METER / GAUGE SYSTEM, Diagnostic DTC:U0100, U0129, U0131, U0142, U0151

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0129 Lost Communication with Skid Control ECU
U0131 Lost Communication with Electric Power Steering ECU
U0142 Lost Communication with Main Body ECU
U0151 Lost Communication with Airbag ECU

DESCRIPTION


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

Both conditions are met:


  • IG voltage is 10.5 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 Skid Control ECU

Both conditions are met:


  • IG voltage is 10.5 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
U0131 Lost Communication with Electric Power Steering ECU

Both conditions are met:


  • IG voltage is 10.5 V or higher.

  • No communication with the power steering ECU assembly continues for 3 seconds or more.

  • Power steering ECU assembly

  • CAN communication system

  • Combination meter assembly
U0142 Lost Communication with Main Body ECU

Both conditions are met:


  • IG voltage is 10.5 V or higher.

  • No communication with the main body ECU (multiplex network body ECU) continues for 3 seconds or more.

  • Main body ECU (Multiplex network body ECU)

  • CAN communication system

  • Combination meter assembly
U0151 Lost Communication with Airbag ECU

Both conditions are met:


  • IG voltage is 10.5 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. Check for DTCs.

      Click here


      Body Electrical > Combination Meter > Trouble Codes

      Tech Tips

      If CAN communication system DTC U0100, U0129, U0131, U0142, or U0151 and another DTC are output at the same time, perform troubleshooting for CAN communication system DTC U0100, U0129, U0131, U0142, or U0151 first.

      Result
      Proceed to
      CAN communication system DTC is not output
      CAN communication system DTC is output (for LHD)
      CAN communication system DTC is output (for RHD)

    CAN communication system DTC is not output

    USE SIMULATION METHOD TO CHECK Click here

    CAN communication system DTC is output (for LHD)

    GO TO CAN COMMUNICATION SYSTEM Click here

    CAN communication system DTC is output (for RHD)

    GO TO CAN COMMUNICATION SYSTEM Click here