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 communicates with the ECM via the CAN communication lines (CAN No. 1 Bus).






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CONFIRM DTC OUTPUT
(a) Connect Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the tester on.
(d) Clear the stored DTCs by selecting the following menu items on the tester: Body Electrical / Trouble Codes.
(e) Drive the vehicle at more than 5 km/h (3.1 mph) for at least 60 seconds.
(f) Stop the vehicle.
(g) Check for DTCs Diagnosis System.
Result:





HINT: 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 -- USE SIMULATION METHOD TO CHECK
A -- GO TO CAN COMMUNICATION SYSTEM