CAN COMMUNICATION SYSTEM(w/o Toyota Safety Sense) DIAGNOSIS SYSTEM


  1. 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.

      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 currently not occurring.

      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 currently not occurring.
      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 currently not occurring.

      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 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, 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 and V bus (the bus that connects the DLC3 to the central 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.

  2. 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 ignition switch ON (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.

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

      B0047FHC02
      *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

      B00458KC02
      *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 currently not occurring.

      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 currently not occurring.
      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 currently not occurring.

      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

      B0045BNC02
      *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 ECU MB has a gateway function and a communication stop in ECU 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

      B004682C02
      *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 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.)

      B0045W9C02
      *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.)

      B0046YJC02
      *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
      B0046V4C02
      *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) is suspected.

      Open in both CAN branch lines in the V bus

      B0045TRC01
      *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.

  3. HOW TO INTERPRET COMMUNICATION DTCS (DTCS THAT START WITH U)


    1. If a CAN communication error cannot be reproduced, determine the suspected malfunctioning part using the DTCs stored in ECUs that are connected to the CAN buses by following the procedure below.

      Tech Tips

      Communication DTCs (DTCs that start with U) indicate a communication error between the ECU that stores the DTC and the ECU that is indicated by the DTC.


      1. If multiple ECUs store a communication DTC for a particular ECU, a communication stop of the ECU is suspected.

        B0045CCC07
        *a Items to be Checked - -

        Note


        • This DTC table is from another model, and is only used here to show an example of DTCs that are output when there is an open in a CAN branch line for the main body ECU. This table does not show DTCs applicable to this vehicle.

        • Even though a DTC title may indicate a communication error with a specific ECU, the ECU name used in the DTC name on the GTS may differ depending on the ECU that stores the DTC. (Regarding output DTCs, refer to the DTC chart for each ECU.)

        Tech Tips

        As multiple ECUs indicate a communication stop with the main body ECU, the possibility of a communication stop of the main body ECU is high.

      2. If almost all of the communication DTCs of an ECU are stored, a communication stop of the ECU is suspected.

        B00467HC05
        *a Items to be Checked - -

        Note


        • This DTC table is from another model, and is only used here to show an example of DTCs that are output when there is an open in a CAN branch line for the main body ECU. This table does not show DTCs applicable to this vehicle.

        • Even though a DTC title may indicate a communication error with a specific ECU, the ECU name used in the DTC name on the GTS may differ depending on the ECU that stores the DTC. (Regarding output DTCs, refer to DTC Table by ECU.)

        Tech Tips


        • If almost all of the DTCs of the main body ECU are stored, the possibility of a communication stop of the main body ECU is high.

        • When a CAN communication error occurs, many DTCs are output. DTCs other than communication error DTCs (such as DTCs that start with C or B) and communication DTCs for the ABS system are important DTCs, however it may be easier to determine the malfunctioning part by examining the overall situation without considering these DTCs.

    2. To help determine the part of the sub bus that has a communication error, prioritize the communication stop DTCs stored in the gateway function equipped ECU.

      B00461ZC11
      *a Items to be Checked *b ECM
      *c Gateway Function Equipped ECU *d Location of Malfunction
      *e Bus *f Sub Bus

      Note

      This DTC table is from another model, and is only used here to show the ECUs connected to both a bus and a sub bus. It shows DTCs output when there is an open in the main bus lines for the ECM on the sub bus. This table does not show DTCs applicable to this vehicle.

      Tech Tips


      • As gateway function equipped ECUs (sub bus monitor ECU) monitor signals from all ECUs that are connected to sub bus, gateway function equipped ECUs can detect ECUs with a communication stop more accurately.

      • When there is a communication stop for the gateway function equipped ECU (gateway), communication with ECUs connected to other buses such as the bus 2 stops. Therefore, communication DTCs for ECUs connected to other buses are also stored.

    3. When any of the following malfunctions occurs, many DTCs are likely to be output from many ECUs. Because of this, it may be difficult to determine the probable malfunctioning part.


      • Short between CAN lines (CANH and CANL)

      • Short between a CAN line (CANH or CANL) and ground

      • Short between a CAN line (CANH or CANL) and +B

      • Open in a CAN branch line (CANH or CANL) of an ECU or sensor

      • Open in a CAN main bus line (CANH or CANL) between 2 ECUs that have a terminating resistor

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


    1. Systems (ECUs and sensors) that use CAN communication vary depending on the optional settings of the vehicle. Check which systems (ECUs and sensors) are installed on the vehicle.

      ECU/Sensor Name Tester Display Installed on
      Air conditioning amplifier assembly Air Conditioning Amplifier w/ Air Conditioning System or PTC Heater
      Center airbag sensor assembly Airbag All vehicles
      Combination meter assembly Combination Meter All vehicles
      Radio and Display Receiver Assembly Display and Navigation (AVN1) w/ Display
      ECM ECM (Engine) All vehicles
      Certification ECU (smart key ECU assembly) Entry & Start / Wireless Tuner w/ Entry and Start System
      Main body ECU (multiplex network body ECU) Main Body All vehicles
      Engine stop and start ECU Stop and Go/Start w/ Stop and Start System
      Power steering ECU assembly Power Steering (EPS) All vehicles
      Skid control ECU (brake actuator assembly) Skid Control (ABS/VSC/TRC) All vehicles
      Steering angle sensor (spiral cable sub-assembly) Spiral cable (Steering Angle Sensor) w/ VSC
      Option connector (bus buffer ECU) - for GRMN
      Network gateway ECU - for GRMN
  5. DTC TABLE BY ECU

    Tech Tips


    • In the CAN communication system, CAN communication system DTCs stored by the ECU can be output from the ECU by using the GTS.

    • If CAN communication system DTCs are output, the trouble cannot be determined solely from the DTCs. Perform troubleshooting according to "How to Proceed with Troubleshooting".


    1. ECM (except GRMN)

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0129 Lost Communication with Brake System Control Module
      U1103*1 Lost Communication with Stop and Start Control Module

      • *1: w/ Stop and Start System

    2. ECM (for GRMN)

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0151 Lost Communication with Airbag ECU
    3. MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0100 Lost Communication with ECM/PCM "A"
      U0101 Lost Communication with TCM
      U0120 Lost Communication with Starter/Generator Control Module
      U0151 Lost Communication with Restraints Control Module
      U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module
      U0164 Lost Communication with HVAC Control Module
      U0327 Software Incompatibility with Vehicle Security Control Module
    4. SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (w/ VSC)

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0073 Control Module Communication Bus Off
      U0100 Lost Communication with ECM/PCM "A"
      U0124 Lost Communication with Lateral Acceleration Sensor Module
      U0126 Lost Communication with Steering Angle Sensor Module
    5. SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (w/o VSC)

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0073 Control Module Communication Bus Off
    6. POWER STEERING ECU ASSEMBLY

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0100 Lost Communication with ECM/PCM "A"
      U0129 Lost Communication with Brake System Control Module
    7. COMBINATION METER ASSEMBLY

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0100 Lost Communication with ECM/PCM "A"
      U0129 Lost Communication with Brake System Control Module
      U0131 Lost Communication with Power Steering Control Module
      U0142 Communication with Body Control Module "B"
      U0151 Lost Communication with Restraints Control Module
    8. RADIO AND DISPLAY RECEIVER ASSEMBLY (w/ Display)

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0073 Control Module Communication Bus Off
      U0100 Lost Communication with ECM/PCM "A"
      U0129 Lost Communication with Brake System Control Module
      U0140 Lost Communication with Main Body ECU
      U0155 Lost Communication with Combination Meter
      U0164 Lost Communication with HVAC control Module
    9. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry and Start System)

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0100 Lost Communication with ECM/PCM "A"
      U0140 Lost Communication with Body Control Module
      U0142 Lost Communication with Body Control Module "B"
      U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module
      U1103 Lost Communication with Stop and Start Control Module
    10. AIR CONDITIONING AMPLIFIER ASSEMBLY (w/ Air Conditioning System or PTC Heater)

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0100 Lost Communication with ECM/PCM "A"
      U0131 Lost Communication with Power Steering Control Module
      U0142 Lost Communication with Body Control Module "B"
      U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module
    11. ENGINE STOP AND START ECU (w/ Stop and Start System)

      Tech Tips

      DTC communication uses the CAN communication system.

      DTC No. Detection Item
      U0100 Lost Communication with ECM/PCM "A"
      U0121 Lost Communication with Anti-Lock Brake System (ABS) Control Module
      U0126 Lost Communication with Steering Angle Sensor Module
      U0131 Lost Communication with Power Steering Control Module
      U0140 Lost Communication with J/B ECU
      U0151 Lost Communication with SRS Airbag ECU
      U0155 Lost Communication with Instrument Panel Cluster Control Module (Combination Meter)
      U0164 Lost Communication with HVAC Control Module
    12. STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) (w/ VSC)

      Tech Tips

      The steering angle sensor (spiral cable sub-assembly) is connected to the CAN communication system but CAN communication DTCs are not stored.

    13. CENTER AIRBAG SENSOR ASSEMBLY

      Tech Tips

      The center airbag sensor assembly is connected to the CAN communication system but CAN communication DTCs are not stored.

    14. NETWORK GATEWAY ECU (for GRMN)

      Tech Tips

      The network gateway ECU to the CAN communication system but CAN communication DTCs are not stored.

    15. OPTION CONNECTOR (BUS BUFFER ECU) (for GRMN)

      Tech Tips

      The option connector (bus buffer ECU) to the CAN communication system but CAN communication DTCs are not stored.

  6. DTC COMBINATION TABLE

    for LHD
    Trouble Mode (Open in One CAN Branch Line)
    Output ECU Output DTC

    Air Conditioning Amplifier Communication Stop Mode Click here

    Center Airbag Sensor Communication Stop Mode Click here

    Audio Receiver Assembly Communication Stop Mode Click here

    Main Body ECU Communication Stop Mode Click here

    V Bus Air Conditioning Amplifier Assembly U0100 X
    U0131 X
    U0142 X X
    U0155 X
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 X
    U0129 X
    U0140 X X
    U0155 X
    U0164 X X
    Main Body ECU (Multiplex Network Body ECU) U0100 X
    U0101 X
    U0120 X
    U0151 X X
    U0155 X
    U0164 X X
    U0327 X
    Engine Stop and Start ECU U0100
    U0121
    U0126
    U0131
    U0140 X
    U0151 X
    U0155
    U0164 X
    ECM*1 U0129
    U1103
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100
    U0142 X
    U0155
    U1103
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100
    U0140 X
    U0155
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100
    Power Steering ECU Assembly U0100
    U0129
    Combination Meter Assembly U0100
    U0129
    U0131
    U0142 X
    U0151 X
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100
    U0124 X
    U0126
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 X

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • X: DTC is likely to be output.

    • ▲: DTC is not likely to be output.

    • -: DTC is not output.

    • *1: U0073 may be stored when communication is lost.

    for LHD
    Trouble Mode (Open in One CAN Branch Line)
    Output ECU Output DTC

    Engine Stop and Start ECU Communication Stop Mode Click here

    Certification ECU Communication Stop Mode Click here

    Power Steering ECU Communication Stop Mode Click here

    Steering Angle Sensor Communication Stop Mode Click here

    V Bus Air Conditioning Amplifier Assembly U0100
    U0131
    U0142
    U0155
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100
    U0129
    U0140
    U0155
    U0164
    Main Body ECU (Multiplex Network Body ECU) U0100
    U0101
    U0120 X
    U0151
    U0155
    U0164
    U0327 X
    Engine Stop and Start ECU U0100 X
    U0121 X
    U0126 X X
    U0131 X X
    U0140 X
    U0151 X
    U0155 X
    U0164 X
    ECM*1 U0129
    U1103 X
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 X
    U0142 X
    U0155 X
    U1103 X X
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 X
    U0140 X
    U0155 X
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 X
    Power Steering ECU Assembly U0100 X
    U0129 X
    Combination Meter Assembly U0100
    U0129
    U0131 X
    U0142
    U0151
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100
    U0124
    U0126 X
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • X: DTC is likely to be output.

    • ▲: DTC is not likely to be output.

    • -: DTC is not output.

    for LHD
    Trouble Mode (Open in One CAN Branch Line)
    Output ECU Output DTC

    Brake Actuator (Skid Control ECU) Communication Stop Mode Click here

    ABS and Traction Actuator (Skid Control ECU) Communication Stop Mode Click here

    Bus Buffer ECU Communication Stop Mode

    Click here

    DLC3
    V Bus Air Conditioning Amplifier Assembly U0100 -
    U0131 -
    U0142 -
    U0155 -
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 -
    U0129 X X -
    U0140 -
    U0155 -
    U0164 -
    Main Body ECU (Multiplex Network Body ECU) U0100 -
    U0101 -
    U0120 -
    U0151 -
    U0155 -
    U0164 -
    U0327 -
    Engine Stop and Start ECU U0100 -
    U0121 X X -
    U0126 -
    U0131 -
    U0140 -
    U0151 -
    U0155 -
    U0164 -
    ECM*1 U0129 X X -
    U1103 -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 -
    U0142 -
    U0155 -
    U1103 -
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 -
    U0140 -
    U0155 -
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 -
    Power Steering ECU Assembly U0100 -
    U0129 X X -
    Combination Meter Assembly U0100 -
    U0129 X X -
    U0131 -
    U0142 -
    U0151 -
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 X X -
    U0124 X X -
    U0126 X X -
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 -

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • X: DTC is likely to be output.

    • ▲: DTC is not likely to be output.

    • -: DTC is not output.

    for LHD
    Trouble Mode (Open in Both CAN Branch Lines)
    Output ECU Output DTC

    Air Conditioning Amplifier Communication Stop Mode Click here

    Center Airbag Sensor Communication Stop Mode Click here

    Audio Receiver Assembly Communication Stop Mode Click here

    Main Body ECU Communication Stop Mode Click here

    V Bus Air Conditioning Amplifier Assembly U0100 - - -
    U0131 - - -
    U0142 - -
    U0155 - - -
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 - - -
    U0129 - - -
    U0140 - -
    U0155 - - -
    U0164 - -
    Main Body ECU (Multiplex Network Body ECU) U0100 - - -
    U0101 - - -
    U0120 - - -
    U0151 - -
    U0155 - - -
    U0164 - -
    U0327 - - -
    Engine Stop and Start ECU U0100 - - - -
    U0121 - - - -
    U0126 - - - -
    U0131 - - - -
    U0140 - - -
    U0151 - - -
    U0155 - - - -
    U0164 - - -
    ECM*1 U0129 - - - -
    U1103 - - - -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 - - - -
    U0142 - - -
    U0155 - - - -
    U1103 - - - -
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 - - - -
    U0140 - - -
    U0155 - - - -
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 - - - -
    Power Steering ECU Assembly U0100 - - - -
    U0129 - - - -
    Combination Meter Assembly U0100 - - - -
    U0129 - - - -
    U0131 - - - -
    U0142 - - -
    U0151 - - -
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 - - - -
    U0124 - - -
    U0126 - - - -
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 - - -

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • ○ : DTC is output.

    • -: DTC is not output.

    for LHD
    Trouble Mode (Open in Both CAN Branch Lines)
    Output ECU Output DTC

    Engine Stop and Start ECU Communication Stop Mode Click here

    Certification ECU Communication Stop Mode Click here

    Power Steering ECU Communication Stop Mode Click here

    Steering Angle Sensor Communication Stop Mode Click here

    V Bus Air Conditioning Amplifier Assembly U0100 - - - -
    U0131 - - - -
    U0142 - - - -
    U0155 - - - -
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 - - - -
    U0129 - - - -
    U0140 - - - -
    U0155 - - - -
    U0164 - - - -
    Main Body ECU (Multiplex Network Body ECU) U0100 - - - -
    U0101 - - - -
    U0120 - - -
    U0151 - - - -
    U0155 - - - -
    U0164 - - - -
    U0327 - - -
    Engine Stop and Start ECU U0100 - - -
    U0121 - - -
    U0126 - -
    U0131 - -
    U0140 - - -
    U0151 - - -
    U0155 - - -
    U0164 - - -
    ECM*1 U0129 - - - -
    U1103 - - -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 - - -
    U0142 - - -
    U0155 - - -
    U1103 - -
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 - - -
    U0140 - - -
    U0155 - - -
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 - - -
    Power Steering ECU Assembly U0100 - - -
    U0129 - - -
    Combination Meter Assembly U0100 - - - -
    U0129 - - - -
    U0131 - - -
    U0142 - - - -
    U0151 - - - -
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 - - - -
    U0124 - - - -
    U0126 - - -
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 - - - -

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • ○ : DTC is output.

    • -: DTC is not output.

    for LHD
    Trouble Mode (Open in Both CAN Branch Lines)
    Output ECU Output DTC

    Brake Actuator (Skid Control ECU) Communication Stop Mode Click here

    ABS and Traction Actuator (Skid Control ECU) Communication Stop Mode Click here

    Bus Buffer ECU Communication Stop Mode

    Click here

    DLC3
    V Bus Air Conditioning Amplifier Assembly U0100 - - - -
    U0131 - - - -
    U0142 - - - -
    U0155 - - - -
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 - - - -
    U0129 - -
    U0140 - - - -
    U0155 - - - -
    U0164 - - - -
    Main Body ECU (Multiplex Network Body ECU) U0100 - - - -
    U0101 - - - -
    U0120 - - - -
    U0151 - - - -
    U0155 - - - -
    U0164 - - - -
    U0327 - - - -
    Engine Stop and Start ECU U0100 - - - -
    U0121 - -
    U0126 - - - -
    U0131 - - - -
    U0140 - - - -
    U0151 - - - -
    U0155 - - - -
    U0164 - - - -
    ECM*1 U0129 - -
    U1103 - - - -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 - - - -
    U0142 - - - -
    U0155 - - - -
    U1103 - - - -
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 - - - -
    U0140 - - - -
    U0155 - - - -
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 - - - -
    Power Steering ECU Assembly U0100 - - - -
    U0129 - -
    Combination Meter Assembly U0100 - - - -
    U0129 - -
    U0131 - - - -
    U0142 - - - -
    U0151 - - - -
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 - -
    U0124 - -
    U0126 - -
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 - - - -

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • ○ : DTC is output.

    • -: DTC is not output.

    for LHD
    Trouble Mode (Open in One CAN Main Bus Line)
    Output ECU Output DTC

    Combination Meter ECU Communication Stop Mode Click here

    No. 1 Junction Connector

    ECM Communication Stop Mode*1 Click here

    Network Gateway ECU Communication Stop Mode*2

    Click here

    V Bus Air Conditioning Amplifier Assembly U0100 X X X
    U0131 X
    U0142 X
    U0155 X
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 X X X
    U0129 X
    U0140 X
    U0155 X
    U0164
    Main Body ECU (Multiplex Network Body ECU) U0100 X X
    U0101 X X
    U0120
    U0151 X
    U0155 X X
    U0164 X
    U0327 X
    Engine Stop and Start ECU U0100 X X
    U0121
    U0126 X
    U0131
    U0140
    U0151
    U0155 X X
    U0164 X
    ECM*1 U0129 X -
    U1103 X -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 X X X
    U0142 X
    U0155 X
    U1103 X
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 X X X
    U0140 X
    U0155 X
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 X
    Power Steering ECU Assembly U0100 X X
    U0129
    Combination Meter Assembly U0100 X X X X
    U0129 X X
    U0131 X X
    U0142 X X
    U0151 X
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 X X
    U0124 X
    U0126 X
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 - X

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • X: DTC is likely to be output.

    • ▲: DTC is not likely to be output.

    • -: DTC is not output.

    for LHD
    Trouble Mode (Open in Both CAN Main Bus Lines)
    Output ECU Output DTC

    Combination Meter ECU Communication Stop Mode Click here

    No. 1 Junction Connector

    ECM Communication Stop Mode*1 Click here

    Network Gateway ECU Communication Stop Mode*2

    Click here

    V Bus Air Conditioning Amplifier Assembly U0100 -
    U0131 - - -
    U0142 - - -
    U0155 - - -
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 -
    U0129 - - -
    U0140 - - -
    U0155 - - -
    U0164 - - - -
    Main Body ECU (Multiplex Network Body ECU) U0100 - -
    U0101 - -
    U0120 - - -
    U0151 - - -
    U0155 - -
    U0164 - - -
    U0327 - - -
    Engine Stop and Start ECU U0100 - -
    U0121 - - - -
    U0126 - - -
    U0131 - - - -
    U0140 - - - -
    U0151 - - - -
    U0155 - -
    U0164 - - -
    ECM*1 U0129 - - -
    U1103 - - -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 -
    U0142 - - -
    U0155 - - -
    U1103 - - -
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 -
    U0140 - - -
    U0155 - - -
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 - - -
    Power Steering ECU Assembly U0100 - -
    U0129 - - - -
    Combination Meter Assembly U0100
    U0129 - -
    U0131 - -
    U0142 - -
    U0151 - - -
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 - -
    U0124 - - -
    U0126 - - -
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 - - -

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • ○ : DTC is output.

    • -: DTC is not output.

    for LHD
    Trouble Mode (CAN Bus Line Short Circuit) Trouble Mode (CAN Bus Line Short to GND)
    Output ECU Output DTC CANH to CANL CANH to GND CANL to GND
    V Bus Air Conditioning Amplifier Assembly U0100
    U0131
    U0142
    U0155
    Center Airbag Sensor Assembly - - - -
    Radio and Display Receiver Assembly*3 U0100
    U0129
    U0140
    U0155
    U0164
    Main Body ECU (Multiplex Network Body ECU) U0100
    U0101
    U0120
    U0151
    U0155
    U0164
    U0327
    Engine Stop and Start ECU U0100
    U0121
    U0126
    U0131
    U0140
    U0151
    U0155
    U0164
    ECM*1 U0129
    U1103
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100
    U0142
    U0155
    U1103
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100
    U0140
    U0155
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100
    Power Steering ECU Assembly U0100
    U0129
    Combination Meter Assembly U0100
    U0129
    U0131
    U0142
    U0151
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100
    U0124
    U0126
    Network Gateway ECU*2 - - - -
    Option Connector (Bus buffer ECU)*2 - - - -
    Local Bus ECM*2 U0151

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • ○ : DTC is output.

    • -: DTC is not output.

    for RHD
    Trouble Mode (Open in One CAN Branch Line)
    Output ECU Output DTC

    Air Conditioning Amplifier Communication Stop Mode Click here

    Center Airbag Sensor Communication Stop Mode Click here

    Audio Receiver Assembly Communication Stop Mode Click here

    Main Body ECU Communication Stop Mode Click here

    V Bus Air Conditioning Amplifier Assembly U0100 X
    U0131 X
    U0142 X X
    U0155 X
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 X
    U0129 X
    U0140 X X
    U0155 X
    U0164 X X
    Main Body ECU (Multiplex Network Body ECU) U0100 X
    U0101 X
    U0120 X
    U0151 X X
    U0155 X
    U0164 X X
    U0327 X
    Engine Stop and Start ECU U0100
    U0121
    U0126
    U0131
    U0140 X
    U0151 X
    U0155
    U0164 X
    ECM*1 U0129
    U1103
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100
    U0142 X
    U0155
    U1103
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100
    U0140 X
    U0155
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100
    Power Steering ECU Assembly U0100
    U0129
    Combination Meter Assembly U0100
    U0129
    U0131
    U0142 X
    U0151 X
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100
    U0124 X
    U0126
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 X

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • X: DTC is likely to be output.

    • ▲: DTC is not likely to be output.

    • -: DTC is not output.

    for RHD
    Trouble Mode (Open in One CAN Branch Line)
    Output ECU Output DTC

    Engine Stop and Start ECU Communication Stop Mode Click here

    Certification ECU Communication Stop Mode Click here

    Power Steering ECU Communication Stop Mode Click here

    Steering Angle Sensor Communication Stop Mode Click here

    V Bus Air Conditioning Amplifier Assembly U0100
    U0131
    U0142
    U0155
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100
    U0129
    U0140
    U0155
    U0164
    Main Body ECU (Multiplex Network Body ECU) U0100
    U0101
    U0120 X
    U0151
    U0155
    U0164
    U0327 X
    Engine Stop and Start ECU U0100 X
    U0121 X
    U0126 X X
    U0131 X X
    U0140 X
    U0151 X
    U0155 X
    U0164 X
    ECM*1 U0129
    U1103 X
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 X
    U0142 X
    U0155 X
    U1103 X X
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 X
    U0140 X
    U0155 X
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 X
    Power Steering ECU Assembly U0100 X
    U0129 X
    Combination Meter Assembly U0100
    U0129
    U0131 X
    U0142
    U0151
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100
    U0124
    U0126 X
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • X: DTC is likely to be output.

    • ▲: DTC is not likely to be output.

    • -: DTC is not output.

    for RHD
    Trouble Mode (Open in One CAN Branch Line)
    Output ECU Output DTC

    Brake Actuator (Skid Control ECU) Communication Stop Mode Click here

    ABS and Traction Actuator (Skid Control ECU) Communication Stop Mode Click here

    Bus Buffer ECU Communication Stop Mode

    Click here

    DLC3
    V Bus Air Conditioning Amplifier Assembly U0100 -
    U0131 -
    U0142 -
    U0155 -
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 -
    U0129 X X -
    U0140 -
    U0155 -
    U0164 -
    Main Body ECU (Multiplex Network Body ECU) U0100 -
    U0101 -
    U0120 -
    U0151 -
    U0155 -
    U0164 -
    U0327 -
    Engine Stop and Start ECU U0100 -
    U0121 X X -
    U0126 -
    U0131 -
    U0140 -
    U0151 -
    U0155 -
    U0164 -
    ECM*1 U0129 X X -
    U1103 -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 -
    U0142 -
    U0155 -
    U1103 -
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 -
    U0140 -
    U0155 -
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 -
    Power Steering ECU Assembly U0100 -
    U0129 X X -
    Combination Meter Assembly U0100 -
    U0129 X X -
    U0131 -
    U0142 -
    U0151 -
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 X X -
    U0124 X X -
    U0126 X X -
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 -

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • X: DTC is likely to be output.

    • ▲: DTC is not likely to be output.

    • -: DTC is not output.

    for RHD
    Trouble Mode (Open in Both CAN Branch Lines)
    Output ECU Output DTC

    Air Conditioning Amplifier Communication Stop Mode Click here

    Center Airbag Sensor Communication Stop Mode Click here

    Audio Receiver Assembly Communication Stop Mode Click here

    Main Body ECU Communication Stop Mode Click here

    V Bus Air Conditioning Amplifier Assembly U0100 - - -
    U0131 - - -
    U0142 - -
    U0155 - - -
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 - - -
    U0129 - - -
    U0140 - -
    U0155 - - -
    U0164 - -
    Main Body ECU (Multiplex Network Body ECU) U0100 - - -
    U0101 - - -
    U0120 - - -
    U0151 - -
    U0155 - - -
    U0164 - -
    U0327 - - -
    Engine Stop and Start ECU U0100 - - - -
    U0121 - - - -
    U0126 - - - -
    U0131 - - - -
    U0140 - - -
    U0151 - - -
    U0155 - - - -
    U0164 - - -
    ECM*1 U0129 - - - -
    U1103 - - - -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 - - - -
    U0142 - - -
    U0155 - - - -
    U1103 - - - -
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 - - - -
    U0140 - - -
    U0155 - - - -
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 - - - -
    Power Steering ECU Assembly U0100 - - - -
    U0129 - - - -
    Combination Meter Assembly U0100 - - - -
    U0129 - - - -
    U0131 - - - -
    U0142 - - -
    U0151 - - -
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 - - - -
    U0124 - - -
    U0126 - - - -
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 - - -

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • ○ : DTC is output.

    • -: DTC is not output.

    for RHD
    Trouble Mode (Open in Both CAN Branch Lines)
    Output ECU Output DTC

    Engine Stop and Start ECU Communication Stop Mode Click here

    Certification ECU Communication Stop Mode Click here

    Power Steering ECU Communication Stop Mode Click here

    Steering Angle Sensor Communication Stop Mode Click here

    V Bus Air Conditioning Amplifier Assembly U0100 - - - -
    U0131 - - - -
    U0142 - - - -
    U0155 - - - -
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 - - - -
    U0129 - - - -
    U0140 - - - -
    U0155 - - - -
    U0164 - - - -
    Main Body ECU (Multiplex Network Body ECU) U0100 - - - -
    U0101 - - - -
    U0120 - - -
    U0151 - - - -
    U0155 - - - -
    U0164 - - - -
    U0327 - - -
    Engine Stop and Start ECU U0100 - - -
    U0121 - - -
    U0126 - -
    U0131 - -
    U0140 - - -
    U0151 - - -
    U0155 - - -
    U0164 - - -
    ECM*1 U0129 - - - -
    U1103 - - -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 - - -
    U0142 - - -
    U0155 - - -
    U1103 - -
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 - - -
    U0140 - - -
    U0155 - - -
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 - - -
    Power Steering ECU Assembly U0100 - - -
    U0129 - - -
    Combination Meter Assembly U0100 - - - -
    U0129 - - - -
    U0131 - - -
    U0142 - - - -
    U0151 - - - -
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 - - - -
    U0124 - - - -
    U0126 - - -
    Network Gateway ECU*2 - - - - -
    Option connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 - - - -

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • ○ : DTC is output.

    • -: DTC is not output.

    for RHD
    Trouble Mode (Open in Both CAN Branch Lines)
    Output ECU Output DTC

    Brake Actuator (Skid Control ECU) Communication Stop Mode Click here

    ABS and Traction Actuator (Skid Control ECU) Communication Stop Mode Click here

    Bus Buffer ECU Communication Stop Mode

    Click here

    DLC3
    V Bus Air Conditioning Amplifier Assembly U0100 - - - -
    U0131 - - - -
    U0142 - - - -
    U0155 - - - -
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 - - - -
    U0129 - -
    U0140 - - - -
    U0155 - - - -
    U0164 - - - -
    Main Body ECU (Multiplex Network Body ECU) U0100 - - - -
    U0101 - - - -
    U0120 - - - -
    U0151 - - - -
    U0155 - - - -
    U0164 - - - -
    U0327 - - - -
    Engine Stop and Start ECU U0100 - - - -
    U0121 - -
    U0126 - - - -
    U0131 - - - -
    U0140 - - - -
    U0151 - - - -
    U0155 - - - -
    U0164 - - - -
    ECM*1 U0129 - -
    U1103 - - - -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 - - - -
    U0142 - - - -
    U0155 - - - -
    U1103 - - - -
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 - - - -
    U0140 - - - -
    U0155 - - - -
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 - - - -
    Power Steering ECU Assembly U0100 - - - -
    U0129 - -
    Combination Meter Assembly U0100 - - - -
    U0129 - -
    U0131 - - - -
    U0142 - - - -
    U0151 - - - -
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 - -
    U0124 - -
    U0126 - -
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 - - - -

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • ○ : DTC is output.

    • -: DTC is not output.

    for RHD
    Trouble Mode (Open in One CAN Main Bus Line)
    Output ECU Output DTC

    Combination Meter ECU Communication Stop Mode Click here

    No. 1 Junction Connector

    ECM Communication Stop Mode*1 Click here

    Network Gateway ECU Communication Stop Mode*2

    Click here

    V Bus Air Conditioning Amplifier Assembly U0100 X X X
    U0131
    U0142 X
    U0155 X
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 X X X
    U0129 X
    U0140 X
    U0155 X X
    U0164
    Main Body ECU (Multiplex Network Body ECU) U0100 X X
    U0101 X X
    U0120 X
    U0151 X
    U0155 X X
    U0164 X
    U0327 X
    Engine Stop and Start ECU U0100 X X
    U0121
    U0126 X
    U0131 X
    U0140
    U0151
    U0155 X X
    U0164 X
    ECM*1 U0129 X -
    U1103 X -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 X X X
    U0142 X
    U0155 X
    U1103 X
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 X X X
    U0140 X
    U0155 X
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 X
    Power Steering ECU Assembly U0100 X X X
    U0129 X
    Combination Meter Assembly U0100 X X X X
    U0129 X X
    U0131 X
    U0142 X
    U0151 X
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 X X
    U0124 X
    U0126 X
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 - X

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • X: DTC is likely to be output.

    • ▲: DTC is not likely to be output.

    • -: DTC is not output.

    for RHD
    Trouble Mode (Open in Both CAN Main Bus Lines)
    Output ECU Output DTC

    Combination Meter ECU Communication Stop Mode Click here

    No. 1 Junction Connector

    ECM Communication Stop Mode*1 Click here

    Network Gateway ECU Communication Stop Mode*2

    Click here

    V Bus Air Conditioning Amplifier Assembly U0100 -
    U0131 - - - -
    U0142 - - -
    U0155 - - -
    Center Airbag Sensor Assembly - - - - -
    Radio and Display Receiver Assembly*3 U0100 -
    U0129 - - -
    U0140 - - -
    U0155 - -
    U0164 - - - -
    Main Body ECU (Multiplex Network Body ECU) U0100 - -
    U0101 - -
    U0120 - - -
    U0151 - - -
    U0155 - -
    U0164 - - -
    U0327 - - -
    Engine Stop and Start ECU U0100 - -
    U0121 - - - -
    U0126 - - -
    U0131 - - -
    U0140 - - - -
    U0151 - - - -
    U0155 - -
    U0164 - - -
    ECM*1 U0129 - - -
    U1103 - - -
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100 -
    U0142 - - -
    U0155 - - -
    U1103 - - -
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100 -
    U0140 - - -
    U0155 - - -
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100 - - -
    Power Steering ECU Assembly U0100 -
    U0129 - - -
    Combination Meter Assembly U0100
    U0129 - -
    U0131 - - -
    U0142 - -
    U0151 - - -
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100 - -
    U0124 - - -
    U0126 - - -
    Network Gateway ECU*2 - - - - -
    Option Connector (Bus buffer ECU)*2 - - - - -
    Local Bus ECM*2 U0151 - - -

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • ○ : DTC is output.

    • -: DTC is not output.

    for RHD
    Trouble Mode (CAN Bus Line Short Circuit) Trouble Mode (CAN Bus Line Short to GND)
    Output ECU Output DTC CANH to CANL CANH to GND CANL to GND
    V Bus Air Conditioning Amplifier Assembly U0100
    U0131
    U0142
    U0155
    Center Airbag Sensor Assembly - - - -
    Radio and Display Receiver Assembly*3 U0100
    U0129
    U0140
    U0155
    U0164
    Main Body ECU (Multiplex Network Body ECU) U0100
    U0101
    U0120
    U0151
    U0155
    U0164
    U0327
    Engine Stop and Start ECU U0100
    U0121
    U0126
    U0131
    U0140
    U0151
    U0155
    U0164
    ECM*1 U0129
    U1103
    Certification ECU (Smart Key ECU Assembly) (Entry function) U0100
    U0142
    U0155
    U1103
    Certification ECU (Smart Key ECU Assembly) (Power source switching function) U0100
    U0140
    U0155
    Certification ECU (Smart Key ECU Assembly) (Start function) U0100
    Power Steering ECU Assembly U0100
    U0129
    Combination Meter Assembly U0100
    U0129
    U0131
    U0142
    U0151
    Steering Angle Sensor (Spiral Cable Sub-assembly - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/o VSC)*3 - - - -
    Skid Control ECU (Brake Actuator Assembly) (w/ VSC)*3 U0100
    U0124
    U0126
    Network Gateway ECU*2 - - - -
    Option Connector (Bus buffer ECU)*2 - - - -
    Local Bus ECM*2 U0151

    • *1: except GRMN

    • *2: for GRMN

    Tech Tips


    • *3: U0073 may be stored when communication is lost.

    • ○ : DTC is output.

    • -: DTC is not output.