VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1436

DTC Code DTC Name
C1436 Yaw Rate Sensor Malfunction

DESCRIPTION

The skid control ECU (brake actuator assembly) receives signals from the yaw rate sensor assembly via the CAN communication system.

If there is trouble in the bus lines between the yaw rate sensor assembly and the CAN communication system, DTCs U0123 (Lost Communication with Yaw Rate Sensor Module) and U0124 (Lost Communication with Lateral Acceleration Sensor Module) are stored.

DTC C1436 is also stored when calibration is not completed.

DTC Code DTC Detection Condition Trouble Area
C1436

Either condition is met:


  1. With the vehicle stationary, the yaw rate and acceleration sensor output value is not 0 deg/s.

  2. An abnormal comparison value.

 Yaw rate sensor assembly

INSPECTION PROCEDURE

Note

After replacing the yaw rate sensor assembly, perform calibration Click here.

Tech Tips

When DTC U0123 and/or U0124 is output together with DTC C1436, inspect and repair the trouble areas indicated by DTC U0123 and/or U0124 first Click here.

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (YAW RATE SENSOR, YAW RATE SENSOR 2)


    1. Turn the ignition switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the intelligent tester on.

    5. Enter the following menus: Chassis / ABS/VSC/TRC / Data List.

      ABS/VSC/TRC
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Yaw Rate Sensor Yaw rate sensor / Min.: -128°/s, Max.: 127°/s

      Vehicle stationary: 0°/s

      Right turn: -128 to 0°/s

      Left turn: 0 to 127°/s

      		 -
      Yaw Rate Sensor2 Yaw rate sensor 2 / Min.: -128°/s, Max.: 127°/s

      Vehicle stationary: 0°/s

      Right turn: -128 to 0°/s

      Left turn: 0 to 127°/s

      		 -

    6. Check the yaw rate sensor output value displayed on the intelligent tester.

      Result
      Result Proceed to
      NG (Yaw rate sensor output value is 0°/s when vehicle is stationary, but value fluctuates when turning) A
      NG (Yaw rate sensor output value is not 0°/s when vehicle is stationary) B
      OK C

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next suspected area Click here.


    B

    REPLACE YAW RATE SENSOR ASSEMBLY Click here

    C

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. CHECK YAW RATE SENSOR ASSEMBLY INSTALLATION


    1. Turn the ignition switch off.

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

      OK
      The sensor is tightened to the specified torque.
      The sensor is not installed at an angle.

    NG

    INSTALL YAW RATE SENSOR ASSEMBLY CORRECTLY Click here

    OK

    REPLACE YAW RATE SENSOR ASSEMBLY Click here