ELECTRONICALLY CONTROLLED BRAKE SYSTEM, Diagnostic DTC:C1210/36 and 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).

Tip:

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

Tip:

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
      Tip:

      • 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/or C1336/98 are output.

    A

    DTCs C1210/36 and C1336/98 are not output.

    B
    A

    REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY

    for LHD:Click here

    for RHD:Click here

    B

    END