METER / GAUGE SYSTEM, Diagnostic DTC:U0100, U0129, U0151

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0129 Lost Communication with Brake System Control Module
U0151 Lost Communication with Restraints Control Module

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area
U0100 Lost Communication with ECM / PCM "A"

Both conditions are met:


  • The voltage at the IG power supply terminal of the combination meter assembly is between 11.5 V or higher.

  • No communication with the ECM continues for 2 seconds or more.

  • ECM

  • CAN communication system

  • Combination meter assembly
U0129 Lost Communication with Brake System Control Module

Both conditions are met:


  • The voltage at the IG power supply terminal of the combination meter assembly is between 11.5 V or higher.

  • No communication with the brake actuator assembly (skid control ECU) continues for 3 seconds or more.

  • Brake actuator assembly (skid control ECU)

  • CAN communication system

  • Combination meter assembly
U0151 Lost Communication with Restraints Control Module

Both conditions are met:


  • The voltage at the IG power supply terminal of the combination meter assembly is between 11.5 V or higher.

  • No communication with the airbag sensor assembly continues for 10 seconds or more.

  • Airbag sensor assembly

  • CAN communication system

  • Combination meter assembly

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Combination Meter > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.

      Click here


      Body Electrical > Combination Meter > Trouble Codes
      OK
      U0100, U0129 and U0151 are not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    GO TO CAN COMMUNICATION SYSTEM for LHD: Click here
    GO TO CAN COMMUNICATION SYSTEM for RHD: Click here