Can Communication System (For Lhd) Diagnosis System

Communication System. Camry. Acv40 Gsv40
Can Communication. Camry. Acv40 Gsv40

  1. BUS CHECK (COMMUNICATION MALFUNCTION DTC)

  1. BUS CHECK (COMMUNICATION BUS CHECK)

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

  1. DTC TABLE BY ECU

  1. DTC COMBINATION TABLE

Can Communication System (For Lhd) -- Diagnosis System



BUS CHECK (COMMUNICATION MALFUNCTION DTC)
HINT:
Only CAN communication system DTCs for each ECU can be displayed on the intelligent tester.


    Camry. Acv40 Gsv40.Can Communication.Can Communication System (For Lhd).Can Communication System (For Lhd) Diagnosis System

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



    2. Camry. Acv40 Gsv40

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



    3. Camry. Acv40 Gsv40

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



    4. Camry. Acv40 Gsv40

  4. CAN communication system DTC(s) is/are displayed.


BUS CHECK (COMMUNICATION BUS CHECK)
HINT:
The ECUs and sensors that are properly connected to the CAN communication system can be displayed using the intelligent tester.


    Camry. Acv40 Gsv40

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



    2. Camry. Acv40 Gsv40

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

    HINT:
    If any properly connected ECUs or sensors are not displayed, there is a communication stop in the system.


    3. Camry. Acv40 Gsv40

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


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

  1. Systems (ECUs, sensors) that use CAN communication vary depending on the vehicle's optional equipments. Check which systems (ECUs, sensors) are installed on the vehicle.

    ECU/Sensor name
    		Check method
    ABS / VSC / TRC
    		Installed on all vehicles
    Steering Angle Sensor
    		Installed on vehicles with VSC system
    Yaw Rate / Deceleration Sensor
    		Installed on vehicles with VSC system
    Engine
    		Installed on all vehicles
    ECT
    		Installed on vehicles with automatic transaxle
    SRS Airbag
    		Installed on all vehicles
    Air Conditioner
    		Installed on all vehicles
    Combination Meter
    		Installed on all vehicles
    Main Body
    		Installed on all vehicles
    AVN1
    		Installed on vehicles with navigation system
    Entry and Start/ Wireless Tuner
    		Installed on vehicles with entry and start system
    Clearance Sonar
    		Installed on vehicles with TOYOTA parking assist-sensor system

DTC TABLE BY ECU
HINT:
  1. For the CAN communication system, CAN communication system DTCs stored in certain ECUs can be displayed using the intelligent tester.
  2. If CAN communication system DTCs are output, trouble cannot be determined only by the DTCs. Perform troubleshooting according to "HOW TO PROCEED WITH TROUBLESHOOTING" (CAMRY_ACV40 RM000000WI605LX.html).

  1. ECM (2AZ-FE)

    DTC No.
    		Detection Item
    U0101*
    		High speed CAN Communication Bus
    HINT:
    1. DTC communication is via the CAN communication system.
    2. *: The ECM is malfunctioning if only U0101 is output. Replace the ECM.

  2. ECM (2GR-FE)

    DTC No.
    		Detection Item
    U0101*
    		High speed CAN Communication Bus
    HINT:
    1. DTC communication is via the CAN communication system.
    2. *: The ECM is malfunctioning if only U0101 is output. Refer to SFI system (CAMRY_ACV40 RM000001O2V035X.html).

  3. SKID CONTROL ECU (w/ VSC)

    DTC No.
    		Detection Item
    U0073
    		Control Module Communication Bus Off
    U0100
    		Lost Communication with ECM/PCM "A"
    U0123
    		Lost Communication with Yaw Rate Sensor Module
    U0124
    		Lost Communication with Lateral Acceleration Sensor Module
    U0126
    		Lost Communication with Steering Angle Sensor Module
    HINT:
    DTC communication is via the CAN communication system.

  4. SKID CONTROL ECU (w/o VSC)

    DTC No.
    		Detection Item
    U0073
    		Control Module Communication Bus Off
    HINT:
    DTC communication is via the CAN communication system.

  5. COMBINATION METER ECU

    DTC No.
    		Detection Item
    U0100
    		Lost Communication with ECM/PCM "A"
    U0129
    		Lost Communication with Brake System Control Mode
    HINT:
    DTC communication is via the CAN communication system.

  6. AIR CONDITIONER AMPLIFIER

    DTC No.
    		Detection Item
    B1499
    		Multiplex Communication Circuit
    HINT:
    DTC communication is via the CAN communication system.

  7. NAVIGATION RECEIVER ASSEMBLY (w/ Navigation system)

    DTC No.
    		Detection Item
    U0073
    		CAN Communication Malfunction
    HINT:
    DTC communication is via the CAN communication system.

  8. MAIN BODY ECU

    DTC No.
    		Detection Item
    B1207
    		Smart Key ECU Communication Stop
    B1297
    		Clearance Sonar ECU Communication Stop
    B2326
    		MS Bus Failure
    HINT:
    DTC communication is via the CAN communication system.

  9. CENTER AIRBAG SENSOR

    HINT:
    Although the center airbag sensor is connected to the CAN communication system, CAN communication DTCs are not output.

  10. STEERING ANGLE SENSOR (w/ VSC)

    HINT:
    Although the steering angle sensor is connected to the CAN communication system, CAN communication DTCs are not output.

  11. YAW RATE SENSOR (w/ VSC)

    HINT:
    Although the yaw rate sensor is connected to the CAN communication system, CAN communication DTCs are not output.

  12. CERTIFICATION ECU (w/ Entry and start system)

    HINT:
    Although the certification ECU is connected to the CAN communication system, CAN communication DTCs are not output.

  13. CLEARANCE WARNING ECU (w/ TOYOTA Parking assist-sensor system)

    HINT:
    Although the clearance warning ECU is connected to the CAN communication system, CAN communication DTCs are not output.

DTC COMBINATION TABLE

  1. with VSC SYSTEM

    DTC
    		Trouble Mode
    Output from
    		Output DTC
    		ECM Communication Stop Mode
    		Skid Control ECU Communication Stop Mode
    		Steering Angle Sensor Communication Stop Mode
    		Yaw Rate Sensor Communication Stop Mode
    		Navigation ECU Communication Stop Mode
    Skid Control ECU
    		U0073
    		X
    		X
    		X
    		X
    		X
    U0100
    		▲ During driving
    		▲ During driving
    		X
    		X
    		X
    U0123
    		X
    		○
    		X
    		○
    		X
    U0124
    		X
    		○
    		X
    		○
    		X
    U0126
    		X
    		○
    		○
    		X
    		X
    Combination Meter ECU
    		U0100
    		○
    		X
    		X
    		X
    		X
    U0129
    		X
    		○
    		X
    		X
    		X
    Air Conditioner Amplifier ECU
    		B1499
    		X
    		X
    		X
    		X
    		X
    Navigation ECU
    		U0073
    		X
    		X
    		X
    		X
    		○*1
    HINT:
    1. ○: Set
    2. X: Not set or may be set depending on the malfunctioning part when one side of the CAN bus wire becomes open
    3. ▲: Set under the condition shown in the table above
    4. *1: DTC is not output during communication error.

    DTC
    		Trouble Mode
    Output from
    		Output DTC
    		Air Conditioner Amplifier ECU Communication Stop Mode
    		Center Airbag Sensor Communication Stop Mode
    		Main Body ECU Communication Stop Mode
    		Combination Meter ECU Communication Stop Mode
    Skid Control ECU
    		U0073
    		X
    		X
    		X
    		X
    U0100
    		X
    		X
    		X
    		X
    U0123
    		X
    		X
    		X
    		X
    U0124
    		X
    		X
    		X
    		X
    U0126
    		X
    		X
    		X
    		X
    Combination Meter ECU
    		U0100
    		X
    		X
    		X
    		X
    U0129
    		X
    		X
    		X
    		X
    Air Conditioner Amplifier ECU
    		B1499
    		X
    		X
    		▲
    		▲
    Navigation ECU
    		U0073
    		X
    		X
    		X
    		X
    HINT:
    1. ○: Set
    2. X: Not set or may be set depending on the malfunctioning part when one side of the CAN bus wire becomes open
    3. ▲: Only when both the combination meter and main body ECU have a communication error

  2. without VSC SYSTEM

    DTC
    		Trouble Mode
    Output from
    		Output DTC
    		ECM Communication Stop Mode
    		Skid Control ECU Communication Stop Mode
    		Combination Meter ECU Communication Stop Mode
    		Air Conditioner Amplifier ECU Communication Stop Mode
    Skid Control ECU
    		U0073
    		X
    		X
    		X
    		X
    Combination Meter ECU
    		U0100
    		○
    		X
    		○
    		X
    U0129
    		X
    		○
    		○
    		X
    Air Conditioner Amplifier ECU
    		B1499
    		X
    		X
    		▲
    		X
    Navigation ECU
    		U0073
    		X
    		X
    		X
    		X
    HINT:
    1. ○: Set
    2. X: Not set or may be set depending on the malfunctioning part when one side of the CAN bus wire becomes open
    3. ▲: Only when both the combination meter and main body ECU have a communication error

    DTC
    		Trouble Mode
    Output from
    		Output DTC
    		Center Airbag Sensor Communication Stop Mode
    		Main Body ECU Communication Stop Mode
    		Navigation ECU Communication Stop Mode
    Skid Control ECU
    		U0073
    		X
    		X
    		X
    Combination Meter ECU
    		U0100
    		X
    		X
    		X
    U0129
    		X
    		X
    		X
    Air Conditioner Amplifier ECU
    		B1499
    		▲
    		X
    		X
    Navigation ECU
    		U0073
    		X
    		X
    		○*1
    HINT:
    1. ○: Set
    2. X: Not set or may be set depending on the malfunctioning part when one side of the CAN bus wire becomes open
    3. ▲: Only when both the combination meter and main body ECU have a communication error
    4. *1: DTC is not output during communication error.

  3. Perform troubleshooting according to the combination of DTCs output.

    HINT:
    1. ECM Communication Stop Mode (CAMRY_ACV40 RM000000WIP04SX.html)
    2. Skid Control ECU Communication Stop Mode (CAMRY_ACV40 RM000000WII00MX.html)
    3. Steering Angle Sensor Communication Stop Mode (CAMRY_ACV40 RM000000WIH00OX.html)
    4. Yaw Rate Sensor Communication Stop Mode (CAMRY_ACV40 RM000000WIJ00NX.html)
    5. Combination Meter ECU Communication Stop Mode (CAMRY_ACV40 RM000001F1S005X.html)
    6. Center Airbag Sensor Communication Stop Mode (CAMRY_ACV40 RM000001WG9002X.html)
    7. Air Conditioner Amplifier ECU Communication Stop Mode (CAMRY_ACV40 RM000001F1U003X.html)
    8. Main Body ECU Communication Stop Mode (CAMRY_ACV40 RM000001F1V004X.html)
    9. Navigation ECU Communication Stop Mode (CAMRY_ACV40 RM00000109K00OX.html)