METER / GAUGE SYSTEM, Diagnostic DTC:U0100, U0129, U0131, U0151, U023A

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 Airbag ECU
U023A Lost Communication with Front Camera Module

DESCRIPTION

The combination meter communicates with the ECM, brake booster with master cylinder assembly (skid control ECU), power steering ECU and airbag ECU assembly via the CAN communication system.

DTC No. DTC Detection Condition Trouble Area
U0100 ECM communication error

  • CAN communication system

  • ECM
U0129 Skid control ECU communication error

  • CAN communication system

  • Brake booster with master cylinder assembly (Skid control ECU)
U0131 Power steering ECU communication error

  • CAN communication system

  • Power steering ECU
U0151 Center airbag sensor communication error

  • CAN communication system

  • Airbag ECU assembly
U023A Lost Communication with Front Camera Module

  • CAN communication system

  • Pre-crash safety city sensor

PROCEDURE


  1. CONFIRM DTC OUTPUT


    1. Check if a CAN communication system DTC is output.


      Result Proceed to
      CAN communication DTC is not output A
      DTC is output (w/o Toyota Safety Sense) B
      DTC is output (w/ Toyota Safety Sense) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here