ELECTRIC PARKING BRAKE SYSTEM, Diagnostic DTC:C1336/74

DTC Code DTC Name
C1336/74 Zero Point Calibration of G Sensor Undone

DESCRIPTION

The yaw rate sensor has a built-in G sensor. The electric parking brake ECU receives signals from the yaw rate sensor through the CAN communication system.

The DTC is stored when the calibration has not been completed.

DTC Code DTC Detection Condition Trouble Area
C1336/74 The G sensor is not calibrated.

  • Zero point calibration incomplete (Perform zero point calibration and check for DTCs. If this DTC is not output again, the sensor is normal)

  • Electric parking brake ECU (Parking brake with bracket actuator assembly)

CAUTION / NOTICE / HINT

Note


  • Before performing work, turn the ignition switch off and wait approximately 20 seconds to make sure that the parking brake cannot operate.

  • When replacing the parking brake with bracket actuator assembly and/or yaw rate and acceleration sensor, perform zero point calibration Click here.

Tech Tips

When DTC U0124/55 is output together with DTC C1336/74, inspect and repair trouble areas indicated by DTC U0124/55 first Click here.

PROCEDURE


  1. PERFORM ZERO POINT CALIBRATION


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


    NEXT

  2. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Drive the vehicle and turn the steering wheel to the right and left.

    3. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC is output. A
      DTC is not output. B

    B

    END

    A

  3. CHECK YAW RATE SENSOR INSTALLATION


    1. Turn the ignition switch off.

    2. Check that the yaw rate sensor is installed properly Click here.

      OK
      The sensor is tightened to the specified torque.
      The sensor is not tilted.

    NG

    INSTALL YAW RATE SENSOR CORRECTLY Click here

    OK

  4. READ VALUE USING INTELLIGENT TESTER (DECELERATION SENSOR 1)


    1. Turn the ignition switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Select the Data List mode on the intelligent tester Click here.

      Electric Parking Brake
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Deceleration Sensor 1

      G sensor 1 input/

      Min.: -18.327 m/s2

      Max.: 18.183 m/s2

      		 - -

    4. Check "Deceleration Sensor 1" while the vehicle is stopped.

      Result
      Result Proceed to
      Value between -1.47 and 1.47 m/s2 is displayed A
      Value outside range above is displayed B

    A

    REPLACE PARKING BRAKE WITH BRACKET ACTUATOR ASSEMBLY Click here

    B

    REPLACE YAW RATE SENSOR Click here