VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1336

DTC Code DTC Name
C1336 Zero Point Calibration of Acceleration Sensor Undone

DESCRIPTION

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

Tech Tips

If there is a malfunction in the bus lines between the yaw rate and acceleration sensor (yaw rate sensor) and the CAN communication system, DTC U0123 (Lost Communication with Yaw Rate Sensor Module) is output.

When DTC U0123 is output together with C1336, inspect and repair the trouble areas indicated by U0123 first.

This DTC is also output when the calibration has not been completed.

DTC No. DTC Detection Condition Trouble Area
C1336 Zero point calibration of acceleration sensor undone.

  • Sensor installation

  • Acceleration sensor (yaw rate sensor)

  • Skid control ECU (brake actuator assembly)

CAUTION / NOTICE / HINT

Note

When replacing the skid control ECU (brake actuator assembly) or yaw rate and acceleration sensor (yaw rate sensor), perform system variant learning and acceleration sensor zero point calibration Click here.

Tech Tips

When U0123 is output together with C1336, inspect and repair the trouble areas indicated by U0123 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 INSPECTION (SIGNAL CHECK)


    1. Perform the sensor check in Test Mode Procedure Click here.

      OK
      No Test Mode DTCs are output.

    OK

    END

    NG

  3. CHECK YAW RATE SENSOR INSTALLATION


    1. Turn the ignition switch off.

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

      OK
      The yaw rate and acceleration sensor (yaw rate sensor) should be tightened to the specified torque.
      The yaw rate and acceleration sensor (yaw rate sensor) should not be installed in a tilted position.

    NG

    INSTALL YAW RATE SENSOR Click here

    OK

  4. READ VALUE USING GTS (ACCELERATION SENSOR)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Select the Data List on the GTS Click here.

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

      Acceleration sensor reading/ Min.: -18.525 m/s2, Max.: 18.387 m/s2

      		- During deceleration/ acceleration: Changes continuously
      Deceleration Sensor2

      Acceleration sensor 2 reading/ Min.: -18.525 m/s2, Max.: 18.387 m/s2

      		- During deceleration/ acceleration: Changes continuously

    4. Check the yaw rate and acceleration sensor (yaw rate sensor) output value displayed on the GTS.

      OK
      The yaw rate and acceleration sensor (yaw rate 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.


    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    NG

    REPLACE YAW RATE SENSOR Click here