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 assembly receives signals from the yaw rate sensor via CAN communication.

The yaw rate sensor detects the vehicle condition using 2 circuits (GL1, GL2).

Tech Tips

If there are malfunctions in the bus lines between the yaw rate sensor 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 336 Yaw rate sensor zero point calibration is incomplete.

  • Zero point calibration undone

  • Yaw rate sensor

  • Skid control ECU 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 318

Any of the following is detected:


  1. Acceleration sensor zero point calibration is incomplete.

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

  3. 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 (yaw rate sensor)

  • Skid control ECU assembly

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

 ABS DTC
DTC No. Brake warning light / yellow (minor malfunction) code ABS warning light code Slip indicator light code Brake hold standby indicator light code
C1210 - - 36 -
C1336 36 98 43 21

CAUTION / NOTICE / HINT

Note

When replacing the skid control ECU assembly or yaw rate sensor, perform initialization and calibration of the linear solenoid valve.

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 SENSOR


    1. Perform zero point calibration of the yaw rate sensor.

      Click here

      Note

      Make sure to perform initialization and calibration of the linear solenoid valve after performing "Reset Memory" as the data stored during linear solenoid valve offset learning is cleared.


      Chassis > ABS/VSC/TRC > Utility
      Tester Display
      Reset Memory

      Chassis > ABS/VSC/TRC > Utility
      Tester Display
      Test Mode

      Tech Tips


      • When the stored zero point of the yaw rate sensor is cleared, steering sensor zero point will also be cleared.

      • If the zero point and output value of the yaw rate sensor and the output value of the speed sensors are not normal, steering sensor zero point cannot be acquired normally even if the vehicle is driven straight ahead at 35 km/h (22 mph) or more.

      Result
      Proceed to
      NEXT

    NEXT

  2. PERFORM TEST MODE (SIGNAL CHECK)


    1. 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 yaw rate sensor has been installed properly.

      Click here

      OK
      The yaw rate sensor is tightened to the specified torque.
      The yaw rate sensor is not tilted.
      Result
      Proceed to
      OK
      NG

    NG

    INSTALL YAW RATE SENSOR CORRECTLY Click here

    OK

  4. CHECK DTC


    1. Check the output DTC.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Result Proceed to
      DTC C1336/98 is output. A
      DTC C1210/36 is output. B

    B

    READ VALUE USING GTS (YAW RATE SENSOR) Click here

    A

  5. READ VALUE USING GTS (ACCELERATION SENSOR)


    1. Select the Data List on the GTS.

      Click here


      Chassis > ABS/VSC/TRC > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Deceleration Sensor Acceleration sensor 1

      Min.: -18.525 m/s2, Max.: 18.387 m/s2

      		- During deceleration/acceleration: Changes continuously
      Deceleration Sensor2 Acceleration sensor 2

      Min.: -18.525 m/s2, Max.: 18.387 m/s2

      		- During deceleration/acceleration: Changes continuously

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

    2. 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
      Proceed to
      OK
      NG

    OK

    REPLACE SKID CONTROL ECU ASSEMBLY for RHD: Click here
    REPLACE SKID CONTROL ECU ASSEMBLY for LHD: Click here

    NG

    REPLACE YAW RATE SENSOR Click here

  6. READ VALUE USING GTS (YAW RATE SENSOR)


    1. Select the Data List on the GTS.

      Click here


      Chassis > ABS/VSC/TRC > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Yaw Rate Sensor Yaw rate sensor 1 Min.: -128 °/s, Max.: 127 °/s

      Vehicle stationary: 0 °/s

      Turning right: -128 to 0 °/s

      Turning left: 0 to 127 °/s

      		 -
      Yaw Rate Sensor2 Yaw rate sensor 2 Min.: -128 °/s, Max.: 127 °/s

      Vehicle stationary: 0 °/s

      Turning right: -128 to 0 °/s

      Turning left: 0 to 127 °/s

      		 -

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

    2. Check the yaw rate sensor output value displayed on the GTS.

      OK
      The yaw rate sensor output value is normal.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SKID CONTROL ECU ASSEMBLY for RHD: Click here
    REPLACE SKID CONTROL ECU ASSEMBLY for LHD: Click here

    NG

    REPLACE YAW RATE SENSOR Click here