ELECTRIC PARKING BRAKE SYSTEM, Diagnostic DTC:U0073/51, U0100/53, U0124/55, U0129/52

DTC Code DTC Name
U0073/51 Control Module Communication Bus OFF
U0100/53 Lost Communication with ECM/PCM
U0124/55 Lost Communication with Lateral Acceleration Sensor Module
U0129/52 Lost Communication with Brake System Control Module

DESCRIPTION

The electric parking brake ECU uses CAN communication with the ECM and skid control ECU.

PROCEDURE


  1. CHECK DTC


    1. Turn the engine switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the engine switch on (IG) and the tester ON.

    4. Clear the DTC Click here.

    5. Turn the engine switch off.

    6. Turn the engine switch on (IG) and check for DTC.

      Result
      Result Proceed to
      DTC is not output A
      DTC is output (for LHD) B
      DTC is output (for RHD) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM (for LHD) Click here

    C

    GO TO CAN COMMUNICATION SYSTEM (for RHD) Click here