REAR VIEW MONITOR SYSTEM (w/ Side Monitor System), Diagnostic DTC:U0073, U0100, U0129, U0140

DTC Code DTC Name
U0073 Control Module Communication Bus Off
U0100 Lost Communication with ECM
U0129 Lost Communication with Brake System Control Module
U0140 Lost Communication with Main Body ECU

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the parking assist ECU.

Tech Tips

If CAN communication system DTCs are stored, they may also be stored in other systems.

DTC Code DTC Detection Condition Trouble Area
U0073 Control module communication bus off CAN communication system
U0100 Lost communication with ECM
U0129 Lost communication with brake system
U0140 Lost communication with main body ECU

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Tech Tips


      • If the CAN communication system has been inspected and repaired in other systems, the DTCs will not be output when rechecking for DTCs.

      • If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs Click here.

      Result
      Result Proceed to
      No DTC is output A
      DTC (CAN communication system DTC) is output (for LHD with Entry and Start System) B
      DTC (CAN communication system DTC) is output (for LHD without Entry and Start System) C
      DTC (CAN communication system DTC) is output (for RHD with Entry and Start System) D
      DTC (CAN communication system DTC) is output (for RHD without Entry and Start System) E

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    D

    GO TO CAN COMMUNICATION SYSTEM Click here

    E

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

    USE SIMULATION METHOD TO CHECK Click here