VEHICLE STABILITY CONTROL SYSTEM(for Hydraulic Brake Booster), 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 receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) 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 trouble in the bus lines between the yaw rate and acceleration sensor (airbag sensor assembly) and the CAN communication system, DTCs U0123 (yaw rate sensor communication trouble) and U0124 (acceleration sensor communication trouble) are stored.

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

DTC Code DTC Detection Condition Trouble Area
C1210 Zero point calibration of the yaw rate sensor is incomplete.

  • Zero point calibration incomplete

  • Sensor installation

  • Yaw rate and acceleration sensor (Airbag sensor assembly)

  • Skid control ECU (Master cylinder solenoid)
C1336 Zero point calibration of the acceleration sensor is incomplete.

CAUTION / NOTICE / HINT

Note


  • When replacing the master skid control ECU (master cylinder solenoid), perform calibration Click here.

  • After replacing the yaw rate and acceleration sensor (airbag sensor assembly), perform zero point calibration Click here.

Tech Tips

When DTC U0123, U0124 and/or U0126 is output together with DTC C1210 and/or C1336, inspect and repair the trouble areas indicated by DTC U0123, U0124 and/or U0126 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 ignition switch off.

    2. Perform the signal check in the Test Mode Procedure Click here.

      OK
      All test mode DTCs are cleared.

    OK

    END

    NG

  3. CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION


    1. Turn the ignition switch off.

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

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

    NG

    INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY Click here

    OK

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


    1. Turn the ignition switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON.

    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

      		 -

    6. Check that the yaw rate and acceleration sensor output value is displayed on the GTS.

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

      Note

      Check the yaw rate and acceleration sensor signal after replacement Click here.

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

    A

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    B

    REPLACE MASTER CYLINDER SOLENOID Click here

    C

    REPLACE MASTER CYLINDER SOLENOID Click here