Meter / Gauge System

METER: METER / GAUGE SYSTEM: U0100: Lost Communication with ECM / PCM "A"
U0100 - Lost Communication with ECM / PCM "A"

DESCRIPTION

The combination meter assembly and the ECM exchange signals through the CAN communication system.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CONFIRM DTC OUTPUT

(a) Connect a Techstream to the DLC3.

(b) Turn the ignition switch on and turn the tester on.

(c) Check for DTCs and note any codes that are output Meter / Gauge System.

(d) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

(e) Recheck for DTC Reading and Clearing Diagnostic Trouble Codes.

Result:





B -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting

A -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting