ELECTRIC PARKING BRAKE SYSTEM, Diagnostic DTC:C1245/62

DTC Code DTC Name
C1245/62 Deceleration Sensor

DESCRIPTION

w/ VSC:

The yaw rate sensor has a built-in G sensor. The electric parking brake ECU receives vehicle tilt information from the yaw rate sensor via CAN communication.

w/o VSC:

The parking brake with bracket actuator assembly has a built-in G sensor.

DTC Code DTC Detection Condition Trouble Area
C1245/62

One of the following conditions is met:


  • The G sensor signal exceeds the specified range.

  • The calculated offset of the G sensor signal is out of the specified range.

  • The G sensor internal test failed.

  • Yaw rate sensor (w/ VSC)

  • Parking brake with bracket actuator assembly (w/o VSC)

INSPECTION PROCEDURE

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 sensor, perform zero point calibration Click here.

PROCEDURE


  1. CHECK BRAKE CONTROL TYPE


    1. Check the brake control type.

      Result
      Result Proceed to
      w/ VSC A
      w/o VSC B

    B

    CHECK PARKING BRAKE WITH BRACKET ACTUATOR INSTALLATION Click here

    A

  2. CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM)


    1. Check if a yaw rate sensor malfunction DTC is output for the vehicle stability control system Click here.

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

    B

    GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here

    A

  3. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Drive the vehicle at a speed of 20 km/h (12 mph) or more for 2 minutes or more.

    3. Check for DTCs Click here.

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

    B

    USE SIMULATION METHOD TO CHECK Click here

    A

    REPLACE YAW RATE SENSOR Click here

  4. CHECK PARKING BRAKE WITH BRACKET ACTUATOR INSTALLATION


    1. Check that the parking brake with bracket actuator is installed properly Click here.

      OK
      The parking brake with bracket actuator is tightened to the specified torque.
      The parking brake with bracket actuator is not tilted.

    NG

    INSTALL PARKING BRAKE WITH BRACKET ACTUATOR ASSEMBLY CORRECTLY Click here

    OK

  5. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Drive the vehicle at a speed of 20 km/h (12 mph) or more for 2 minutes or more.

    3. Check for DTCs Click here.

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

    B

    USE SIMULATION METHOD TO CHECK Click here

    A

    REPLACE PARKING BRAKE WITH BRACKET ACTUATOR ASSEMBLY Click here