METER / GAUGE SYSTEM, Diagnostic DTC:U0100

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
U0100

When either of following conditions is detected:


  1. Vehicle speed 5 km/h (3.1 mph) or more and IG voltage 10.5 V or more

  2. No communication with ECM 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

A01GYEQE50

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check for DTC Click here [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 U0100 and another DTC are output at the same time, perform troubleshooting for the CAN communication system DTC U0100 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