Meter / Gauge System

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

DTC 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 an intelligent tester or a Techstream to the DLC3.
(b) Turn the ignition switch on (IG) and turn the tester on.
(c) Check for DTCs and note any codes that are output .
(d) Clear the DTC .
(e) Recheck for DTC .
Result:






B -- USE SIMULATION METHOD TO CHECK
A -- GO TO CAN COMMUNICATION SYSTEM