TOYOTA PARKING ASSIST-SENSOR SYSTEM(w/ Multi-display), Diagnostic DTC:U0100, U0101, U0142, U0155

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

DESCRIPTION

These DTCs are stored when the clearance warning ECU cannot receive and recognize certain signals via the CAN communication system.

DTC Code DTC Detection Condition Trouble Area
U0100 A problem with the engine information signal from the ECM CAN communication system
U0101 A problem with the shift position information signal from the power management control ECU CAN communication system
U0142 A problem with the vehicle information signal from the main body ECU (multiplex network body ECU) CAN communication system
U0155 A problem with the vehicle speed information signal from the combination meter assembly 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 FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

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

    A

    GO TO CAN COMMUNICATION SYSTEM Click here

    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

    USE SIMULATION METHOD TO CHECK Click here