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

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0129 Lost Communication with Brake System Control Module
U0131 Lost Communication with Power Steering Control Module
U0151 Lost Communication with Restraints Control Module

DESCRIPTION

The combination meter assembly communicates with the ECM, power management control ECU, skid control ECU, power steering ECU assembly and airbag sensor assembly via the CAN communication system.

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

When IG voltage is 9.5 V or more and the following condition is detected:


  • No communication with ECM continues for 2 seconds or more

  • ECM

  • Power management control ECU

  • CAN communication system

  • Combination meter assembly

 DTC stored
U0129 Lost Communication with Brake System Control Module

When IG voltage is 9.5 V or more and the following condition is detected:


  • No communication with skid control ECU continues for 3 seconds or more

  • Brake booster with master cylinder assembly (Skid control ECU)

  • CAN communication system

  • Combination meter assembly

 DTC stored
U0131 Lost Communication with Power Steering Control Module

When IG voltage is 9.5 V or more and the following condition is detected:


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

  • Power steering ECU assembly

  • CAN communication system

  • Combination meter assembly

 DTC stored
U0151 Lost Communication with Restraints Control Module

When IG voltage is 9.5 V or more and the following condition is detected:


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

  • Airbag sensor assembly

  • CAN communication system

  • Combination meter assembly

 DTC stored

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication DTCs are output.

      Click here

      Result
      Result Proceed to
      CAN communication DTCs are output. A
      CAN communication DTCs are not output. B

      Tech Tips

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


    A

    GO TO CAN COMMUNICATION SYSTEM Click here

    B

    USE SIMULATION METHOD TO CHECK Click here