VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1210, C1336

DTC Code DTC Name
C1210 Zero Point Calibration of Yaw Rate Sensor Undone
C1336 Zero Point Calibration of Acceleration Sensor Undone

DESCRIPTION

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

The center airbag sensor assembly (yaw rate sensor) has a built in deceleration sensor and detects the vehicle's condition using 2 circuits (GL1, GL2). If there is trouble in the bus lines between the center airbag sensor assembly (yaw rate sensor) and the CAN communication system, the DTCs U0124 (Lost Communication with Lateral Acceleration Sensor Module) are output.

The DTCs are also output when the calibration has not been completed.

DTC NO. DTC Detection Condition Trouble Area
C1210 Zero point calibration of yaw rate sensor undone.

  • Center airbag sensor assembly (Yaw rate sensor)

  • Brake actuator assembly (Skid control ECU)
C1336 Zero point calibration of acceleration sensor undone.

  • Center airbag sensor assembly (Yaw rate sensor)

  • Brake actuator assembly (Skid control ECU)

CAUTION / NOTICE / HINT

Note


  • When replacing the center airbag sensor assembly (yaw rate sensor), be sure to perform deceleration sensor 0 point calibration and CVT oil pressure calibration after performing AT/CVT learned values initialization.

    for K310 Click here

    for K411 Click here

  • When replacing the brake actuator assembly (skid control ECU), perform zero point calibration Click here.

Tech Tips

When U0124 and/or U0126 is output along with C1210 and/or C1336, inspect and repair trouble areas indicated by U0124 and/or U0126 first Click here.

PROCEDURE


  1. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND DECELERATION SENSOR


    1. Perform zero point calibration of the yaw rate and deceleration sensor Click here.


    NEXT

  2. PERFORM TEST MODE (SIGNAL CHECK)


    1. Turn the ignition switch off.

    2. Perform the sensor check in the Test Mode procedure Click here.

      OK
      All Test Mode DTCs are cleared.

      Tech Tips

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

      Result
      Result Proceed to
      NG A
      OK B

    B

    END

    A

  3. CHECK CENTER AIR BAG SENSOR ASSEMBLY (YAW RATE SENSOR)


    1. Turn the ignition switch off.

    2. Check that the center airbag sensor assembly (yaw rate sensor) has been installed properly Click here.

      OK
      The sensor should be tightened to the specified torque.
      The sensor is not installed in a tilted position.

    NG

    INSTALL CENTER AIR BAG SENSOR ASSEMBLY (YAW RATE SENSOR) Click here

    OK

  4. READ VALUE USING INTELLIGENT TESTER (YAW RATE AND DECELERATION SENSOR)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

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

      ABS/VSC/TRC (Skid Control ECU)
      Tester Display

      Measurement

      Item/Range

      		 Normal Condition Diagnostic Note
      Deceleration Sensor

      Acceleration sensor/

      min.: -18.525 m/s2,

      max.: 18.387 m/s2

      		- During deceleration/acceleration: Changes continuously
      Deceleration Sensor2

      Acceleration sensor 2/

      min.: -18.525 m/s2,

      max.: 18.387 m/s2

      		- During deceleration/acceleration: Changes continuously
      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

      		 -

    4. Check the center airbag sensor assembly (yaw rate sensor) output value displayed on the intelligent tester.

      OK
      The center airbag sensor assembly (yaw rate sensor) output value is normal.

      Note

      Check the center airbag sensor assembly (yaw rate sensor) signal after replacement Click here.

      Tech Tips

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

      Result
      Result Proceed to
      NG A
      OK (for LHD) B
      OK (for RHD) C

    A

    REPLACE CENTER AIR BAG SENSOR ASSEMBLY (YAW RATE SENSOR) Click here

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) Click here

    C

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) Click here