Meter / Gauge System

METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: U0100,U0129: Lost Communication with ECM / PCM "A"

DTC U0100 - Lost Communication with ECM / PCM "A"

DTC U0129 - Lost Communication with Skid Control ECU

DESCRIPTION

The combination meter assembly communicates with the ECM via the CAN communication system (CAN No. 1 Bus).





INSPECTION PROCEDURE

PROCEDURE

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





HINT: If CAN communication system DTC U0100 or U0129 and another DTC are output at the same time, perform troubleshooting for CAN communication system DTC U0100 or U0129 first.

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