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 acceleration sensor (yaw rate sensor) via CAN communication.

Tech Tips

If there is a malfunction in the bus lines between the acceleration sensor (yaw rate sensor) and the CAN communication system, DTCs U0124 (Lost Communication with Lateral Acceleration Sensor Module) are output. When DTCs U0124 are output together with C1210 and/or C1336, inspect and repair the trouble areas indicated by U0124 first.

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

DTC No. Detection Item DTC Detection Condition Trouble Area Note
C1210 Zero Point Calibration of Yaw Rate Sensor Undone Zero point calibration of yaw rate sensor undone.

  • Sensor installation

  • Yaw rate sensor

  • Skid control ECU (brake actuator assembly)

 -
C1336 Zero Point Calibration of Acceleration Sensor Undone 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 acceleration sensor (yaw rate sensor), perform zero point calibration and store system information.

Click here

Tech Tips

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

Click here

PROCEDURE


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


    1. Perform zero point calibration of the acceleration sensor (yaw rate sensor).

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  2. PERFORM TEST MODE INSPECTION (SIGNAL CHECK)


    1. Turn the engine switch off.

    2. Using the GTS, perform a Test Mode (signal check) inspection sensor check and check that all Test Mode (signal check) inspection items change from incomplete to complete.

      Click here


      Chassis > ABS/VSC/TRC > Utility
      Tester Display
      Signal Check
      OK
      All Test Mode (signal check) inspection items change from incomplete to complete.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  3. CHECK YAW RATE SENSOR INSTALLATION


    1. Turn the engine switch off.

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

      Click here

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

    NG

    INSTALL YAW RATE SENSOR CORRECTLY Click here

    OK

  4. READ VALUE USING GTS (YAW RATE SENSOR)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Select the Data List using the GTS.

      Click here


      Chassis > ABS/VSC/TRC > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Deceleration Sensor Acceleration sensor (yaw rate sensor) reading

      Min.: -18.525 m/s2

      Max.: 18.387 m/s2

      		- During deceleration/acceleration: Changes continuously
      Deceleration Sensor2 Acceleration sensor (yaw rate sensor) 2 reading

      Min.: -18.525 m/s2

      Max.: 18.387 m/s2

      		- During deceleration/acceleration: Changes continuously
      Yaw Rate Sensor Acceleration sensor (yaw rate sensor)

      Min.: -128°/s

      Max.: 127°/s

      Vehicle stopped: 0°/s

      Turning right: -128 to 0°/s

      Turning left: 0 to 127°/s

      		 -
      Yaw Rate Sensor2 Acceleration sensor (yaw rate sensor) 2

      Min.: -128°/s

      Max.: 127°/s

      Vehicle stopped: 0°/s

      Turning right: -128 to 0°/s

      Turning left: 0 to 127°/s

      		 -

      Chassis > ABS/VSC/TRC > Data List
      Tester Display
      Deceleration Sensor
      Deceleration Sensor2
      Yaw Rate Sensor
      Yaw Rate Sensor2

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

      OK
      The acceleration sensor (yaw rate sensor) output value is normal.
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    C

    REPLACE YAW RATE SENSOR Click here