VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1301/42, U0100/65, U0123/62, U0126/63

DTC Code DTC Name
C1301/42 CAN Communication System Malfunction
U0100/65 Lost Communication with ECM / PCM
U0123/62 Lost Communication with Yaw Rate Sensor Module
U0126/63 Lost Communication with Steering Angle Sensor Module

DESCRIPTION

The skid control ECU receives the signals from the ECM, steering angle sensor, and yaw rate and acceleration sensor via the CAN communication system.

DTC Code DTC Detection Condition Trouble Area
C1301/42

When any of the following is detected:


  1. With the IG1 terminal voltage 10 V or more, after the output of data from the skid control ECU is completed, the sending continues for 5 seconds or more.

  2. The bus OFF state occurs once or more within 0.1 seconds and this occurs 10 times in succession. (Sent signals cannot be received.)

  3. With the IG1 terminal voltage 10 V or more, a delay in receiving data from the yaw rate and acceleration sensor and steering angle sensor continues for 1 second or more.

  4. With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession.


    • A delay in receiving data from the yaw rate and acceleration sensor occurs more than once within 5 seconds.

 CAN communication system
U0100/65

When either of the following is detected:


  1. With the IG1 terminal voltage 10 V or more and the vehicle speed 15 km/h (9 mph) or more, data cannot be sent to the ECM for 2 seconds or more.

  2. The IG1 terminal voltage 10 V or more and the vehicle speed 15 km/h (9 mph) or more for 2 seconds or more.

CAN communication system

(Skid control ECU to ECM)
U0123/62

When either of the following is detected:


  1. With the IG1 terminal voltage 10 V or more, data from the yaw rate sensor cannot be received for 1 second or more.

  2. With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.


    • Data from the yaw rate sensor cannot be received occurs once or more within 5 seconds.

CAN communication system

(Skid control ECU to yaw rate and acceleration sensor)
U0126/63

When either of the following is detected:


  1. With the IG1 terminal voltage 10 V or more, data from the steering angle sensor cannot be received for 1 second or more.

  2. With the IG1 terminal voltage 10 V or more, the following occurs 10 times in succession within 60 seconds.


    • Data from the steering angle sensor cannot be received occurs once or more within 5 seconds.

CAN communication system

(Skid control ECU to steering angle sensor)

WIRING DIAGRAM

A0136DJE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK IF EACH SENSOR AND ECM CONNECTOR IS SECURELY CONNECTED


    1. Turn the ignition switch to OFF.

    2. Check if each sensor and ECM connector is securely connected.

      OK
      Each connector is securely connected.

    NG

    CONNECT CONNECTOR TO EACH SENSOR OR ECM CORRECTLY

    OK

  2. RECONFIRM DTC


    1. Turn the ignition switch to OFF.

    2. Record the output DTCs (for ABS, VSC, and CAN communication) Click here.

      Tech Tips

      If the CAN communication system DTC and the relevant sensor DTCs are output simultaneously, troubleshoot the relevant sensor DTCs (for ABS and VSC) after the CAN communication system returns to normal.

      Result
      Result Proceed to
      DTC output (relating to CAN communication system) A
      DTC output (relating to ABS and/or VSC DTC) B
      DTC not output C

    B

    REPAIR CIRCUIT INDICATED BY OUTPUT DTC Click here

    C

    CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) Click here

    A

    INSPECT CAN COMMUNICATION SYSTEM