CAN COMMUNICATION SYSTEM DIAGNOSIS SYSTEM


  1. CHECK FOR INSTALLED SYSTEMS (ECUS AND SENSORS) THAT USE CAN COMMUNICATION


    1. The systems (ECUs and sensors) that use CAN communication vary depending on the vehicle and optional equipment. Check which systems (ECUs and sensors) are installed to the vehicle.

      Connected to Code ECU/Sensor Name GTS Display Applicability
      - CGW Central Gateway ECU (Network Gateway ECU) - Installed on all vehicles
      V Bus DLC3 DLC3 - Installed on all vehicles
      Bus 2 MET Combination Meter Assembly Combination Meter Installed on all vehicles
      STR Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor) Spiral Cable (Steering Angle Sensor) Installed on all vehicles
      EPS Power Steering ECU Assembly Power Steering (EPS) Installed on all vehicles
      AWD 4WD ECU Assembly Four Wheel Drive Control for AWD
      SMT Certification ECU (Smart Key ECU Assembly) Certification (Smart) Installed on all vehicles
      SRS Airbag ECU Assembly Airbag Installed on all vehicles
      A/C Air Conditioning Amplifier Assembly Air Conditioning Amplifier Installed on all vehicles
      MB Main Body ECU (Multiplex Network Body ECU) Main Body Installed on all vehicles
      HUD Meter Mirror Sub-assembly Head Up Display w/ Headup Display
      BRK Brake Actuator Assembly (Skid Control ECU) Skid Control (ABS/VSC/TRAC) Installed on all vehicles
      S&S Engine Stop and Start ECU Stop and Go/Start w/ Stop and Start System
      PKB Parking Brake ECU Assembly Electric Parking Brake Installed on all vehicles
      ASC Stereo Component Equalizer Assembly ASC w/ ASC System
      LIT Headlight ECU Sub-assembly LH Headlight Swivel (AFS) Installed on all vehicles
      ENG ECM Engine Installed on all vehicles
      Bus 3 YGW Bus Buffer ECU Accessory Gateway w/ Bus Buffer ECU
      DCM Telematics Transceiver DCM w/ Telematics Transceiver
      AV Radio Receiver Assembly Display and Navigation (AVN) Installed on all vehicles
      Bus 5 F-MR Millimeter Wave Radar Sensor Assembly Front Radar w/ Pre-collision System
      F-CAM Forward Recognition Camera Front Camera Module w/ Pre-collision System
      DS Driving Support ECU Assembly Driving Support (Cruise Control-ACC) w/ Pre-collision System
      CS Clearance Warning ECU Assembly Clearance Warning (Clearance Sonar) w/ LEXUS Parking Assist-sensor System
      PAC Parking Assist ECU Panoramic View Monitor / Circumference Monitoring Camera Control Module w/ Panoramic View Monitor System
      BSM Blind Spot Monitor Sensor LH Blind Spot Monitor Master w/ Blind Spot Monitor System
      SUS Absorber Control ECU Suspension Control (Air Suspension) w/ Adaptive Variable Suspension System
      R-CA Rear Television Camera Assembly Parking Assist Monitor System / Rear Camera

      • w/ Parking Assist Monitor System

      • w/ Panoramic View Monitor System
      Sub Bus 1 MB Main Body ECU (Multiplex Network Body ECU) Main Body Installed on all vehicles
      T&T Multiplex Tilt and Telescopic ECU Multiplex Tilt and Telescopic for Power Tilt and Power Telescopic Steering Column
      DST Front Power Seat Switch (for Driver Side) D-Seat w/ Memory
      MIR-R Outer Mirror Control ECU Assembly RH Front Door RH/R-Mirror (FR-Door/R-Mirror) w/ Memory
      MIR-L Outer Mirror Control ECU Assembly LH Front Door LH/L-Mirror (FL-Door/L-Mirror) w/ Memory
      BKD Multiplex Network Door ECU Back Door w/ Power Back Door System

  2. CAN BUS CHECK

    Tech Tips

    The ECUs and sensors that are properly connected to the CAN communication system can be displayed using the GTS.


    1. Using the GTS, select the CAN Bus Check screen.


      CAN Bus Check

      Note


      • It may be possible to select buses that do not have ECUs or sensors from the bus selection pull-down menu. This is not a malfunction. (This occurs when optional devices are not on a sub bus that is monitored by a gateway function equipped ECU.)

      • In the bus selection pull down menu, all buses applicable to the model are displayed (e.g. LIN communication buses are also displayed). Therefore, refer to the wiring diagrams to check the names of sub buses for CAN communication.

        Click here

      Tech Tips

      Different connection statuses are indicated by the background color of ECUs and sensors that are displayed.

      Explanation of CAN Bus Check Screen
      Bus Type Background Color Connection Status
      Bus White Communication has been normal.
      Yellow Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
      Red

      Currently not communicating (either of the following):


      • Not communicating since the start of the CAN bus check

      • Communication occurred at least once since the start of the CAN bus check, but is not occurring currently.
      Not displayed

      Either of the following:


      • The central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS.*4

      • No ECUs or sensors are connected to the bus.*5
      Sub bus with a gateway function equipped ECU that does not memorize connected ECUs or sensors*2 White Communication has been normal since the start of the CAN bus check.
      Yellow Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
      Red Communication occurred at least once since the start of the CAN bus check, but is not occurring currently.
      Not displayed Communication stop has continued since the start of the CAN bus check.*1
      Sub bus with a gateway function equipped ECU that memorizes connected ECUs and sensors*3 White Communication has been normal.
      Yellow Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
      Red

      Currently not communicating (either of the following):


      • Not communicating since the start of the CAN bus check

      • Communication occurred at least once since the start of the CAN bus check, but is not occurring currently.
      Not displayed

      Either of the following:


      • The gateway function equipped ECU cannot communicate with the central gateway ECU (network gateway ECU).*6

      • No ECUs or sensors are connected to the sub bus.*7

      • Gateway function equipped ECUs relay signals between ECUs and sensors connected to different buses.

      • *1: An ECU or sensor is installed to the vehicle but is not displayed on the "Communication Bus Check" screen.

      • *2: The gateway function equipped ECU does not memorize ECUs and sensors connected to its respective sub bus.

      • *3: The gateway function equipped ECU memorizes ECUs and sensors connected to its respective sub bus.

      • *4: When the central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS, the name of buses, sub buses, ECUs and sensors will not be displayed.

      • *5: When no ECUs or sensors are connected to a bus, the message "There is no system found on the communication Bus." will be displayed.

      • *6: When a gateway function equipped ECU cannot communicate with the central gateway ECU (network gateway ECU), the name of sub buses and ECUs or sensors connected to the sub bus will not be displayed.

      • *7: When no ECUs or sensors are connected to the sub bus, the message "There is no system found on the communication Bus." will be displayed.

      • If there is no communication between the GTS and the vehicle, or no ECUs or sensors are displayed as connected, check the central gateway ECU (network gateway ECU) and V bus (the bus that connects the DLC3 to the central gateway ECU (network gateway ECU)) for malfunctions.

    2. Observe the connection response screen for approximately 2 minutes to check for a change in connection status of the connected ECUs and sensors.

      Tech Tips


      • If an open occurs in one of the lines of a CAN branch (except DLC3), output from the other branch line (the line that is not open) will be unstable and it may interfere with the response (display) of other ECUs and sensors.

      • If the connection status changes during the inspection, repair the open in the branch line of the ECU or sensor that does not respond (is not detected) and then perform the CAN bus check again.

  3. HOW TO INTERPRET CAN BUS CHECK SCREEN


    1. When a communication stop is currently occurring, the probable malfunctioning part can be determined from the CAN bus check and by using the following methods.

      Note

      The following CAN bus wiring diagram is provided only as an example. This wiring diagram is different from the actual wiring diagram for this vehicle.

      Tech Tips


      • When a communication stop is currently occurring, it is easier to determine the probable malfunctioning part from the CAN bus check rather than from communication DTCs.

      • Wait for approximately 2 minutes after turning the engine switch on (IG) (or simulate the driving conditions that enable the malfunction to be reproduced) and select "CAN Bus Check". Then observe the communication status of each ECU on the screen.

    2. If a communication error of only 1 ECU or sensor is indicated on the CAN Bus Check screen, a communication stop of the ECU or sensor is suspected.

      Example: Open in both CAN branch lines of HV on the bus 4

      B0058N9C01
      *a Bus 2 *b Bus 4
      *c Sub Bus *d V Bus
      *e Location of Malfunction *f Background color is red

      Tech Tips

      When there are communication stops, ECUs that are present in the vehicle may not be displayed on the CAN Bus Check screen.

    3. If communication errors for multiple ECUs or sensors are indicated on the CAN Bus Check screen, then a communication stop of the ECU or sensor that shows a more serious communication stop (an ECU or sensor whose background color is red) is suspected.

      Example: Open in a CAN branch line for HV on the bus 4

      B0057IZC01
      *a Background color is red *b Background color intermittently becomes yellow or red
      *c Not displayed or background color is yellow or red - -
      Explanation of CAN Bus Check Screen
      Bus Type Background Color Connection Status
      Bus White Communication has been normal.
      Yellow Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
      Red

      Currently not communicating (either of the following):


      • Not communicating since the start of the CAN bus check

      • Communication occurred at least once since the start of the CAN bus check, but is not occurring currently.
      Not displayed

      Either of the following:


      • The central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS.*4

      • No ECUs or sensors are connected to the bus.*5
      Sub bus with a gateway function equipped ECU that does not memorize connected ECUs or sensors*2 White Communication has been normal since the start of the CAN bus check.
      Yellow Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
      Red Communication occurred at least once since the start of the CAN bus check, but is not occurring currently.
      Not displayed Communication stop has continued since the start of the CAN bus check.*1
      Sub bus with a gateway function equipped ECU that memorizes connected ECUs and sensors*3 White Communication has been normal.
      Yellow Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
      Red

      Currently not communicating (either of the following):


      • Not communicating since the start of the CAN bus check

      • Communication occurred at least once since the start of the CAN bus check, but is not occurring currently.
      Not displayed

      Either of the following:


      • The gateway function equipped ECU cannot communicate with the central gateway ECU.*6

      • No ECUs or sensors are connected to the sub bus.*7

      • Gateway function equipped ECUs relay signals between ECUs and sensors connected to different buses.

      • *1: An ECU or sensor is installed to the vehicle but is not displayed on the "Communication Bus Check" screen.

      • *2: The gateway function equipped ECU does not memorize ECUs and sensors connected to its respective sub bus.

      • *3: The gateway function equipped ECU memorizes ECUs and sensors connected to its respective sub bus.

      • *4: When the central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS, the name of buses, sub buses, ECUs and sensors will not be displayed.

      • *5: When no ECUs or sensors are connected to a bus, the message "There is no system found on the communication Bus." will be displayed.

      • *6: When a gateway function equipped ECU cannot communicate with the central gateway ECU (network gateway ECU), the name of sub buses and ECUs or sensors connected to the sub bus will not be displayed.

      • *7: When no ECUs or sensors are connected to the sub bus, the message "There is no system found on the communication Bus." will be displayed.

      • The example of the CAN Bus Check screen in the illustration shows the result of electrical noise on the CAN bus which is caused by an open in a CAN branch line of HV is also unstable. In addition, in this example, MB is equipped with a gateway function. Therefore, communication is also unstable between the Sub bus ECUs of MB and the bus 4.

      • The example in the illustration shows that HV has a red background color on the CAN Bus Check screen. This indicates a more significant communication stop. In this case, a communication stop of HV is suspected.

    4. If a communication error is indicated on both the bus 4 and Sub bus on the CAN Bus Check screen, suspect any communication stop displayed for the bus 4 first.

      Example: Open in both CAN branch lines of MB on the bus 4

      B005A5HC01
      *a Background color is red *b Not displayed

      Tech Tips


      • In the CAN bus check, it is possible to confirm the communication status of ECUs connected to the bus after connecting the GTS to the DLC3. As for sub bus, it is possible to confirm which sub bus connected ECUs can communicate with a gateway function equipped ECU on the bus.

      • If a gateway function equipped ECU has a communication error, ECUs connected to the gateway function equipped ECU are also affected, and communication stops will be indicated.

      • The CAN Bus Check screen in the illustration shows that MB has a gateway function and a communication stop in MB is suspected.

    5. If the CAN Bus Check screen indicates a communication stop only in the sub bus, a communication stop in the sub bus is suspected.

      Example: Open in both CAN branch lines of MIR-R on the sub bus

      B005713C01
      *a Background color is red - -

      Tech Tips


      • A communication error in a sub bus does not affect the other buses.

      • When a gateway function equipped ECU has memorized the ECUs that are connected to the sub bus, if any of the ECUs connected to the gateway function equipped ECU has a communication error, the background color changes to yellow or red. (The displayed name will not disappear.)

    6. If both of the bus 2 main bus lines are open, ECUs or sensors that are located farther away from the central gateway ECU (network gateway ECU) than the open part will be displayed as a communication stop on the CAN Bus Check screen.

      (In this case, HVB, R-MGC and ENG background color changes to red.)

      B0059WFC01
      *a Bus 2 *b Bus 4
      *c Sub Bus *d V Bus
      *e Location of Malfunction *f Background color is red

      Tech Tips

      If a communication error occurs in an ECU, it is not displayed on the CAN Bus Check screen even though the ECU is present.

    7. If both of the sub bus main bus lines are open, ECUs that are located farther away from the gateway function equipped ECU than the open part will be displayed as a communication stop on the CAN Bus Check screen.

      (In this case, MIR-L background color changes to red.)

      B0058WNC01
      *a Bus 2 *b Bus 4
      *c Sub Bus *d V Bus
      *e Location of Malfunction *f Background color is red

    8. When any of the following malfunctions occur, CAN communication cannot be established and almost all ECUs and sensors on the bus show a communication error on the CAN Bus Check screen.

      Details of Malfunction
      Short between CAN lines (CANH and CANL)
      Short between a CAN line (CANH or CANL) and +B
      Short between a CAN line (CANH or CANL) and ground
      Open in a CAN main bus line
      B0057R6C01
      *a When any of the following malfunctions occur on the bus 4 *b When any of the following malfunctions occur on a sub bus
      *c Background color is red *d Not displayed

      Tech Tips


      • When a malfunction occurs in the bus, almost all ECUs and sensors on the bus and sub bus indicate a communication error (almost all ECUs are not displayed). As communication with the gateway function equipped ECU that is connected to the bus stops, communication from the ECUs connected to the sub bus that is monitored by the gateway function equipped ECU also stops (these ECUs are not displayed).

      • When a malfunction occurs in a sub bus, almost all ECUs connected to the sub bus indicate a communication error.

      • A communication error in a sub bus does not affect the other buses.

      • The malfunctioning part can be determined by checking for a short circuit between CAN bus lines or between a CAN bus line and ground or +B short using an electrical tester.

    9. If a communication error of all ECUs and sensors is indicated on the CAN Bus Check screen, a communication stop of the V bus (DLC3 - central gateway ECU (network gateway ECU)) is suspected.

      Open in both CAN branch lines in the V bus

      B00594FC01
      *a Bus 2 *b Bus 4
      *c Sub Bus *d V Bus
      *e Location of Malfunction *f Not displayed

      Tech Tips

      When there is no communication between the GTS and the vehicle, no ECUs or sensors will be displayed.

  4. DTC TABLE BY ECU

    Tech Tips


    • In the CAN communication system, the CAN communication DTCs of each ECU can be displayed using the GTS.

    • If CAN communication system DTCs are output, the malfunction cannot be determined only by the DTCs. Perform troubleshooting according to How to Proceed with Troubleshooting.

      Click here

    • If there is a malfunction currently, DTCs can be checked by performing steps in the DTC check procedure.


    1. ECM / GTS Display "Engine and ECT"


      Powertrain > Engine and ECT > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method

      U110387

      (SAE: U1103)

      		 Lost Communication with Stop and Start Control Module Missing Message Communication stop occurs between the ECM and engine stop and start ECU continuously for 1 second or more.

      All conditions are met:


      • 1 second or more elapse after the engine switch is on (IG).

      • The power source voltage of the ECM is 10.5 V or more.

      		 Turn the engine switch on (IG) and wait at least 2 seconds. - The DTC remains stored until it is cleared using the GTS.

      U110487

      (SAE: U1104)

      		 Lost Communication with Driving Support ECU Missing Message Communication stop occurs between the ECM and driving support ECU assembly continuously for 0.92 seconds or more.

      All conditions are met:


      • 1 second or more elapse after the engine switch is on (IG).

      • The radar cruise control system (vehicle control mode) is operating.

      • The power source voltage of the ECM is 10.5 V or more.

      		 Allow the radar cruise control system (vehicle control mode) to operate for 1 second or more. - The DTC remains stored until it is cleared using the GTS.

    2. Brake Actuator Assembly (Skid Control ECU) / GTS Display "ABS/VSC/TRC"


      Chassis > ABS/VSC/TRC > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0073 Control Module Communication Bus Off

      One of the following conditions is met:


      • The response sent to the brake actuator assembly (skid control ECU) from the spiral with sensor cable sub-assembly (steering angle sensor) is invalid for 1 second or more.

      • The response sent to the brake actuator assembly (skid control ECU) from the airbag ECU assembly is invalid for 1 second or more.

      • The following condition occurs 10 times consecutively within 60 seconds: The response sent to the brake actuator assembly (skid control ECU) from the airbag ECU assembly is invalid at least once within 5 seconds.

      • The following condition occurs 10 times consecutively within 60 seconds: The response sent to the brake actuator assembly (skid control ECU) from the spiral with sensor cable sub-assembly (steering angle sensor) is invalid at least once within 5 seconds.

      • The brake actuator assembly (skid control ECU) cannot send or receive data (the bus is off) 10 times consecutively.

      All conditions are met:


      • 1 second or more elapse after the engine switch is on (IG).

      • The power source voltage of the brake actuator assembly (skid control ECU) is between 10 and 17.4 V.

      		 Turn the engine switch on (IG) and wait at least 60 seconds.

      • ABS warning light illuminates.

      • Brake hold standby indicator light blinks.

      • SLIP indicator light illuminates.

      		 The DTC remains stored until it is cleared using the GTS.
      U0100 Lost Communication With ECM/PCM "A" The response sent to the brake actuator assembly (skid control ECU) from the ECM is invalid for 2 seconds or more.

      All conditions are met:


      • 1 second or more elapse after the engine switch is on (IG).

      • Vehicle speed is 15 km/h (9 mph) or more.

      • The power source voltage of the brake actuator assembly (skid control ECU) is between 10 and 17.4 V.

      		 Drive the vehicle for 3 seconds at a speed of 15 km/h (9 mph) or more.

      • Brake hold standby indicator light blinks.

      • SLIP indicator light illuminates.

      		 The DTC remains stored until it is cleared using the GTS.
      U0124 Lost Communication With Lateral Acceleration Sensor Module

      Either condition is met:


      • The brake actuator assembly (skid control ECU) does not receive data from the airbag ECU assembly for 1 second or more.

      • The following condition occurs 10 times consecutively within 60 seconds: The response sent to the brake actuator assembly (skid control ECU) from the airbag ECU assembly is invalid at least once within 5 seconds.

      All conditions are met:


      • 1 second or more elapse after the engine switch is on (IG).

      • The power source voltage of the brake actuator assembly (skid control ECU) is between 10 and 17.4 V.

      		 Turn the engine switch on (IG) and wait at least 60 seconds.

      • ABS warning light illuminates.

      • Brake hold standby indicator light blinks.

      • SLIP indicator light illuminates.

      		 The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication With Steering Angle Sensor Module

      Either condition is met:


      • The brake actuator assembly (skid control ECU) does not receive data from the spiral with sensor cable sub-assembly (steering angle sensor) for 1 second or more.

      • The following condition occurs 10 times consecutively within 60 seconds: The response sent to the brake actuator assembly (skid control ECU) from the spiral with sensor cable sub-assembly (steering angle sensor) is invalid at least once within 5 seconds.

      All conditions are met:


      • 1 second or more elapse after the engine switch is on (IG).

      • The power source voltage of the brake actuator assembly (skid control ECU) is between 10 and 17.4 V.

      		 Turn the engine switch on (IG) and wait at least 60 seconds. SLIP indicator light illuminates. The DTC remains stored until it is cleared using the GTS.
      U0128 Lost Communication With EPB Module Communication stop occurs between the brake actuator assembly (skid control ECU) and parking brake ECU assembly continuously for 1 second or more.

      All conditions are met:


      • 1 second or more elapse after the engine switch is on (IG).

      • The power source voltage of the brake actuator assembly (skid control ECU) is between 10 and 17.4 V.

      		 Turn the engine switch on (IG) and wait at least 2 seconds. Brake hold standby indicator light illuminates. The DTC remains stored until it is cleared using the GTS.

    3. Combination Meter Assembly / GTS Display "Combination Meter"


      Body Electrical > Combination Meter > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication with ECM/PCM "A" Communication stop occurs between the combination meter assembly and ECM continuously for 2 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The combination meter assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 2 seconds. The MIL illuminates. The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module

      Either condition is met:


      • Communication stop occurs between the combination meter assembly and brake actuator assembly (skid control ECU) continuously for 2 seconds or more.

      • Communication stop occurs between the combination meter assembly and brake actuator assembly (skid control ECU) continuously for 3 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The combination meter assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 3 seconds.

      • ABS warning light illuminates.

      • Brake hold standby indicator light blinks.

      • SLIP indicator light illuminates.

      		 The DTC remains stored until it is cleared using the GTS.
      U0131 Lost Communication with Power Steering Control Module Communication stop occurs between the combination meter assembly and power steering ECU assembly continuously for 3 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The combination meter assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 3 seconds. The EPS warning light illuminates. The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication with Body Control Module "B"

      Either condition is met:


      • Communication stop occurs between combination meter assembly and main body ECU (multiplex network body ECU) continuously for 3 seconds or more.

      • Communication stop occurs between the combination meter assembly and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The combination meter assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. The Tire pressure warning light blinks and then illuminates. The DTC remains stored until it is cleared using the GTS.
      U0151 Lost Communication with Restraints Control Module Communication stop occurs between the combination meter assembly and airbag ECU assembly continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The combination meter assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. The SRS warning light illuminates. The DTC remains stored until it is cleared using the GTS.
      U0163 Lost Communication With Navigation Control Module Communication stop occurs between the combination meter assembly and radio receiver assembly continuously for 3 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The combination meter assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 3 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0182 Lost Communication with Lighting Control Module Front Communication stop occurs between the combination meter assembly and headlight ECU sub-assembly LH continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The combination meter assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U023A Lost Communication with Front Camera Module Communication stop occurs between the combination meter assembly and forward recognition camera continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The combination meter assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds.

      • Lane departure alert indicator light illuminates.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U1104 Lost Communication with Driving Support ECU Communication stop occurs between the combination meter assembly and driving support ECU assembly continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The combination meter assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds.

      • PCS OFF indicator light flashes.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.

    4. Engine Stop and Start ECU (w/ Stop and Start System) / GTS Display "Stop and Start"


      Powertrain > Stop and Start > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U010087 Lost Communication with ECM/PCM "A" Missing Message Communication stop occurs between the engine stop and start ECU and ECM continuously for 1 second or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The engine stop and start ECU power source voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 4 seconds. The stop and start cancel indicator light blinks. The DTC remains stored until it is cleared using the GTS.
      U012687 Lost Communication with Steering Angle Sensor Module Missing Message Communication stop occurs between the engine stop and start ECU and spiral with sensor cable sub-assembly (steering angle sensor) continuously for 1 second or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The engine stop and start ECU power source voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 4 seconds. The stop and start cancel indicator light blinks. The DTC remains stored until it is cleared using the GTS.
      U012987 Lost Communication with Brake System Control Module Missing Message Communication stop occurs between the engine stop and start ECU and brake actuator assembly (skid control ECU) continuously for approximately 3 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The engine stop and start ECU power source voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 6 seconds. The stop and start cancel indicator light blinks. The DTC remains stored until it is cleared using the GTS.
      U013187 Lost Communication With Power Steering Control Module Missing Message Communication stop occurs between the engine stop and start ECU and power steering ECU assembly continuously for approximately 1 second or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The engine stop and start ECU power source voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 4 seconds. The stop and start cancel indicator light blinks. The DTC remains stored until it is cleared using the GTS.
      U014087 Lost Communication with Body Control Module Missing Message Communication stop occurs between the engine stop and start ECU and main body ECU (multiplex network body ECU) continuously for approximately 4 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The engine stop and start ECU power source voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 7 seconds. The stop and start cancel indicator light blinks. The DTC remains stored until it is cleared using the GTS.
      U015187 Lost Communication with Restraints Control Module Missing Message Communication stop occurs between the engine stop and start ECU and airbag ECU assembly continuously for approximately 11 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The engine stop and start ECU power source voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 14 seconds. The stop and start cancel indicator light blinks. The DTC remains stored until it is cleared using the GTS.
      U016487 Lost Communication with HVAC Control Module Missing Message Communication stop occurs between the engine stop and start ECU and air conditioning amplifier assembly continuously for approximately 11 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The engine stop and start ECU power source voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 14 seconds. The stop and start cancel indicator light blinks. The DTC remains stored until it is cleared using the GTS.

    5. Air Conditioning Amplifier Assembly / GTS Display "Air Conditioner"


      Body Electrical > Air Conditioner > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication With ECM/PCM "A" Communication stop occurs between the air conditioning amplifier assembly and ECM continuously for 5 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The air conditioning amplifier assembly power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 5 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0131 Lost Communication With Power Steering Control Module Communication stop occurs between the air conditioning amplifier assembly and power steering ECU assembly continuously for 3 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The air conditioning amplifier assembly power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 3 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication With Body Control Module "B" Communication stop occurs between the air conditioning amplifier assembly and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The air conditioning amplifier assembly power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 5 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module Communication stop occurs between the air conditioning amplifier assembly and combination meter assembly continuously for 5 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The air conditioning amplifier assembly power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 5 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0163 Lost Communication with Navigation Control Module Communication stop occurs between the air conditioning amplifier assembly and radio receiver assembly continuously for 5 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The air conditioning amplifier assembly power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 5 seconds. - The DTC remains stored until it is cleared using the GTS.

    6. Power Steering ECU Assembly / GTS Display "EMPS"


      Chassis > EMPS > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication with ECM/PCM "A" Communication stop occurs between the power steering ECU assembly and ECM continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more elapse after turning the engine switch on (IG).

      • Vehicle speed is 20 km/h (12 mph) or more.

      • The power steering ECU assembly power supply voltage is 9 V or higher.

      		 Drive the vehicle for 7 seconds at a speed of 20 km/h (12 mph) or more. The EPS warning light (yellow) illuminates. The DTC is stored only while the malfunction is present.
      U0129 Lost Communication with Brake System Control Module Communication stop occurs between the power steering ECU assembly and brake actuator assembly (skid control ECU) continuously for approximately 3 seconds or more.

      All conditions are met:


      • 2 seconds or more elapse after turning the engine switch on (IG).

      • The power steering ECU assembly power supply voltage is 9 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 5 seconds. The EPS warning light (yellow) illuminates. The DTC is stored only while the malfunction is present.

    7. Headlight ECU Sub-assembly LH (for Triple Beam Headlight) / GTS Display "AFS"


      Body Electrical > AFS > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0073 Control Module Communication Bus OFF Bus off condition is detected.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 3 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0100 Lost Communication with ECM/PCM "A" Communication stop occurs between the headlight ECU sub-assembly LH and ECM continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0101 Lost Communication with TCM Communication stop occurs between the headlight ECU sub-assembly LH and ECM continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication with Steering Angle Sensor Module

      Either condition is met:


      • Communication stop occurs between the headlight ECU sub-assembly LH and spiral with sensor cable sub-assembly (steering angle sensor) continuously for 5 seconds or more.

      • Communication stop occurs between the headlight ECU sub-assembly LH and spiral with sensor cable sub-assembly (steering angle sensor) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module

      Either condition is met:


      • Communication stop occurs between the headlight ECU sub-assembly LH and brake actuator assembly (skid control ECU) continuously for 5 seconds or more.

      • Communication stop occurs between the headlight ECU sub-assembly LH and brake actuator assembly (skid control ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication with Body Control Module "B" Communication stop occurs between the headlight ECU sub-assembly LH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module

      Either condition is met:


      • Communication stop occurs between the headlight ECU sub-assembly LH and combination meter assembly continuously for 10 seconds or more.

      • Communication stop occurs between the headlight ECU sub-assembly LH and combination meter assembly continuously for 30 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 33 seconds. - The DTC remains stored until it is cleared using the GTS.
      U023A Lost Communication With Image Processing Module "A" Communication stop occurs between the headlight ECU sub-assembly LH and forward recognition camera continuously for 5 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 8 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0242* Communication With Headlamp Control Module "B"

      Either condition is met:


      • The microcomputer inside the headlight control ECU assembly RH stops.

      • Communication stop occurs between the headlight ECU sub-assembly LH and headlight light control ECU sub-assembly RH continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1000* CAN Communication Failure(Message Registry) CAN communication malfunction (message register) Turn the engine switch on (IG). Turn the engine switch on (IG). - The DTC remains stored until it is cleared using the GTS.

      *: Refer to the Lighting System.

      Click here

    8. Headlight ECU Sub-assembly LH (for Single Beam Headlight) / GTS Display "HL AutoLeveling"


      Body Electrical > HL AutoLeveling > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0073 Control Module Communication Bus OFF Bus off condition is detected.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 3 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0100 Lost Communication with ECM/PCM "A" Communication stop occurs between the headlight ECU sub-assembly LH and ECM continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0101 Lost Communication with TCM Communication stop occurs between the headlight ECU sub-assembly LH and ECM continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication with Steering Angle Sensor Module

      Either condition is met:


      • Communication stop occurs between the headlight ECU sub-assembly LH and spiral with sensor cable sub-assembly (steering angle sensor) continuously for 5 seconds or more.

      • Communication stop occurs between the headlight ECU sub-assembly LH and spiral with sensor cable sub-assembly (steering angle sensor) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module

      Either condition is met:


      • Communication stop occurs between the headlight ECU sub-assembly LH and brake actuator assembly (skid control ECU) continuously for 5 seconds or more.

      • Communication stop occurs between the headlight ECU sub-assembly LH and brake actuator assembly (skid control ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication with Body Control Module "B" Communication stop occurs between the headlight ECU sub-assembly LH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module

      Either condition is met:


      • Communication stop occurs between the headlight ECU sub-assembly LH and combination meter assembly continuously for 10 seconds or more.

      • Communication stop occurs between the headlight ECU sub-assembly LH and combination meter assembly continuously for 30 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 33 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0242* Communication With Headlamp Control Module "B"

      Either condition is met:


      • The microcomputer inside the headlight control ECU assembly RH stops.

      • Communication stop occurs between the headlight ECU sub-assembly LH and headlight light control ECU sub-assembly RH continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1000* CAN Communication Failure(Message Registry) CAN communication malfunction (message register) Turn the engine switch on (IG). Turn the engine switch on (IG). - The DTC remains stored until it is cleared using the GTS.

      *: Refer to the Lighting System.

      Click here

    9. Main Body ECU (Multiplex Network Body ECU) / GTS Display "Main Body"


      Body Electrical > Main Body > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication With ECM/PCM "A" Communication stop occurs between the main body ECU (multiplex network body ECU) and ECM continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0101 Lost Communication with TCM Communication stop occurs between the main body ECU (multiplex network body ECU) and ECM continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0120 Lost Communication With Starter / Generator Control Module Communication stop occurs between the main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module Communication stop occurs between the main body ECU (multiplex network body ECU) and certification brake actuator assembly (skid control ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0151 Lost Communication with Restraints Control Module Communication stop occurs between the main body ECU (multiplex network body ECU) and airbag ECU assembly continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module Communication stop occurs between the main body ECU (multiplex network body ECU) and combination meter assembly continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0182 Lost Communication with AFS Communication stop occurs between the main body ECU (multiplex network body ECU) and headlight ECU sub-assembly LH continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0199 Lost Communication with "Door Control Module A" Communication stop occurs between the main body ECU (multiplex network body ECU) and outer mirror control ECU assembly LH continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0200 Lost Communication with "Door Control Module B" Communication stop occurs between the main body ECU (multiplex network body ECU) and outer mirror control ECU assembly RH continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0208 Lost Communication with "Seat Control Module A" Communication stop occurs between the main body ECU (multiplex network body ECU) and front power seat switch LH continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0230 Lost Communication with Rear Gate Module Communication stop occurs between the main body ECU (multiplex network body ECU) and multiplex network door ECU continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U023A Lost Communication with Image Processing Module "A" Communication stop occurs between the main body ECU (multiplex network body ECU) and forward recognition camera continuously for 5 seconds or more.

      All conditions are met:


      • 5 seconds or more elapse after turning the engine switch on (IG).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0327 Software Incompatibility with Vehicle Security Control Module Communication stop occurs between the main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1002 Lost Communication with Gateway Module The main body ECU (multiplex network body ECU) detects a problem when communicating with the multiplex tilt and telescopic ECU, outer mirror control ECU assembly RH, outer mirror control ECU assembly LH, front power seat switch (for Driver Side) and the multiplex network door ECU.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1106 Lost Communication with Electric Parking Brake Module Communication stop occurs between the main body ECU (multiplex network body ECU) and parking brake ECU assembly continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1115 Lost Communication with Tilt & Telescopic Module Communication stop occurs between the main body ECU (multiplex network body ECU) and multiplex tilt and telescopic ECU continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1117 Lost Communication with Accessory Gateway Communication stop occurs between the main body ECU (multiplex network body ECU) and bus buffer ECU continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The main body ECU (multiplex network body ECU) power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.

    10. Certification ECU (Smart Key ECU Assembly) / GTS Display "Entry&Start"


      Body Electrical > Entry&Start > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication With ECM/PCM "A" Communication stop occurs between the certification ECU (smart key ECU assembly) and ECM continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The certification ECU (smart key ECU assembly) power source voltage is 10 V or higher.

      		 Turn the engine switch on (ACC) or on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication with Body Control Module "B" Communication stop occurs between the certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The certification ECU (smart key ECU assembly) power source voltage is 10 V or higher.

      		 Turn the engine switch on (ACC) or on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module Communication stop occurs between the certification ECU (smart key ECU assembly) and combination meter assembly continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The certification ECU (smart key ECU assembly) power source voltage is 10 V or higher.

      		 Turn the engine switch on (ACC) or on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1103 Lost Communication with Stop and Start Control Module Communication stop occurs between the certification ECU (smart key ECU assembly) and engine stop and start ECU continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The certification ECU (smart key ECU assembly) power source voltage is 10 V or higher.

      		 Turn the engine switch on (ACC) or on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1117 Lost Communication with Accessory Gateway Communication stop occurs between the certification ECU (smart key ECU assembly) and bus buffer ECU continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The certification ECU (smart key ECU assembly) power source voltage is 10 V or higher.

      		 Turn the engine switch on (ACC) or on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.

    11. Certification ECU (Smart Key ECU Assembly) / GTS Display "Power Source Control"


      Body Electrical > Power Source Control > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 ECM Communication Communication stop occurs between the certification ECU (smart key ECU assembly) and ECM continuously for approximately 4 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The certification ECU (smart key ECU assembly) power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 4 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0140 Lost Communication with Body Control Module Communication stop occurs between the certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) continuously for 3 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The certification ECU (smart key ECU assembly) power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 3 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module Communication stop occurs between the certification ECU (smart key ECU assembly) and combination meter assembly continuously for approximately 4 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The certification ECU (smart key ECU assembly) power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 4 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1103 Lost Communication with Stop and Start Control Module Communication stop occurs between the certification ECU (smart key ECU assembly) and the engine stop and start ECU continuously for 5 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The certification ECU (smart key ECU assembly) power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 5 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1117 Lost Communication with Accessory Gateway Communication stop occurs between the certification ECU (smart key ECU assembly) and bus buffer ECU continuously for 5 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The certification ECU (smart key ECU assembly) power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 5 seconds. - The DTC remains stored until it is cleared using the GTS.

    12. Certification ECU (Smart Key ECU Assembly) / GTS Display "Starting Control"


      Body Electrical > Starting Control > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 ECM Communication Communication stop occurs between the certification ECU (smart key ECU assembly) and ECM continuously for 2 seconds or more. The engine switch is on (IG). Turn the engine switch on (IG) and wait at least 2 seconds. - The DTC remains stored until it is cleared using the GTS.

    13. Radio Receiver Assembly / GTS Display "Navigation System"


      Body Electrical > Navigation System > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0073 Sending Malfunction (Navigation to APGS)

      Either condition is met:


      • Bus off condition is detected.

      • The bus turns off consecutively.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The radio receiver assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 3 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0100 Engine ECU Communication

      Either condition is met:


      • Communication stop occurs between the radio receiver assembly and ECM continuously for 10 seconds or more.

      • Communication stop occurs between the radio receiver assembly and ECM continuously for 11 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The radio receiver assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 14 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0129 VSC(ECB*)ECU Communication

      Either condition is met:


      • Communication stop occurs between the radio receiver assembly and brake actuator assembly (skid control ECU) continuously for 4 seconds or more.

      • Communication stop occurs between the radio receiver assembly and brake actuator assembly (skid control ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The radio receiver assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0140 Lost Communication with Body Control Module Communication stop occurs between the radio receiver assembly and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The radio receiver assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0155 Meter ECU Communication Communication stop occurs between the radio receiver assembly and combination meter assembly continuously for 30 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The radio receiver assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 33 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0164 Air Conditioner ECU Communication Communication stop occurs between the radio receiver assembly and air conditioning amplifier assembly continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The radio receiver assembly power source voltage is 9.5 V or higher.

      • After turning the engine switch on (IG), the radio receiver assembly receives a data from the air conditioning amplifier assembly 1 time or more.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0198 Lost Communication with Telematic Control Module Communication stop occurs between the radio receiver assembly and telematics transceiver continuously for 3 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The radio receiver assembly power source voltage is 9.5 V or higher.

      • After turning the engine switch on (IG), the radio receiver assembly receives a data from the telematics transceiver 1 time or more.

      		 Turn the engine switch on (IG) and wait at least 6 seconds. - The DTC remains stored until it is cleared using the GTS.
      U023B Lost Communication with Image Processing Module "B" Communication stop occurs between the radio receiver assembly and parking brake ECU assembly continuously for approximately 12 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The radio receiver assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 15 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0265 Lost Communication with Image Processing Sensor A Communication stop occurs between the radio receiver assembly and rear television camera assembly continuously for approximately 12 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The radio receiver assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 15 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1110 Clearance Sonar ECU Communication Communication stop occurs between the radio receiver assembly and clearance warning ECU assembly continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The radio receiver assembly power source voltage is 9.5 V or higher.

      • After turning the engine switch on (IG), the radio receiver assembly receives a data from the clearance warning ECU assembly 1 time or more.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.

      ECB*: Electronically Controlled Brake System

    14. Telematics Transceiver (w/ Telematics Transceiver for G-BOOK) / GTS Display "Navigation System"


      Body Electrical > Navigation System > Trouble Codes

      Tech Tips


      • The telematics transceiver notifies the radio receiver assembly of DTCs via local communication.

      • DTC communication for the radio receiver assembly and GTS is performed via CAN communication.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0140 Lost Communication with Body Control Module Communication stop occurs between the telematics transceiver and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after turning the engine switch on (IG).

      • The telematics transceiver power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The telematics transceiver power source voltage is 9.5 V or higher.
      U0155 Meter ECU Communication Communication stop occurs between the telematics transceiver and combination meter assembly continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after turning the engine switch on (IG).

      • The telematics transceiver power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0163 Lost Communication with Navigation Control Module Communication stop occurs between the telematics transceiver and radio receiver assembly continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after turning the engine switch on (IG).

      • The telematics transceiver power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.

    15. Telematics Transceiver (w/ Telematics Transceiver except G-BOOK) / GTS Display "Telematics"


      Body Electrical > Telematics > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication with ECM/PCM "A" Communication stop occurs between the telematics transceiver and ECM continuously for approximately 15 seconds or more. 10 seconds or more elapse after turning the engine switch on (IG). Turn the engine switch on (IG) and wait at least approximately 25 seconds. - The DTC remains stored until it is cleared using the GTS.

    16. Absorber Control ECU (w/ Adaptive Variable Suspension System) / GTS Display "Air suspension"


      Chassis > Air suspension > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication With ECM/PCM "A" Communication stop occurs between the absorber control ECU and ECM continuously for 3 seconds or more.

      All conditions are met:


      • 1 second or more elapses after turning the engine switch on (IG).

      • The vehicle speed is 30 km/h (18 mph) or more.

      • The absorber control ECU power source voltage is 10 V or higher.

      		 Drive the vehicle for 4 seconds or more at a speed of 30 km/h (18 mph) or more. - The DTC remains stored until it is cleared using the GTS.
      U0101 Lost Communication with TCM Communication stop occurs between the absorber control ECU and ECM continuously for 3 seconds or more.

      All conditions are met:


      • 1 second or more elapses after turning the engine switch on (IG).

      • The vehicle speed is 30 km/h (18 mph) or more.

      • The absorber control ECU power source voltage is 10 V or higher.

      		 Drive the vehicle for 4 seconds or more at a speed of 30 km/h (18 mph) or more. - The DTC remains stored until it is cleared using the GTS.
      U0122 Lost Communication with Vehicle Dynamics Control Module Communication stop occurs between the absorber control ECU and brake actuator assembly (skid control ECU) continuously for 3 seconds or more.

      All conditions are met:


      • 2 seconds or more elapse after turning the engine switch on (IG).

      • The absorber control ECU power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 5 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0124 Lost Communication with Lateral Acceleration Sensor Module Communication stop occurs between the absorber control ECU and airbag ECU assembly continuously for 3 seconds or more.

      All conditions are met:


      • 1 second or more elapses after turning the engine switch on (IG).

      • The absorber control ECU power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 4 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication with Steering Angle Sensor Module Communication stop occurs between the absorber control ECU and spiral with sensor cable sub-assembly (steering angle sensor) continuously for 3 seconds or more.

      All conditions are met:


      • 1 second or more elapses after turning the engine switch on (IG).

      • The absorber control ECU power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 4 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1103 Lost Communication with Stop and Start Control Module Communication stop occurs between the absorber control ECU and engine stop and start ECU continuously for 3 seconds or more.

      All conditions are met:


      • The vehicle speed is 30 km/h (18 mph) or more.

      • The absorber control ECU power source voltage is 10 V or higher.

      		 Drive the vehicle for 3 seconds or more at a speed of 30 km/h (18 mph) or more. - The DTC remains stored until it is cleared using the GTS.

    17. 4WD ECU assembly (for AWD) / GTS Display "Four Wheel Drive"


      Chassis > Four Wheel Drive > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0073 Control Module Communication Bus Off The response sent to the brake actuator assembly (skid control ECU) or ECM is continuously invalid for 5 seconds.

      All conditions are met:


      • 1 second or more elapses after turning the engine switch on (IG).

      • The 4WD ECU assembly power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 6 seconds. The AWD indicator light illuminates. The DTC remains stored until it is cleared using the GTS.
      U0100 Lost Communication With ECM/PCM "A" Communication stop occurs between the 4WD ECU assembly and ECM continuously for 3.5 seconds or more.

      All conditions are met:


      • 1 second or more elapses after turning the engine switch on (IG).

      • The vehicle speed is 60 km/h (37 mph) or more.

      • The 4WD ECU assembly power source voltage is 10 V or higher.

      		 Drive the vehicle for 4.5 seconds or more at a speed of 60 km/h (37 mph) or more. - The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication With Steering Angle Sensor Module Communication stop occurs between the 4WD ECU assembly and spiral with sensor cable sub-assembly (steering angle sensor) continuously for 1 second or more.

      All conditions are met:


      • 1 second or more elapses after turning the engine switch on (IG).

      • The 4WD ECU assembly power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 60 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication With Brake System Control Module Communication stop occurs between the 4WD ECU assembly and brake actuator assembly (skid control ECU) continuously for 8 seconds or more.

      All conditions are met:


      • 2 second or more elapses after turning the engine switch on (IG).

      • The 4WD ECU assembly power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. The AWD indicator light illuminates. The DTC remains stored until it is cleared using the GTS.

    18. ECM / GTS Display "Cruise Control" (w/ Cruise Control System)


      Powertrain > Cruise Control > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method

      U012287

      (SAE: U0122)

      		 Lost Communication with Vehicle Dynamics Control Module Missing Message Communication stop occurs between the ECM and brake actuator assembly (skid control ECU) continuously for approximately 3 seconds or more.

      All of the following conditions are met:


      • 1 second or more elapse after the engine switch is on (IG).

      • The cruise control switch is on.

      • The power source voltage of the ECM is 10.5 V or more.

      		 After turning the engine switch on (IG), turn the cruise control switch on and wait for at least 3.58 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.

    19. ECM / GTS Display "Radar Cruise1" (w/ Pre-collision System)


      Powertrain > Radar Cruise1 > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U010087 Lost Communication with ECM/PCM "A" Missing Message Communication stop occurs between the ECM and ECM (transmission control ECU) continuously for 1 second or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The radar cruise control system (vehicle control mode) is operating.

      		 Allow the radar cruise control system (vehicle control mode) to operate for 1 second or more. Displays messages on the multi-information display. DTC is stored until it is cleared using the GTS.
      U012287 Lost Communication with Vehicle Dynamics Control Module Missing Message Communication stop occurs between the ECM and brake actuator assembly (skid control ECU) continuously for approximately 3 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The radar cruise control system (vehicle control mode) is operating.

      		 Allow the radar cruise control system (vehicle control mode) to operate for approximately 3 seconds or more. Displays messages on the multi-information display. DTC is stored until it is cleared using the GTS.
      U110487 Lost Communication with Cruise Control Module Missing Message Communication stop occurs between the ECM and driving support ECU assembly continuously for approximately 1 second or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The radar cruise control system (vehicle control mode) is operating.

      		 Allow the radar cruise control system (vehicle control mode) to operate for approximately 1 second or more. Displays messages on the multi-information display. DTC is stored until it is cleared using the GTS.

    20. Driving support ECU assembly (w/ Pre-collision System) / GTS Display "Radar Cruise2"


      Powertrain > Radar Cruise2 > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication With ECM/PCM "A" Communication stop occurs between the driving support ECU assembly and ECM continuously for approximately 1 second or more.

      All conditions are met:


      • 1 second or more elapses after turning the engine switch on (IG).

      • w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more.

      • w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more.

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      • w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 2 seconds or more at a speed of 5 km/h (3 mph) or higher.

      • w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 2 seconds or more at a speed of 36 km/h (22 mph) or higher.

      		 Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0125 Lost Communication with Yaw Rate Sensor Module Communication stop occurs between the driving support ECU assembly and airbag ECU assembly continuously for approximately 1 second or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more.

      • w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more.

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      • w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 4 seconds or more at a speed of 5 km/h (3 mph) or higher.

      • w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 4 seconds or more at a speed of 36 km/h (22 mph) or higher.

      		 Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication with Steering Angle Sensor Module Communication stop occurs between the driving support ECU assembly and spiral with sensor cable sub-assembly (steering angle sensor) continuously for approximately 6 seconds or more.

      All conditions are met:


      • 1 second or more elapses after turning the engine switch on (IG).

      • w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more.

      • w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more.

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      • w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 7 seconds or more at a speed of 5 km/h (3 mph) or higher.

      • w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 7 seconds or more at a speed of 36 km/h (22 mph) or higher.

      		 Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module Communication stop occurs between the driving support ECU assembly and brake actuator assembly (skid control ECU) continuously for approximately 2 seconds or more.

      All conditions are met:


      • 2 seconds or more elapse after turning the engine switch on (IG).

      • w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more.

      • w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more.

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      • w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 4 seconds or more at a speed of 5 km/h (3 mph) or higher.

      • w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 4 seconds or more at a speed of 36 km/h (22 mph) or higher.

      		 Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0235 Lost Communication with Cruise Control Front Distance Range Sensor Communication abnormal data between the driving support ECU assembly and millimeter wave radar sensor assembly is continuously for approximately 1 second or more.

      All conditions are met:


      • 1 second or more elapse after turning the engine switch on (IG).

      • w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more.

      • w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more.

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      • w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 3 seconds or more at a speed of 5 km/h (3 mph) or higher.

      • w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 3 seconds or more at a speed of 36 km/h (22 mph) or higher.

      		 Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U1104* Lost Communication with Driving Support ECU

      Either condition is met:


      • Communication stop occurs between the driving support ECU assembly and millimeter wave radar sensor assembly continuously for 1 second or more.

      • Communication stop occurs between the driving support ECU assembly and millimeter wave radar sensor assembly continuously for approximately 1 second or more.

      All conditions are met:


      • 1 second or more elapse after turning the engine switch on (IG).

      • w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more.

      • w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more.

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      • w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 2 seconds or more at a speed of 5 km/h (3 mph) or higher.

      • w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 2 seconds or more at a speed of 36 km/h (22 mph) or higher.

      		 Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.

    21. Driving Support ECU Assembly (w/ Pre-collision System) / GTS Display "Pre-collision 2"


      Body Electrical > Pre-Collision 2 > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication With ECM/PCM "A" Communication stop occurs between the driving support ECU assembly and ECM continuously for approximately 1 second or more.

      All conditions are met:


      • 3 seconds or more elapses after turning the engine switch on (IG).

      • The vehicle speed is 5 km/h (3 mph) or more.

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      		 Drive the vehicle for approximately 4 seconds or more at a speed of 5 km/h (3 mph) or more.

      • The PCS OFF indicator light blinks.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0125 Lost Communication with Yaw Rate Sensor Module Communication stop occurs between the driving support ECU assembly and airbag ECU assembly continuously for approximately 1 second or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 4 seconds.

      • The PCS OFF indicator light blinks.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication with Steering Angle Sensor Module Communication stop occurs between the driving support ECU assembly and spiral with sensor cable sub-assembly (steering angle sensor) continuously for approximately 1 second or more.

      All conditions are met:


      • 3 seconds or more elapses after turning the engine switch on (IG).

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 4 seconds.

      • The PCS OFF indicator light blinks.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module Communication stop occurs between the driving support ECU assembly and brake actuator assembly (skid control ECU) continuously for approximately 3 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 6 seconds.

      • The PCS OFF indicator light blinks.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0235* Lost Communication with Cruise Control Front Distance Range Sensor Communication stop occurs between the driving support ECU assembly and millimeter wave radar sensor assembly continuously for approximately 1 second or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 4 seconds.

      • The PCS OFF indicator light blinks.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U023A* Lost Communication with Image Processing Module "A" Communication stop occurs between the driving support ECU assembly and forward recognition camera continuously for approximately 3 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after turning the engine switch on (IG).

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 6 seconds.

      • The PCS OFF indicator light blinks.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U1002* Lost Communication with Gateway Module Communication abnormal data between the driving support ECU assembly and millimeter wave radar sensor assembly or driving support ECU assembly and forward recognition camera is continuously for approximately 1 second or more.

      All conditions are met:


      • 1 second or more elapse after turning the engine switch on (IG).

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 2 seconds.

      • The PCS OFF indicator light blinks.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U1104* Lost Communication with Driving Support ECU Communication stop occurs between the driving support ECU assembly and millimeter wave radar sensor assembly continuously for approximately 1 second or more.

      All conditions are met:


      • 1 second or more elapse after turning the engine switch on (IG).

      • The driving support ECU assembly power supply voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 4 seconds.

      • The PCS OFF indicator light blinks.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      Communication stop occurs between the driving support ECU assembly and brake actuator assembly (skid control ECU) continuously for approximately 2 seconds or more.

      All conditions are met:


      • 2 seconds or more elapse after turning the engine switch on (IG).

      • The driving support ECU assembly power supply voltage is 10 V or higher.

    22. Clearance Warning ECU Assembly(w/ LEXUS Parking Assist-sensor System) / GTS Display "IPA/ICS/Clearance Sonar"


      Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication with ECM/PCM "A"

      Either condition is met:


      • Communication stop occurs between the clearance warning ECU assembly and ECM continuously for approximately 1 second or more.

      • Communication stop occurs between the clearance warning ECU assembly and ECM continuously for approximately 2 seconds or more.

      • Communication stop occurs between the clearance warning ECU assembly and ECM continuously for approximately 6 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The clearance warning ECU assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 9 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication With Steering Angle Sensor Module

      Either condition is met:


      • Communication stop occurs between the clearance warning ECU assembly and spiral with sensor cable sub-assembly (steering angle sensor) continuously for approximately 1 second or more.

      • Communication stop occurs between the clearance warning ECU assembly and spiral with sensor cable sub-assembly (steering angle sensor) continuously for approximately 6 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The clearance warning ECU assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 9 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module

      Either condition is met:


      • Communication stop occurs between the clearance warning ECU assembly and brake actuator assembly (skid control ECU) continuously for approximately 1 second or more.

      • Communication stop occurs between the clearance warning ECU assembly and brake actuator assembly (skid control ECU) continuously for approximately 2 seconds or more.

      • Communication stop occurs between the clearance warning ECU assembly and brake actuator assembly (skid control ECU) continuously for approximately 3 seconds or more.

      • Communication stop occurs between the clearance warning ECU assembly and brake actuator assembly (skid control ECU) continuously for approximately 5 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The clearance warning ECU assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 8 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0140 Lost Communication with Body Control Module

      Either condition is met:


      • Communication stop occurs between the clearance warning ECU assembly and main body ECU (multiplex network body ECU) continuously for approximately 3 seconds or more.

      • Communication stop occurs between the clearance warning ECU assembly and main body ECU (multiplex network body ECU) continuously for approximately 5 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The clearance warning ECU assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 8 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0151 Lost Communication with Restraints Control Module (Air Bag) Communication stop occurs between the clearance warning ECU assembly and airbag ECU assembly continuously for approximately 1 second or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The clearance warning ECU assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 4 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module Communication stop occurs between the clearance warning ECU assembly and combination meter assembly continuously for 5 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The clearance warning ECU assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 8 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0164 Lost Communication with HVAC Control Module Communication stop occurs between the clearance warning ECU assembly and air conditioning amplifier assembly continuously for 5 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The clearance warning ECU assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 8 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1000* CAN Communication Failure(Message Registry) A CAN communication function malfunction is detected in the clearance warning ECU assembly.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The clearance warning ECU assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 3 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U1103 Lost Communication with Stop and Start Control Module Communication stop occurs between the clearance warning ECU assembly and the engine stop and start ECU continuously for approximately 1 second or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The clearance warning ECU assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 4 seconds. - The DTC remains stored until it is cleared using the GTS.

      *: Refer to LEXUS Parking Assist-sensor System

      Click here

    23. Parking Assist ECU (w/ Panoramic View Monitor System) / GTS Display "Panoramic View Monitor"


      Chassis > Panoramic View Monitor > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0073 Control Module Communication Bus Off The parking assist ECU is unable to send or receive data 10 times consecutively.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0100 Lost Communication with ECM/PCM "A" Communication stop occurs between the parking assist ECU and ECM continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication with Steering Angle Sensor Module Communication stop occurs between the parking assist ECU and spiral with sensor cable sub-assembly (steering angle sensor) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module Communication stop occurs between the parking assist ECU and brake actuator assembly (skid control ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0140 Lost Communication with Body Control Module Communication stop occurs between the parking assist ECU and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0163 Lost Communication with Navigation Control Module Communication stop occurs between the parking assist ECU and radio receiver assembly continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0233 Lost Communication with Blind Spot Monitor Master Module Communication stop occurs between the parking assist ECU and blind spot monitor sensor LH continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0265 Lost Communication with Image Processing Sensor A Communication stop occurs between the parking assist ECU and rear television camera assembly continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0266* Lost Communication with Image Processing Sensor B Communication stop occurs between the parking assist ECU and side television camera assembly LH continuously for 2 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 7.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 5 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0267* Lost Communication with Image Processing Sensor C Communication stop occurs between the parking assist ECU and front television camera assembly continuously for 2 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 7.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 5 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0268* Lost Communication with Image Processing Sensor D Communication stop occurs between the parking assist ECU and side television camera assembly RH continuously for 2 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 7.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 5 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1000* CAN Communication Failure(Message Registry) A CAN communication function malfunction is detected in the parking assist ECU. Turn the engine switch on (IG). Turn the engine switch on (IG). - The DTC remains stored until it is cleared using the GTS.
      U1110 Lost Communication with Clearance Sonar Module Communication stop occurs between the parking assist ECU and clearance warning ECU assembly continuously for 10 seconds or more.

      All conditions are met:


      • 3 seconds or more elapse after the engine switch is on (IG).

      • The parking assist ECU power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 13 seconds. - The DTC remains stored until it is cleared using the GTS.

      *: Refer to Panoramic View Monitor System

      Click here

    24. Multiplex Tilt and Telescopic ECU (for Power Tilt and Power Telescopic Steering Column) / GTS Display "Tilt&Telescopic"


      Body Electrical > Tilt&Telescopic > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0142 Lost Communication with Body ECU

      Either condition is met:


      • Communication stop occurs between the multiplex tilt and telescopic ECU and main body ECU (multiplex network body ECU) continuously for approximately 4 seconds or more.

      • Communication stop occurs between the multiplex tilt and telescopic ECU and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The multiplex tilt and telescopic ECU power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC is stored only while the malfunction is present.
      U0208 Lost Communication with D-Seat ECU Communication stop occurs between the multiplex tilt and front power seat switch (for driver side) continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The multiplex tilt and telescopic ECU power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC is stored only while the malfunction is present.
      B2624* Vehicles Speed

      Either condition is met:


      • Communication stop occurs between the multiplex tilt and combination meter assembly continuously for 10 seconds or more.

      • With the vehicle speed signal input, the auto control conditions occur 2 times consecutively.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • Vehicle speed is 4 to 10 km/h (2 to 6 mph) or more.

      • The multiplex tilt and telescopic ECU power source voltage is 10 V or higher.

      		 Drive the vehicle for 20 seconds or more at a speed of 4 to 10 km/h (2 to 6 mph). - The DTC is stored only while the malfunction is present.

      *: Refer to Power Tilt And Power Telescopic Steering Column System

      Click here

    25. Outer Mirror Control ECU Assembly RH (w/ Memory) / GTS Display "Mirror R"


      Body Electrical > Mirror R > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0142 Lost Communication With Body Control Module "B" Communication stop occurs between the outer mirror control ECU assembly RH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The outer mirror control ECU assembly RH power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.

    26. Outer Mirror Control ECU Assembly LH (w/ Memory) / GTS Display "Mirror L"


      Body Electrical > Mirror L > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0142 Lost Communication With Body Control Module "B" Communication stop occurs between the outer mirror control ECU assembly LH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).

      • The outer mirror control ECU assembly LH power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 20 seconds. - The DTC remains stored until it is cleared using the GTS.

    27. Parking Brake ECU Assembly / GTS Display "Electric Parking Brake"


      Chassis > Electric Parking Brake > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0073 Control Module Communication Bus OFF The parking brake ECU assembly is continuously unable to send or receive data (bus off condition) for approximately 2 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The parking brake ECU assembly power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 2 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0100 Lost Communication With ECM/PCM "A"

      Either condition is met:


      • Communication stop occurs between the parking brake ECU assembly and ECM continuously for 1 second or more.

      • Communication stop occurs between the parking brake ECU assembly and ECM continuously for 10 seconds or more.

      All conditions are met:


      • The vehicle speed is 15 km/h (9 mph) or more.

      • The parking brake ECU assembly power source voltage is 10 V or higher.

      		 Drive the vehicle for 10 seconds or more at a speed of 15 km/h (9 mph) or more. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0124 Lost Communication With Lateral Acceleration Sensor Module Communication stop occurs between the parking brake ECU assembly and brake actuator assembly (skid control ECU) or parking brake ECU assembly and airbag ECU assembly.

      All conditions are met:


      • The vehicle speed is 7 km/h (4 mph) or more.

      • The parking brake ECU assembly power source voltage is 10 V or higher.

      		 Drive the vehicle at a speed of 7 km/h (4 mph) or more. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication With Brake System Control Module

      Either condition is met:


      • Communication stop occurs between the parking brake ECU assembly and brake actuator assembly (skid control ECU) continuously for 1 second or more.

      • Communication stop occurs between the parking brake ECU assembly and brake actuator assembly (skid control ECU) continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The parking brake ECU assembly power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.

    28. Blind Spot Monitor Sensor (w/ Blind Spot Monitor System) / GTS Display "Blind Spot Monitor Master"


      Body Electrical > Blind Spot Monitor Master > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication with ECM/PCM "A" Communication stop occurs between the blind spot monitor sensor LH and ECM continuously for approximately 11 seconds or more.

      All conditions are met:


      • 1 second elapses after turning the engine switch on (IG).

      • The blind spot monitor sensor LH power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 12 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0125 Lost Communication with Yaw Rate Sensor Module Communication stop occurs between the blind spot monitor sensor LH and airbag ECU assembly continuously for approximately 4 seconds or more.

      All conditions are met:


      • 3 seconds elapses after turning the engine switch on (IG).

      • The blind spot monitor sensor LH power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 12 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication with Steering Angle Sensor Module Communication stop occurs between the blind spot monitor sensor LH and spiral with sensor cable sub-assembly (steering angle sensor) continuously for approximately 11 seconds or more.

      All conditions are met:


      • 1 second elapses after turning the engine switch on (IG).

      • The blind spot monitor sensor LH power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 12 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module Communication stop occurs between the blind spot monitor sensor LH and brake actuator assembly (skid control ECU) continuously for approximately 3 seconds or more.

      All conditions are met:


      • 2 seconds elapse after turning the engine switch on (IG).

      • The blind spot monitor sensor LH power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 5 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication with Body Control Module "B" Communication stop occurs between the blind spot monitor sensor LH and main body ECU (multiplex network body ECU) continuously for approximately 11 seconds or more.

      All conditions are met:


      • 1 second elapses after turning the engine switch on (IG).

      • The blind spot monitor sensor LH power supply voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 12 seconds. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0232* Lost Communication with Blind Spot Monitor Slave Module Communication stop occurs between the blind spot monitor sensor LH and blind spot monitor sensor RH continuously for approximately 12 seconds or more.

      All conditions are met:


      • 1 second elapses after turning the engine switch on (IG).

      • The blind spot monitor main switch is on.

      • The blind spot monitor sensor LH power source voltage is 10 V or higher.

      		 Turn the engine switch on (IG) and turn the blind spot monitor main switch on and wait approximately 13 seconds or more. - The DTC remains stored until it is cleared using the GTS.

      *: Refer to Blind Spot Monitor System.

      Click here

    29. Forward Recognition Camera (w/ Pre-collision System) / GTS Display "LKA/LDA"


      Chassis > LKA/LDA > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication with ECM/PCM "A" Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The vehicle speed is 1 km/h (1 mph) or more.

      • The LDA system is in operation.

      		 Turn the LDA system on, and then the vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0101 Lost Communication with TCM Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The vehicle speed is 1 km/h (1 mph) or more.

      • The LDA system is in operation.

      		 Turn the LDA system on, and then the vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0123 Lost Communication with Yaw Rate Sensor Module Communication stop occurs between the forward recognition camera and airbag ECU assembly continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The vehicle speed is 1 km/h (1 mph) or more.

      • The LDA system is in operation.

      		 Turn the LDA system on, and then the vehicle has been driven for 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication with Steering Angle Sensor Module Communication stop occurs between the forward recognition camera and spiral with sensor cable sub-assembly (steering angle sensor) continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The LDA system is in operation.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module Communication stop occurs between the forward recognition camera and brake actuator assembly (skid control ECU) continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The LDA system is in operation.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0131 Lost Communication with Power Steering Control Module Communication stop occurs between the forward recognition camera and power steering ECU assembly continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The LDA system is in operation.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication with Body Control Module "B" Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The LDA system is in operation.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module Communication stop occurs between the forward recognition camera and combination meter assembly continuously for 50 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The LDA system is in operation.

      		 Wait at least 52 seconds with the IG voltage at 10 V or higher.

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0235* Lost Communication with Cruise Control Front Distance Range Sensor Communication stop occurs between the forward recognition camera and millimeter wave radar sensor assembly continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The LDA system is in operation.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U023A* Lost Communication with Image Processing Module "A" Communication abnormal data between the forward recognition camera and power steering ECU assembly continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The LDA system is in operation.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U1104* Lost Communication with Driving Support ECU Communication stop occurs between the forward recognition camera and driving support ECU assembly continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The LDA system is in operation.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • Lane departure alert indicator light illuminates in yellow.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.

      *: Refer to LDA System

      w/ Steering Control: Click here

    30. Forward Recognition Camera (w/ Pre-collision System) / GTS Display "Front Recognition Camera"


      Chassis > Front Recognition Camera > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication with ECM/PCM "A"

      Either condition is met:


      • Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.

      • While the automatic high beam system is on, the forward recognition camera is continuously unable to receive data from the ECM for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The vehicle speed is 1 km/h (1 mph) or more.

      • The forward recognition camera power source voltage is 10 V or higher.

      		 Turn the AHB system on, the vehicle has been driven for 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher.

      • The PCS OFF indicator light illuminates.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0101 Lost Communication with TCM

      Either condition is met:


      • Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.

      • While the automatic high beam system is on, the forward recognition camera is continuously unable to receive data from the ECM for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The vehicle speed is 1 km/h (1 mph) or more.

      		 Turn the AHB system on, the vehicle has been driven for 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0123 Lost Communication with Yaw Rate Sensor Module

      Either condition is met:


      • Communication stop occurs between the forward recognition camera and airbag ECU assembly continuously for 5 seconds or more.

      • While the automatic high beam system is on, the forward recognition camera is continuously unable to receive data from the airbag sensor assembly for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The vehicle speed is 1 km/h (1 mph) or more.

      		 Turn the AHB system on, the vehicle has been driven for 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher.

      • The PCS OFF indicator light illuminates.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0129 Lost Communication with Brake System Control Module

      Either condition is met:


      • Communication stop occurs between the forward recognition camera and brake actuator assembly (skid control ECU) continuously for 5 seconds or more.

      • While the automatic high beam system is on, the forward recognition camera is continuously unable to receive data from the brake actuator assembly (skid control ECU) for 5 seconds or more.

      		 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG). Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • The PCS OFF indicator light illuminates.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication with Body Control Module "B"

      Either condition is met:


      • Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.

      • While the automatic high beam system is on, the forward recognition camera is continuously unable to receive data from the main body ECU (multiplex network body ECU) for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The forward recognition camera power source voltage is 10 V or higher.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • The PCS OFF indicator light illuminates.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U0182 Lost Communication with Lighting Control Module Front While the automatic high beam system is on, the forward recognition camera is continuously unable to receive data from the headlight ECU sub-assembly LH for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The forward recognition camera power source voltage is 10 V or higher.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher. Displays messages on the multi-information display. The DTC remains stored until it is cleared using the GTS.
      U0235* Lost Communication with Cruise Control Front Distance Range Sensor

      Either condition is met:


      • Communication stop occurs between the forward recognition camera and millimeter wave radar sensor assembly continuously for 5 seconds or more.

      • While the automatic high beam system is on, the forward recognition camera is continuously unable to receive data from the millimeter wave radar sensor assembly (front radar sensor) for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The forward recognition camera power source voltage is 10 V or higher.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • The PCS OFF indicator light illuminates.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.
      U1104* Lost Communication with Driving Support ECU Communication stop occurs between the forward recognition camera and driving support ECU assembly continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The forward recognition camera power source voltage is 10 V or higher.

      		 Wait at least 7 seconds with the IG voltage at 10 V or higher.

      • The PCS OFF indicator light illuminates.

      • Displays messages on the multi-information display.

      		 The DTC remains stored until it is cleared using the GTS.

      *: Refer to Dynamic Radar Cruise Control System

      Click here

    31. Forward Recognition Camera (w/ Road Sign Assist System) / GTS Display "Road Sign Assist"


      Body Electrical > Road Sign Assist > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication with ECM/PCM "A" Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The vehicle speed is 1 km/h (1 mph) or more.

      • The RSA system is on.

      		 Turn the RSA system on, the vehicle has been driven for 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher. Displays messages on the multi-information display. The DTC is stored only while the malfunction is present.
      U0101 Lost Communication with TCM Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The vehicle speed is 1 km/h (1 mph) or more.

      • The RSA system is on.

      		 Turn the RSA system on, the vehicle has been driven for 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher. Displays messages on the multi-information display. The DTC is stored only while the malfunction is present.
      U0123 Lost Communication with Yaw Rate Sensor Module Communication stop occurs between the forward recognition camera is unable to receive certain data from the airbag ECU assembly for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The vehicle speed is 1 km/h (1 mph) or more.

      • The RSA system is on.

      		 Turn the RSA system on, the vehicle has been driven for 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher. Displays messages on the multi-information display. The DTC is stored only while the malfunction is present.
      U0129 Lost Communication with Brake System Control Module Communication stop occurs between the forward recognition camera and brake actuator assembly (skid control ECU) continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The RSA system is on.

      		 Turn the RSA system on, wait at least 7 seconds with the IG voltage at 10 V or higher. Displays messages on the multi-information display. The DTC is stored only while the malfunction is present.
      U0142 Lost Communication with Body Control Module "B" Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The RSA system is on.

      		 Turn the RSA system on, wait at least 7 seconds with the IG voltage at 10 V or higher. Displays messages on the multi-information display. The DTC is stored only while the malfunction is present.
      U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module (Combination Meter) Communication stop occurs between the forward recognition camera and combination meter assembly continuously for 50 seconds or more.

      All conditions are met:


      • 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the engine switch is turned on (IG).

      • The RSA system is on.

      		 Turn the RSA system on, wait at least approximately 52 seconds with the IG voltage at 10 V or higher. Displays messages on the multi-information display. The DTC is stored only while the malfunction is present.

    32. Stereo Component Equalizer Assembly (w/ ASC System) / GTS Display "ASC"


      Body Electrical > ASC > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication With ECM/PCM "A"

      Either condition is met:


      • Communication stop occurs between the stereo component equalizer assembly and ECM continuously for approximately 2 seconds or more.

      • Communication stop occurs between the stereo component equalizer assembly and ECM continuously for approximately 6 seconds or more.

      All conditions are met:


      • 3 seconds elapse after turning the engine switch on (IG).

      • The stereo component equalizer assembly power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 9 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0122 Lost Communication With Vehicle Dynamics Control Module Communication stop occurs between the stereo component equalizer assembly and brake actuator assembly (skid control ECU) continuously for approximately 2 seconds or more.

      All conditions are met:


      • 3 seconds elapse after turning the engine switch on (IG).

      • The stereo component equalizer assembly power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 5 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication With Body Control Module "B" Communication stop occurs between the stereo component equalizer assembly and main body ECU (multiplex network body ECU) continuously for approximately 4 seconds or more.

      All conditions are met:


      • 3 seconds elapse after turning the engine switch on (IG).

      • The stereo component equalizer assembly power supply voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least approximately 7 seconds. - The DTC remains stored until it is cleared using the GTS.

    33. Multiplex Network Door ECU (w/ Power Back Door System) / GTS Display "Back Door"


      Body Electrical > Back Door > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0101 Lost Communication with TCM Communication stop occurs between the multiplex network door ECU and ECM continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The multiplex network door ECU power supply voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0122 Lost Communication with Vehicle Dynamics Control Module Communication stop occurs between the multiplex network door ECU and brake actuator assembly (skid control ECU) continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The multiplex network door ECU power supply voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication With Body Control Module "B" Communication stop occurs between the multiplex network door ECU and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The multiplex network door ECU power supply voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module (Combination Meter) Communication stop occurs between the multiplex network door ECU and combination meter assembly continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The multiplex network door ECU power supply voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0327 Lost Communication with Vehicle Security Control Module Communication stop occurs between the multiplex network door ECU and certification ECU (smart key ECU assembly) continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The multiplex network door ECU power supply voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1117 Lost Communication with Accessory Gateway Communication stop occurs between the multiplex network door ECU and bus buffer ECU continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The multiplex network door ECU power supply voltage is 10.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. - The DTC remains stored until it is cleared using the GTS.

    34. Meter Mirror Sub-assembly (w/ Headup Display) / GTS Display "Headup Display"


      Body Electrical > Head Up Display > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication with ECM/PCM Communication stop occurs between the meter mirror sub-assembly and ECM continuously for 2 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The meter mirror sub-assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 2 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0142 Lost Communication with Body Control Module

      Either condition is met:


      • Communication stop occurs between the meter mirror sub-assembly and main body ECU (multiplex network body ECU) continuously for 3 seconds or more.

      • Communication stop occurs between the meter mirror sub-assembly and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The meter mirror sub-assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0163 Lost Communication with Navigation Control Module Communication stop occurs between the meter mirror sub-assembly and radio receiver assembly continuously for 3 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The meter mirror sub-assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 3 seconds. - The DTC remains stored until it is cleared using the GTS.
      U023A Lost Communication with Image Processing Module "A" Communication stop occurs between the meter mirror sub-assembly and forward recognition camera continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The meter mirror sub-assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1104 Lost Communication with Driving Support ECU Communication stop occurs between the meter mirror sub-assembly and driving support ECU assembly continuously for 10 seconds or more.

      All conditions are met:


      • The engine switch is on (IG).

      • The meter mirror sub-assembly power source voltage is 9.5 V or higher.

      		 Turn the engine switch on (IG) and wait at least 10 seconds. - The DTC remains stored until it is cleared using the GTS.

    35. Rear Television Camera Assembly (w/ Parking Assist Monitor System, w/ Panoramic View Monitor System) / GTS Display "Parking Assist Camera"


      Chassis > Parking Assist Camera > Trouble Codes

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC Detection Item DTC Detection Condition DTC Detection Precondition DTC Check Procedure Warning Indication in Meter DTC Storage Method
      U0100 Lost Communication with ECM/PCM "A" Communication stop occurs between the rear television camera assembly and ECM continuously for 11 seconds or more. 3 seconds or more elapse after the engine switch is on (IG). Turn the engine switch on (IG) and wait at least 14 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0126 Lost Communication with Steering Angle Sensor Module Communication stop occurs between the rear television camera assembly and spiral with sensor cable sub-assembly (steering angle sensor) continuously for 11 seconds or more. 3 seconds or more elapse after the engine switch is on (IG). Turn the engine switch on (IG) and wait at least 14 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0140 Lost Communication with Body Control Module Communication stop occurs between the rear television camera assembly and main body ECU (multiplex network body ECU) continuously for 11 seconds or more. 3 seconds or more elapse after the engine switch is on (IG). Turn the engine switch on (IG) and wait at least 14 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0163 Lost Communication with Navigation Control Module Communication stop occurs between the rear television camera assembly and radio receiver assembly continuously for 11 seconds or more. 3 seconds or more elapse after the engine switch is on (ACC). Turn the engine switch on (ACC) and wait at least 14 seconds. - The DTC remains stored until it is cleared using the GTS.
      U0233 Lost Communication with Blind Spot Monitor Master Module Communication stop occurs between the rear television camera assembly and blind spot monitor sensor LH continuously for 11 seconds or more. 3 seconds or more elapse after the engine switch is on (IG). Turn the engine switch on (IG) and wait at least 14 seconds. - The DTC remains stored until it is cleared using the GTS.
      U1110 Lost Communication with Clearance Sonar Module Communication stop occurs between the rear television camera assembly and clearance warning ECU assembly continuously for 11 seconds or more. 3 seconds or more elapse after the engine switch is on (IG). Turn the engine switch on (IG) and wait at least 14 seconds. - The DTC remains stored until it is cleared using the GTS.

    36. Millimeter Wave Radar Sensor Assembly (w/ Pre-collision System)

      Tech Tips

      The millimeter wave radar sensor assembly is connected to the CAN communication system but CAN communication DTCs are not stored.

    37. Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)

      Tech Tips

      The spiral with sensor cable sub-assembly (steering angle sensor) is connected to the CAN communication system but CAN communication DTCs are not stored.

    38. Front Power Seat Switch (for Driver Side)

      Tech Tips

      The front power seat switch (for Driver Side) is connected to the CAN communication system but CAN communication DTCs are not stored.

    39. Airbag ECU Assembly

      Tech Tips

      The airbag ECU assembly is connected to the CAN communication system but CAN communication DTCs are not stored.

    40. Bus Buffer ECU (w/ Bus Buffer ECU)

      Tech Tips

      The bus buffer ECU is connected to the CAN communication system but CAN communication DTCs are not stored.

    41. Central Gateway ECU (Network Gateway ECU)

      Tech Tips

      The central gateway ECU (network gateway ECU) is connected to the CAN communication system but CAN communication DTCs are not stored.

  5. CAN BUS WAVEFORMS

    B005B5WE02

    Tech Tips


    • The following waveforms are measured between terminals CANH and GND, and terminals CANL and GND of the central gateway ECU (network gateway ECU). (Use this as a reference for diagnosis of CAN communication lines.)

    • When malfunctions in multiple ECUs are suspected based on the CAN bus check and DTCs checked using the GTS, check the resistance of the CAN bus using an ohmmeter first. If no problems are found, check the following waveforms.

      Click here

    • If a waveform is not similar to one of the following 3 patterns (Group 1), then an open in a CAN main bus line, an open in a CAN branch line, or a short between a CAN line (CANH or CANL) and ground is suspected (Group 2).

    • Wiggle the connector and wire harness to check if the waveform changes.


    1. CAN bus waveforms (Group 1)


      1. B005BA0N07
        *a 1 V/DIV.
        *b 50 μs/DIV.

        Normal waveform

      2. B0058MNN05
        *a 1 V/DIV.
        *b 50 μs/DIV.

        Open in both of the lines (CANH and CANL) of a CAN branch

        Tech Tips


        • Waveforms (waveforms shown using dotted lines) are not present from an ECU or sensor connected to a CAN branch with an open circuit in both lines. (Waveforms from other ECUs or sensors are normal.)

        • Because this waveform is similar to a normal waveform, instead of using the waveform, the malfunctioning part can be narrowed down by performing a CAN bus check.

      3. B005AG3N05
        *a 1 V/DIV.
        *b 50 μs/DIV.

        Short between the CAN bus lines (CANH and CANL)

        Tech Tips


        • Waveforms disappear.

        • If the malfunction is in an ECU, disconnecting the ECU will change the waveform. If the waveform does not change, a malfunction in the wire harness is suspected.

    2. CAN bus waveforms (reference) (Group 2)

      Note

      The following CAN bus waveforms can be used only as reference. The actual measured waveform may differ significantly depending on the location of the open or short circuit.


      1. B0058X4N05
        *a 1 V/DIV.
        *b 50 μs/DIV.

        Open in a CAN branch line (CANH)

        Tech Tips


        • An abnormal waveform is output from an ECU with an open in one of its CAN branch lines. Because this abnormal output interferes with the signals from other ECUs, the output of other ECUs will also appear abnormal.

        • Narrow down the malfunctioning part by checking DTCs or performing a CAN bus check, or by checking waveform changes when ECUs or sensors are disconnected. The waveform will change to one for an open in both sides of a CAN branch when the ECU or sensor with an open CAN branch line is disconnected.

      2. B0058KPN05
        *a 1 V/DIV.
        *b 50 μs/DIV.

        Open in a CAN branch line (CANL)

        Tech Tips


        • An abnormal waveform is output from an ECU with an open in one of its CAN branch lines. Because this abnormal output interferes with the signals from other ECUs, the output of other ECUs will also appear abnormal.

        • Narrow down the malfunctioning part by checking DTCs or performing a CAN bus check, or by checking waveform changes when ECUs or sensors are disconnected. The waveform will change to one for an open in both sides of a CAN branch when the ECU or sensor with an open CAN branch line is disconnected.

      3. B005ARAN05
        *a 1 V/DIV.
        *b 50 μs/DIV.

        Open in a CAN main bus line (CANH)

        Tech Tips


        • Waveforms of ECUs or sensors that are closer to the central gateway ECU (network gateway ECU) than the open part are almost normal.

        • Waveforms of ECUs or sensors that are on the opposite side of the central gateway ECU (network gateway ECU) from the open part are abnormal.

        • An open in a CAN main bus line can be confirmed by measuring the resistance between the CANH and CANL terminals of any CAN branch.

      4. B005808N05
        *a 1 V/DIV.
        *b 50 μs/DIV.

        Short between a CAN bus line (CANH) and ground

        Tech Tips


        • Narrow down the shorted part by checking for waveform changes when disconnecting connectors from the CAN junction connectors or when disconnecting ECUs or sensors.

        • A short to ground in the CANH line can be confirmed by measuring the resistance between CANH and ground using an ohmmeter.

      5. B00592AN05
        *a 1 V/DIV.
        *b 50 μs/DIV.

        Short between a CAN bus line (CANL) and ground

        Tech Tips


        • Narrow down the shorted part by checking for waveform changes when disconnecting connectors from the CAN junction connectors or when disconnecting ECUs or sensors.

        • A short to ground in the CANL line can be confirmed by measuring the resistance between CANL and ground using an ohmmeter.

  6. DATA SENDING/RECEIVING TABLE


    1. Data sending/receiving table

      Tech Tips

      If Data List items related to sent/received data are not displayed properly, the part for which communication is interrupted can be determined using the table below.

      Data Content Data Detected and Sent by Data Received by Relevant Data List Item
      Can be Checked in the Data List Cannot be Checked in the Data List Selected System*3 Data List Item
      Accelerator position ECM

      • Brake actuator assembly (skid control ECU)

      • Engine stop and start ECU

      • Stereo component equalizer assembly

      • Clearance warning ECU assembly

      • Radio receiver assembly

      • Parking brake ECU assembly

      • Power steering ECU assembly

      • 4WD ECU assembly

      • Combination meter assembly

      • Driving support ECU assembly

      • Forward recognition camera

      		 Engine Throttle Sensor Position
      ABS/VSC/TRC Accelerator Opening Angle %
      Stop and Start Accelerator Position
      ASC Accelerator Position
      Engine speed ECM

      • Brake actuator assembly (skid control ECU)

      • Combination meter assembly

      • Power steering ECU assembly

      • Absorber control ECU

      • Engine stop and start ECU

      • Certification ECU (smart key ECU assembly)

      • Stereo component equalizer assembly

      • Airbag ECU assembly

      • Air conditioning amplifier assembly

      • Telematics transceiver

      • Radio receiver assembly

      • Main body ECU (multiplex network body ECU)

      • Parking brake ECU assembly

      • 4WD ECU assembly

      • Bus buffer ECU

      • Clearance warning ECU assembly

      		 Engine Engine Speed
      ABS/VSC/TRC Engine Revolutions
      Combination Meter Engine Rpm
      EMPS Engine Rpm
      Air Suspension Engine Speed
      Stop and Start Engine Spd (ECM)
      Starting Control Engine Speed
      ASC Engine Revolution
      Intake air temperature ECM - Brake actuator assembly (skid control ECU) Engine Intake Air Temperature
      Engine coolant temperature ECM

      • Air conditioning amplifier assembly

      • Combination meter assembly

      • Engine stop and start ECU

      • 4WD ECU assembly

      • Radio receiver assembly

      • Certification ECU (smart key ECU assembly)

      		 Engine Coolant Temperature
      Air Conditioner Engine Coolant Temp
      Combination Meter Coolant Temperature
      Stop and Start Coolant Temp
      Four Wheel Drive Engine Coolant Temperature
      Shift position P signal ECM

      • Front power seat switch (for driver side)

      • Parking brake ECU assembly

      • Certification ECU (smart key ECU assembly)

      • Stereo component equalizer assembly

      • Clearance warning ECU assembly

      • Meter mirror sub-assembly

      • Parking assist ECU

      • Multiplex network door ECU

      • Airbag ECU assembly

      • Main body ECU (multiplex network body ECU)

      • Headlight light control ECU sub-assembly LH

      • Radio receiver assembly

      • Combination meter assembly*1

      • Parking assist ECU

      • Telematics transceiver

      • Engine stop and start ECU

      • Bus buffer ECU

      		 Engine Shift SW Status (P Range)
      Driver Seat P Switch
      Electric Parking Brake P Position
      Power Source Control Shift P Signal
      Starting Control Shift Position P or N
      ASC Shift SW Status (P Range)
      IPA/ICS/Clearance Sonar Parking Signal
      Shift position R signal ECM

      • Radio receiver assembly

      • Clearance warning ECU assembly

      • Parking assist ECU

      • Parking brake ECU assembly

      • Stereo component equalizer assembly

      • Blind spot monitor sensor LH

      • Meter mirror sub-assembly

      • Certification ECU (smart key ECU assembly)

      • Rear television camera assembly

      • Airbag ECU assembly

      • Headlight light control ECU sub-assembly LH

      • Main body ECU (multiplex network body ECU)

      • Combination meter assembly*1

      • Driving support ECU assembly

      • Engine stop and start ECU

      • Forward recognition camera

      		 Engine Shift SW Status (R Range)
      Navigation System Reverse Signal
      IPA/ICS/Clearance Sonar Reverse Signal
      Electric Parking Brake R Position
      ASC Shift SW Status (R Range)
      Blind Spot Monitor Master Reverse (Only for AT/CVT)
      Panoramic View Monitor Shift R Position
      Shift position N signal ECM

      • Parking brake ECU assembly

      • Stereo component equalizer assembly

      • Meter mirror sub-assembly

      • Airbag ECU assembly

      • Headlight light control ECU sub-assembly LH

      • Radio receiver assembly

      • Main body ECU (multiplex network body ECU)

      • Combination meter assembly*1

      • Clearance warning ECU assembly

      • Parking assist ECU

      • Engine stop and start ECU

      • Forward recognition camera

      		 Engine Shift SW Status (N Range)
      Electric Parking Brake N Position
      ASC Shift SW Status (N Range)
      Shift position D signal ECM

      • Parking brake ECU assembly

      • Stereo component equalizer assembly

      • Meter mirror sub-assembly

      • Airbag ECU assembly

      • Headlight light control ECU sub-assembly LH

      • Radio receiver assembly

      • Main body ECU (multiplex network body ECU)

      • Combination meter assembly*1

      • Clearance warning ECU assembly

      • Parking assist ECU

      • Engine stop and start ECU

      • Driving support ECU assembly

      		 Engine Shift SW Status (D Range)
      Electric Parking Brake D Position
      ASC Shift SW Status (D Range)
      Stop light switch signal Brake actuator assembly (skid control ECU)

      • 4WD ECU assembly

      • Absorber control ECU

      • Engine stop and start ECU

      • Certification ECU (smart key ECU assembly)

      • Parking brake ECU assembly

      • Clearance warning ECU assembly

      • Driving support ECU assembly

      • Airbag ECU assembly

      • Radio receiver assembly

      • Telematics transceiver

      • Bus buffer ECU

      • Multiplex network door ECU

      		 ABS/VSC/TRC Stop Light SW
      Four Wheel Drive Stop Light SW
      Air Suspension Stop Light Switch
      Stop and Start

      • Stop Light SW (ECM)

      • Stop Light SW (ABS/VSC)
      Power Source Control Stop Light Switch1
      Electric Parking Brake Stop Light Switch
      Wheel speed Brake actuator assembly (skid control ECU)

      • Parking brake ECU assembly

      • 4WD ECU assembly

      • Absorber control ECU

      • Driving support ECU assembly

      • Power steering ECU assembly

      • Radio receiver assembly

      • Clearance warning ECU assembly

      • ECM

      • Airbag ECU assembly

      • Engine stop and start ECU

      • Blind spot monitor sensor LH

      • Forward recognition camera

      • Headlight light control ECU sub-assembly LH

      		 ABS/VSC/TRC

      • FR Wheel Speed

      • FL Wheel Speed

      • RR Wheel Speed

      • RL Wheel Speed
      Electric Parking Brake

      • FR Wheel Speed

      • FL Wheel Speed

      • RR Wheel Speed

      • RL Wheel Speed
      Four Wheel Drive

      • FR Wheel Speed

      • FL Wheel Speed

      • RR Wheel Speed

      • RL Wheel Speed
      Air Suspension

      • FR Wheel Speed

      • FL Wheel Speed

      • RR Wheel Speed

      • RL Wheel Speed
      Radar Cruise1 Cruise Vehicle Speed
      EMPS

      • Wheel Speed Right

      • Wheel Speed Left
      Vehicle speed Brake actuator assembly (skid control ECU)

      • ECM

      • Power steering ECU assembly

      • Combination meter assembly

      • Radio receiver assembly

      • Engine stop and start ECU

      • Parking brake ECU assembly

      • Stereo component equalizer assembly

      • Driving support ECU assembly

      • Airbag ECU assembly

      • Parking assist ECU

      • Main body ECU (multiplex network body ECU)

      • Meter mirror sub-assembly

      • Clearance warning ECU assembly

      • Forward recognition camera

      		 ABS/VSC/TRC Vehicle Speed
      Engine Vehicle Speed
      EMPS

      • Wheel Speed Right

      • Wheel Speed Left
      Combination Meter Vehicle Speed Meter
      Navigation System Vehicle Speed
      Stop and Start Vehicle Spd1 (ABS/VSC)
      Electric Parking Brake Vehicle Speed
      ASC Vehicle Speed
      Blind Spot Monitor Master Vehicle Speed
      Radar Cruise1 Cruise Vehicle Speed
      Combination meter assembly*2

      • Front power seat switch (for driver side)

      • Multiplex tilt and telescopic ECU

      • Air conditioning amplifier assembly

      • Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • Telematics transceiver

      • Bus buffer ECU

      • Multiplex network door ECU

      		 Combination Meter Vehicle Speed Meter
      Driver Seat Vehicle Speed
      Tilt&Telescopic Freeze Speed Info
      Ambient temperature Air conditioning amplifier assembly

      • Combination meter assembly

      • Engine stop and start ECU

      • Parking brake ECU assembly

      • 4WD ECU assembly

      • Meter mirror sub-assembly

      • Clearance warning ECU assembly

      • Forward recognition camera

      • Radio receiver assembly

      • Telematics transceiver

      • Driving support ECU assembly

      • ECM

      • Bus buffer ECU

      		 Air Conditioner Ambient Temp Sensor
      Combination Meter Ambient Temperature
      Stop and Start Ambient Temp Sensor
      Electric Parking Brake Ambient Temperature
      Four Wheel Drive Ambient Temperature
      Yaw rate sensor Airbag ECU assembly

      • Brake actuator assembly (skid control ECU)

      • Driving support ECU assembly

      • 4WD ECU assembly

      • Power steering ECU assembly

      • Forward recognition camera

      • Radio receiver assembly

      • Headlight light control ECU sub-assembly LH

      • Blind spot monitor sensor LH

      		 ABS/VSC/TRC

      • Yaw Rate Sensor

      • Zero Point of Yaw Rate
      Radar Cruise2 Yaw Rate Sensor
      Four Wheel Drive Yaw Rate Value
      Steering angle sensor Spiral with sensor cable sub-assembly (steering angle sensor)

      • Brake actuator assembly (skid control ECU)

      • 4WD ECU assembly

      • Engine stop and start ECU

      • Blind spot monitor sensor LH

      • Rear television camera assembly

      • Clearance warning ECU assembly

      • Driving support ECU assembly

      • ECM

      • Airbag ECU assembly

      • Radio receiver assembly

      • Power steering ECU assembly

      • Parking assist ECU

      • Headlight light control ECU sub-assembly LH

      • Combination meter assembly

      • Absorber control ECU

      • Forward recognition camera

      		 ABS/VSC/TRC

      • Steering Angle Sensor

      • Zero Point of Steering Angle
      Four Wheel Drive Steering Angle Value
      Stop and Start Steering Angle
      Blind Spot Monitor Master Steering Angle
      Seat memory switch Front power seat switch (for driver side) Main body ECU (multiplex network body ECU) - Mirror R Seat Memory Switch1
      Driver door courtesy switch Main body ECU (multiplex network body ECU)

      • Forward recognition camera

      • Multiplex network door ECU

      • Radio receiver assembly

      • Certification ECU (smart key ECU assembly)

      • Combination meter assembly

      • Parking assist ECU

      • Telematics transceiver

      • Engine stop and start ECU

      • Brake actuator assembly (skid control ECU)

      • Bus buffer ECU

      		 Main Body FR Door Courtecy SW
      Front passenger door courtesy switch Main body ECU (multiplex network body ECU) Multiplex network door ECU

      • Radio receiver assembly

      • Certification ECU (smart key ECU assembly)

      • Combination meter assembly

      • Parking assist ECU

      • Telematics transceiver

      • Engine stop and start ECU

      • Bus buffer ECU

      		 Main Body FL Door Courtecy SW
      Rear door courtesy switch Main body ECU (multiplex network body ECU) Multiplex network door ECU

      • Radio receiver assembly

      • Certification ECU (smart key ECU assembly)

      • Combination meter assembly

      • Parking assist ECU

      • Telematics transceiver

      • Bus buffer ECU

      		 Main Body

      • RR Door Courtecy SW

      • RL Door Courtecy SW
      Back door courtesy switch Multiplex network door ECU Main body ECU (multiplex network body ECU) - Back Door Courtecy SW
      Main Body Back Door Courtecy SW
      Main body ECU (multiplex network body ECU) -

      • Radio receiver assembly

      • Telematics transceiver

      • Certification ECU (smart key ECU assembly)

      • Combination meter assembly

      • Rear television camera assembly

      • Parking assist ECU

      		 Main Body Back Door Courtecy SW
      Clearance sonar area infomation Clearance warning ECU assembly -

      • Radio receiver assembly

      • Combination meter assembly

      • Parking assist ECU

      • Rear television camera assembly

      		 IPA/ICS/Clearance Sonar

      • Fr Left Sensor

      • Fr Left Center Sensor

      • Fr Right Center Sensor

      • Fr Right Sensor

      • Rr Left Sensor

      • Rr Left Center Sensor

      • Rr Right Center Sensor

      • Rr Right Sensor
      Meter mirror sub-assembly - IPA/ICS/Clearance Sonar

      • Fr Left Sensor

      • Fr Left Center Sensor

      • Fr Right Center Sensor

      • Fr Right Sensor

      • Rr Left Sensor

      • Rr Left Center Sensor

      • Rr Right Center Sensor

      • Rr Right Sensor

      • *1: Although the received contents cannot be checked in the Data List, whether or not the data is received normally can be checked by observing the combination meter assembly.

      • *2: The combination meter assembly receives a vehicle speed signal from the skid control ECU (brake actuator assembly) and sends the signal to other ECUs.

      • *3: According to the display on the GTS, read the Data List.


        • Enter the following menus: Powertrain / Engine / Data List.

          8AR-FTS (w/ Canister Pump Module): Click here

          8AR-FTS (w/o Canister Pump Module): Click here

          3ZR-FAE: Click here

        • Enter the following menus: Chassis / ABS/VSC/TRC / Data List.

          Click here

        • Enter the following menus: Powertrain / Stop and Start / Data List.

          Click here

        • Enter the following menus: Chassis / EMPS / Data List.

          for Manual Tilt and Manual Telescopic Steering Column: Click here

          for Power Tilt and Power Telescopic Steering Column: Click here

        • Enter the following menus: Body Electrical / Combination Meter / Data List.

          Click here

        • Enter the following menus: Body Electrical / Power Source Control / Data List.

          Click here

        • Enter the following menus: Body Electrical / Air Conditioner / Data List.

          Click here

        • Enter the following menus: Chassis / Electric Parking Brake / Data List.

          Click here

        • Enter the following menus: Powertrain / Radar Cruise2 / Data List.

          Click here

        • Enter the following menus: Body Electrical / Driver Seat / Data List.

          Click here

        • Enter the following menus: Body Electrical / AFS / Data List.

          Click here

        • Enter the following menus: Body Electrical / IPA/ICS/Clearance Sonar / Data List.

          Click here

        • Enter the following menus: Body Electrical / Main Body / Data List.

          Click here

        • Enter the following menus: Body Electrical / Back Door / Data List.

          Click here

        • Enter the following menus: Body Electrical / Tilt & Telescopic / Data List.

          Click here

        • Enter the following menus: Chassis / LKA/LDA / Data List.

          Click here

        • Enter the following menus: Body Electrical / Pre-Collision 2 / Data List.

          Click here