ELECTRONICALLY CONTROLLED BRAKE SYSTEM, Diagnostic DTC:C1210/36, C1336/98

DTC Code DTC Name
C1210/36 Zero Point Calibration of Yaw Rate Sensor Undone
C1336/98 Zero Point Calibration of Acceleration Sensor Undone

DESCRIPTION

The skid control ECU (brake booster with master cylinder assembly) receives signals from the yaw rate and acceleration sensor (airbag ECU assembly) via CAN communication.

The airbag ECU assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition using 2 circuits (GL1, GL2).

Tech Tips

If there are malfunctions in the bus lines between the yaw rate and acceleration sensor (airbag ECU assembly) and the CAN communication system, DTCs U0123/62 (Lost Communication with Yaw Rate Sensor Module) and U0124/95 (Lost Communication with Lateral Acceleration Sensor Module) will be stored.

These DTCs (C1210/36 and C1336/98) will also be stored when zero point calibration has not been completed.

DTC No. Detection Item INF Code DTC Detection Condition Trouble Area Note
C1210/36 Zero Point Calibration of Yaw Rate Sensor Undone - Yaw rate sensor zero point calibration is incomplete.

  • Zero point calibration undone

  • Yaw rate sensor (Airbag ECU assembly)

  • Skid control ECU (Brake booster with master cylinder assembly)

(Perform zero point calibration and check for DTCs. If no DTCs are output again, the sensor is normal.)

 VSC DTC
C1336/98 Zero Point Calibration of Acceleration Sensor Undone -

Either of the following is detected:


  1. The vehicle is driven normally without zero point calibration completed.

  2. After completing zero point calibration, zero point voltage of the sensor is not within the range of 2.38 to 2.62 V.

  • Zero point calibration undone

  • Acceleration sensor (Airbag ECU assembly)

  • Skid control ECU (Brake booster with master cylinder assembly)

(Perform zero point calibration and check for DTCs. If no DTCs are output again, the sensor is normal.)

 ABS DTC

CAUTION / NOTICE / HINT

Note


  • When replacing the skid control ECU (brake booster with master cylinder assembly), perform initialization and calibration of the linear solenoid valve.

    Click here

  • When replacing the yaw rate and acceleration sensor (airbag ECU assembly), perform zero point calibration.

    Click here

Tech Tips

When U0123/62 and/or U0124/95 is output together with C1210/36 and/or C1336/98, inspect and repair trouble areas indicated by U0123/62 and/or U0124/95 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


      Chassis > ABS/VSC/TRC > Utility
      Tester Display
      Test Mode
      Result
      Proceed to
      NEXT

    NEXT

  2. RECONFIRM DTC


    1. Turn the power switch off.

    2. Clear the DTCs.

      Click here


      Chassis > ABS/VSC/TRC > Clear DTCs

    3. Turn the power switch off.

    4. Turn the power switch on (READY).

    5. Drive the vehicle at a speed of 30 km/h (18 mph) or more, turn the steering wheel, and decelerate the vehicle (depress the brake pedal).

    6. Check if the same DTC is output.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Result Proceed to
      DTCs C1210/36 and/or C1336/98 are output. A
      DTCs C1210/36 and C1336/98 are not output. B

      Tech Tips


      • These DTCs are stored because zero point calibration has not been completed.

      • End the procedure if the same DTCs are not stored after completion of zero point calibration.


    B

    END

    A

  3. CHECK AIRBAG ECU ASSEMBLY INSTALLATION


    1. Turn the power switch off.

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

      Click here

      OK
      The airbag ECU assembly is tightened to the specified torque.
      The airbag ECU assembly is not tilted.
      Result
      Proceed to
      OK
      NG

    NG

    INSTALL AIRBAG ECU ASSEMBLY CORRECTLY Click here

    OK

  4. REPLACE AIRBAG ECU ASSEMBLY


    1. Replace the yaw rate and acceleration sensor (airbag ECU assembly).

      Click here

      Note

      Check the yaw rate and acceleration sensor signal after replacement.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. RECONFIRM DTC


    1. Clear the DTCs.

      Click here


      Chassis > ABS/VSC/TRC > Clear DTCs

    2. Turn the power switch off.

    3. Turn the power switch on (READY).

    4. Drive the vehicle at a speed of 30 km/h (18 mph) or more, turn the steering wheel, and decelerate the vehicle (depress the brake pedal).

    5. Check if the same DTC is output.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Result Proceed to
      DTCs C1210/36 and C1336/98 are not output. A
      DTCs C1210/36 and/or C1336/98 are output (for RHD). B
      DTCs C1210/36 and/or C1336/98 are output (for LHD). C

    A

    END

    B

    REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY Click here

    C

    REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY Click here