METER / GAUGE SYSTEM, Diagnostic DTC:U0129

DTC Code DTC Name
U0129 Lost Communication with Brake System Control Module

DESCRIPTION

The No. 1 meter ECU communicates with the skid control ECU via the CAN line.

DTC Code DTC Detection Condition Trouble Area
U0129

When either of following conditions is detected:


  • 15 seconds have elapsed since engine started and IG voltage 10.5 V or more

  • No communication with skid control ECU continues for 3 seconds or more (No communication to ECM, skid control ECU or headlight swivel ECU assembly continues for 60 seconds or more)

 CAN communication system

WIRING DIAGRAM

A00100KE12
*1 CAN Line
*2 Skid Control ECU
*3 No. 1 Meter ECU

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check for DTC (See page [for LHD], Click here [for RHD]).

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

      Tech Tips

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


    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    Go to CAN COMMUNICATION SYSTEM Click here

    C

    Go to CAN COMMUNICATION SYSTEM Click here