LEXUS PARKING ASSIST-SENSOR SYSTEM, Diagnostic DTC:U0142, U0155

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

DESCRIPTION

These DTCs are stored when the clearance warning ECU*1 or parking assist ECU*2 can not receive and recognize several signals via the CAN communication system.


DTC No. DTC Detection Condition Trouble Area
U0142 A problem with the destination 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.

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC (CAN communication system DTC) is output A
      No DTC is output B

    B
    A