LEXUS PARKING ASSIST-SENSOR SYSTEM, Diagnostic DTC:U0101,U0142 and U0155

DTC Code DTC Name
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 No.

Detection Item

DTC Detection Condition

Trouble Area

U0101

Lost Communication With TCM

A problem with the engine information signal from the ECM.

CAN communication system

U0142

Lost Communication with Body Control Module "B"

A problem with the vehicle information signal from the main body ECU (multiplex network body ECU).

CAN communication system

U0155

Lost Communication with Instrument Panel Cluster Control Module (Combination Meter)

A problem with the vehicle speed information signal from the combination meter assembly

CAN communication system

Tip:

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

      Body Electrical > Clearance Sonar > Clear DTCs

    2. Check for DTCs.

      Click here

      Body Electrical > Clearance Sonar > Trouble Codes

    Result

    Result

    Proceed to

    DTC (CAN communication system DTC) is output

    A

    No DTC is output

    B

    A

    GO TO CAN COMMUNICATION SYSTEM

    B

    USE SIMULATION METHOD TO CHECK