ELECTRIC PARKING BRAKE SYSTEM, Diagnostic DTC:U0073/51, U0100/53, U0124/55, U0129/52, U0293/54

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
U0293/54 Lost Communication with HV ECU

DESCRIPTION

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

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC


    1. Turn the power switch OFF.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the power switch ON (IG) and the tester ON.

    4. Clear the DTC Click here.

    5. Turn the power switch OFF.

    6. Turn the power 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

    B

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    C

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    A

    USE SIMULATION METHOD TO CHECK Click here