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

BUS CHECK (COMMUNICATION MALFUNCTION ECU)

Only CAN communication system DTCs for each ECU can be output to the intelligent tester.

1. 

   Select "Bus Check" from the "System Select" screen on the intelligent tester.

2. 

   Select "Communication Malfunction DTC" from the "Bus Check" screen, and then select "Enter".

3. 

   Select the system of the DTC to be checked and select "Details".

4. 

   CAN communication system DTCs are output.

BUS CHECK (COMMUNICATION BUS CHECK)

1. 

   Select "Communication Bus Check" from the "Bus Check" screen.

2. The screen displays the ECUs and sensors that are properly connected to the CAN communication system.

   Tip:
   

   • If any properly connected ECUs or sensors are not displayed, there is a communication stop in the system (Click here).

   • 

     The default item displayed in the combo box is "ALL". When checking the ECUs (sensors) connected to each bus, pull down the combo box and select the bus to be checked from the drop-down list. The drop-down list displays "ALL", "V Bus" and the names of the remaining buses.

     Combo Box	Display Content
     ALL	All ECUs (sensors) connected to the CAN bus
     V Bus	ECUs (sensors) connected to the V Bus
     Bus Name	ECUs (sensors) connected to the selected bus

   • The connection status (shown below) is indicated by the background color displayed behind the system name.

     Table 1. ECU (Sensor) on V Bus

     Background Color	Connection Status
     White	Detected normally
     Yellow	Could not be detected in the past, but is currently detected
     Red	Detected in the past, but cannot be detected now
     Not displayed	Has never been detected

     Table 2. ECU (Sensor) with no Data Monitor History

     Background Color	Connection Status
     White	Detected normally
     Yellow	Could not be detected in the past, but is currently detected
     Red	Detected in the past, but cannot be detected now
     Not displayed	Has never been detected

     Table 3. ECU (Sensor) with Data Monitor History

     Background Color	Connection Status
     White	Detected normally
     Yellow	Could not be detected in the past, but is currently detected
     Red	Detected in the past, but cannot be detected now
     Red	Has never been detected but has connection history
     Not displayed	Has never been detected and has no connection history

3. 

   "There is no system connected the communication bus." is displayed if there are no ECUs or sensors connected to the CAN bus.

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
   Power management control ECU	Power Management	for 1NR-FE
   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
   Driving support ECU	Driving Support (Cruise Control-ACC)	for 1ND-TV with Cruise Control System

DTC TABLE BY ECU

1. ECM

   Tip:

   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. MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

   Tip:

   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 PMN 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

3. SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (w/ VSC)

   Tip:

   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

4. SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (w/o VSC)

   Tip:

   DTC communication uses the CAN communication system.

   DTC No.	Detection Item
   U0073	Control Module Communication Bus Off

5. POWER STEERING ECU ASSEMBLY

   Tip:

   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

6. COMBINATION METER ASSEMBLY

   Tip:

   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

7. RADIO AND DISPLAY RECEIVER ASSEMBLY (w/ Display)

   Tip:

   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

8. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry and Start System)

   Tip:

   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

9. AIR CONDITIONING AMPLIFIER ASSEMBLY (w/ Air Conditioning System or PTC Heater)

   Tip:

   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

10. ENGINE STOP AND START ECU (w/ Stop and Start System)

    Tip:

    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

11. DRIVING SUPPORT ECU (for 1ND-TV with Cruise Control System)

    Tip:

    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
    U1104	Lost Communication with Driving Support ECU

12. POWER MANAGEMENT CONTROL ECU (for 1NR-FE)

    Tip:

    The power management control ECU is connected to the CAN communication system but CAN communication DTCs are not stored.

13. STEERING ANGLE SENSOR (SPIRAL CABLE SUB-ASSEMBLY) (w/ VSC)

    Tip:

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

14. CENTER AIRBAG SENSOR ASSEMBLY

    Tip:

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

DTC COMBINATION TABLE