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

DTC Code DTC Name
U0100 Lost Communication With ECM/PCM "A"
U0101 Lost Communication with ECM
U0142 Lost Communication With Body Control Module "B"
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module

DESCRIPTION

These DTCs are stored when the clearance warning ECU assembly cannot receive and recognize several signals via the CAN communication line.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0073 Control Module Communication Bus "A" Off Control module communication bus off CAN communication system
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module Lost communication with 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 harnesses of each ECU.

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Clear the DTCs


      Body Electrical > IPA/ICS/Clearance Sonar > Clear DTCs

    2. Check for CAN communication system DTCs


      Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes
      Result
      Result Proceed to
      CAN communication system DTCs are output A
      No CAN communication system DTCs are output B

    A

    GO TO CAN COMMUNICATION SYSTEM Click here

    B

    USE SIMULATION METHOD TO CHECK Click here