METER / GAUGE SYSTEM, Diagnostic DTC:U0100, U0129, U0131, U0142, U0151, U0163, U023A, U1104

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0129 Lost Communication with Skid Control ECU
U0131 Lost Communication with Power Steering Control Module
U0142 Lost Communication with Body Control Module "B"
U0151 Lost Communication with Airbag ECU
U0163 Lost Communication with Navigation Control Module
U023A Lost Communication with Front Camera Module
U1104 Lost Communication with Driving Support ECU

DESCRIPTION

The combination meter sub-assembly communicates with the ECM or hybrid vehicle control ECU assembly, brake booster with master cylinder assembly (skid control ECU), power steering ECU assembly, main body ECU (multiplex network body ECU), airbag ECU assembly, navigation receiver assembly*1, forward recognition camera*2 and driving support ECU assembly*2 via CAN communication.

DTC No. DTC Detection Condition Trouble Area
U0100

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

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

  • ECM

  • Hybrid vehicle control ECU assembly

  • CAN communication system

  • Combination meter sub-assembly
U0129

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


  • No communication with brake booster with master cylinder assembly (skid control ECU) continues for 3 seconds or more

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

  • CAN communication system

  • Combination meter sub-assembly
U0131

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 sub-assembly
U0142

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


  • No communication with 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 sub-assembly
U0151

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


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

  • Airbag ECU assembly

  • CAN communication system

  • Combination meter sub-assembly
U0163*1

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


  • No communication with navigation receiver assembly continues for 3 seconds or more

  • Navigation receiver assembly

  • CAN communication system

  • Combination meter sub-assembly
U023A*2

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


  • No communication with forward recognition camera continues for 10 seconds or more

  • Forward recognition camera

  • CAN communication system

  • Combination meter sub-assembly
U1104*2

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


  • No communication with driving support ECU assembly continues for 10 seconds or more

  • Driving support ECU assembly

  • CAN communication system

  • Combination meter sub-assembly

PROCEDURE


  1. CONFIRM DTC OUTPUT


    1. Check if CAN communication DTCs are output Click here.(w/ Central Gateway ECU)

    2. Check if CAN communication DTCs are output Click here.(w/o Central Gateway ECU)

      Result
      Result Proceed to
      DTCs are output (w/ Central Gateway ECU) A
      DTCs are output (w/o Central Gateway ECU) B
      DTCs are not output C

    A

    GO TO CAN COMMUNICATION SYSTEM Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    USE SIMULATION METHOD TO CHECK Click here