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

The yaw rate sensor has a built-in acceleration sensor and detects the vehicle's condition using 2 circuits (GL1, GL2). If there is a malfunction in the bus lines between the yaw rate sensor and the CAN communication system, DTCs U0123 (Lost Communication with Yaw Rate Sensor Module) and U0124 (Lost Communication with Lateral Acceleration Sensor Module) are output.

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

DTC Code DTC Detection Condition Trouble Area
C1210 Zero point calibration of yaw rate sensor undone. Yaw rate sensor
C1336 Zero point calibration of acceleration sensor undone. Acceleration sensor (Yaw rate sensor)

WIRING DIAGRAM

Refer to DTCs C1232, C1243 and C1245 Click here.

INSPECTION PROCEDURE

Note

When replacing the brake actuator assembly or yaw rate sensor, perform zero point calibration and store system information Click here.

Tech Tips

When DTC U0123 and/or U0124 is output together with DTC C1210 and/or C1336, inspect and repair the trouble areas indicated by DTC U0123 and/or U0124 first Click here.

PROCEDURE


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


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


    NEXT

  2. PERFORM TEST MODE (SIGNAL CHECK)


    1. Turn the engine 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.


    NG

    CHECK YAW RATE SENSOR INSTALLATION Click here

    OK

    END

  3. CHECK YAW RATE SENSOR INSTALLATION


    1. Turn the engine switch off.

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

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

    NG

    INSTALL YAW RATE SENSOR CORRECTLY Click here

    OK

  4. READ VALUE USING GTS (YAW RATE AND ACCELERATION SENSOR)


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Start the engine.

    4. Turn the GTS on.

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

      ABS/VSC/TRC
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Deceleration Sensor

      Acceleration sensor / min.: -18.525 m/s2, max.: 18.387 m/s2

      		- Changes continuously during acceleration/deceleration.
      Deceleration Sensor2

      Acceleration sensor 2 / min.: -18.525 m/s2, max.: 18.387 m/s2

      		- Changes continuously during acceleration/deceleration.
      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 that the yaw rate and acceleration sensor output value displayed on the GTS.

      OK
      The yaw rate and acceleration sensor output value is normal.

      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.


    NG

    REPLACE YAW RATE SENSOR Click here

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here