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Home >> Lexus >> 2021 >> LS 500 Base, AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/ Vacuum Brake Booster) - Diagnostic Codes (2 Of 4) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster) >> DTC C1210: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336: Zero Point Calibration of Acceleration Sensor Undone [12/2017 - 09/2018] >> Procedure

DTC C1210: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336: Zero Point Calibration of Acceleration Sensor Undone [12/2017 - 09/2018]: Procedure

  1. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR 
    1. Perform zero point calibration of the acceleration sensor (yaw rate sensor).

      Refer to CALIBRATION [12/2017 - 09/2018]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. PERFORM TEST MODE INSPECTION (SIGNAL CHECK) 
    1. Turn the engine switch off.
    2. Using the Techstream, perform a Test Mode (signal check) inspection sensor check and check that all Test Mode (signal check) inspection items change from incomplete to complete.

      Refer to TEST MODE PROCEDURE [12/2017 - 09/2018]

      Chassis > ABS/VSC/TRAC > Utility 

      Tester Display
      Signal Check

      OK

      All Test Mode (signal check) inspection items change from incomplete to complete.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    See step  3

  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.

      Refer to INSTALLATION [12/2017 - 09/2018]

      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

    Result: 

    NG 

    INSTALL YAW RATE SENSOR CORRECTLY. Refer to  INSTALLATION [12/2017 - 09/2018] 

    Result: 

    OK 

    See step  4

  4. READ VALUE USING TECHSTREAM (YAW RATE SENSOR) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Select the Data List using the Techstream.

      Refer to DATA LIST / ACTIVE TEST [12/2017 - 09/2018]

      Chassis > ABS/VSC/TRAC > 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/TRAC > 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 Techstream.

      OK

      The acceleration sensor (yaw rate sensor) output value is normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [12/2017 - 09/2018] 

    Result: 

    NG 

    REPLACE YAW RATE SENSOR. Refer to  REMOVAL [12/2017 - 09/2018]