TOYOTA PARKING ASSIST-SENSOR SYSTEM, Diagnostic DTC:U0100, U0101, U0142, U0155

DTC Code DTC Name
U0100 Lost Communication with ECM
U0101 Lost Communication With TCM
U0142 Lost Communication with Main Body ECU
U0155 Lost Communication with Instrument Panel Cluster Control Module (Combination Meter)

DESCRIPTION

When the clearance warning ECU self-diagnosis determines that the CAN communication system is malfunctioning, this DTC is stored.

DTC Code DTC Detection Condition Trouble Area
U0100 Lost communication with ECM. CAN communication system
U0101 Lost communication with TCM. CAN communication system
U0142 Lost communication with main body ECU (multiplex network body ECU). CAN communication system
U0155 Lost communication with the Instrument Panel Cluster (IPC) control module. CAN communication system

Tech Tips

When 2 or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC U0100, U0101, U0142 and U0155 are not output. A
      DTC U0100, U0101, U0142 or U0155 are output (for LHD). B
      DTC U0100, U0101, U0142 or U0155 are output (for RHD). C

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here