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 receives signals from the yaw rate and acceleration 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 trouble in the bus lines between the yaw rate and acceleration sensor and the CAN communication system, the DTCs U0123 (yaw rate sensor communication trouble) and U0124 (acceleration sensor communication trouble) 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 and acceleration sensor

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

  • Yaw rate and acceleration sensor

  • Brake actuator assembly (Skid control ECU)

INSPECTION PROCEDURE

Note


  • When replacing the yaw rate and deceleration sensor, perform the following procedures:

    For the VSC system, clear and then reobtain the zero point calibration Click here.

    For the CVT system, perform "Reset Memory", "Deceleration Sensor 0 Point Calibration", and "CVT Oil Pressure Calibration" (for K41A Click here, for K41B Click here.

  • When replacing the brake actuator assembly, perform zero point calibration Click here.

Tech Tips

When U0123, U0124 and/or U0126 is output along with C1210 and/or C1336, inspect and repair trouble areas indicated by 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 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 AND ACCELERATION SENSOR INSTALLATION Click here

    OK

    END

  3. CHECK YAW RATE AND ACCELERATION SENSOR INSTALLATION


    1. Turn the ignition switch off.

    2. Check that the yaw rate and acceleration 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 YAW RATE AND ACCELERATION SENSOR CORRECTLY Click here

    OK

  4. READ VALUE USING INTELLIGENT TESTER (YAW RATE AND ACCELERATION 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.: -17.4 m/s2,

      max.: 17.4 m/s2

      Min.: -17.4 m/s2

      Max.: 17.4 m/s2

      		Reading changes when vehicle is bounced
      Deceleration Sensor2

      Acceleration sensor 2/

      min.: -17.4 m/s2,

      max.: 17.4 m/s2

      Min.: -17.4 m/s2

      Max.: 17.4 m/s2

      		Reading changes when vehicle is bounced
      Yaw Rate Sensor

      Yaw rate sensor/

      min.: -100 deg/s,

      max.: 100 deg/s

      Vehicle stationary: 0 deg/s

      Right turn: -100 to 0 deg/s

      Left turn: 0 to 100 deg/s

      		 -

    4. Check the yaw rate and acceleration sensor output value displayed on the intelligent tester.

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

      Note

      Check the yaw rate and acceleration 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.


    NG

    REPLACE YAW RATE AND ACCELERATION SENSOR Click here

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here