METER / GAUGE SYSTEM, Diagnostic DTC:U0129

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

DESCRIPTION

The combination meter communicates with the skid control ECU via the CAN line.

DTC Code DTC Detection Condition Trouble Area
U0129 When 15 seconds have elapsed after the engine is started and IG voltage is 10.5 V or more while no communication with the skid control ECU continues for 3 seconds or more (no communication with the ECM or skid control ECU continues for 60 seconds or more). CAN communication system

WIRING DIAGRAM

A01581LE12

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC


    1. Check for DTCs and note any codes that are output Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs Click here.

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

      Tech Tips

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


    B

    Go to CAN COMMUNICATION SYSTEM Click here

    C

    Go to CAN COMMUNICATION SYSTEM Click here

    A

    USE SIMULATION METHOD TO CHECK Click here