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 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 .
(d) Clear the DTC .
(e) Recheck for DTC .
Result:






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