VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C0365/28, C1234/34

DTC Code DTC Name
C0365/28 Malfunction in Deceleration Sensor
C1234/34 Yaw Rate Sensor Malfunction

DESCRIPTION

The skid control ECU receives signals from the yaw rate sensor via the CAN communication system.

The yaw rate sensor has a built-in acceleration sensor.

If there is trouble in the bus lines between the yaw rate sensor and the CAN communication system, DTC U0123/62 (malfunction in CAN communication with the yaw rate sensor) is stored.

DTC Code DTC Detection Condition Trouble Area
C0365/28

When any of the following is detected:


  1. Lateral acceleration difference between the sensor signal and reference value is large.

  2. Offset value of the sensor signal is higher than the standard value.

  3. Sensor signal is out of range.

  • Yaw rate sensor

  • Yaw rate sensor circuit

  • Sensor installation
C1234/34 Sensor malfunction signal is received from the yaw rate sensor.

  • Yaw rate sensor

  • Yaw rate sensor circuit

WIRING DIAGRAM

A004PAUE11

CAUTION / NOTICE / HINT

Tech Tips

When DTC U0123/62 and/or U0126/63 is output together with DTC C0365/28 and/or C1234/34, inspect and repair the trouble areas indicated by DTC U0123/62 and/or U0126/63 first Click here.

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs Click here.

    2. Start the engine.

    3. At a speed of 30 km/h (18 mph) or more, drive the vehicle, turn the steering wheel and decelerate the vehicle (depress the brake pedal).

    4. Turn the ignition switch to ON again and check that no CAN communication system DTC is output Click here.

      Result
      Result Proceed to
      CAN communication system DTC is not output. A
      CAN communication system DTC is output. B

    B

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    A

  2. CHECK YAW RATE SENSOR INSTALLATION


    1. Turn the ignition switch off.

    2. Check that the yaw rate sensor is installed properly Click here.

      OK
      The sensor is tightened to the specified torque.
      The sensor is not tilted.

    NG

    INSTALL YAW RATE SENSOR CORRECTLY Click here

    OK

  3. INSPECT YAW RATE SENSOR (IGA TERMINAL)


    1. Turn the ignition switch off.

    2. Disconnect the yaw rate sensor connector.

    3. A004S04E02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Yaw Rate Sensor)

      Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D69-1 (IGA) - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT YAW RATE SENSOR (GNDA TERMINAL)


    1. Turn the ignition switch off.

    2. Disconnect the yaw rate sensor connector.

    3. A004SBSE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Yaw Rate Sensor)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      D69-4 (GNDA) - Body ground Always Below 1 Ω

    OK

    REPLACE YAW RATE SENSOR Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR