FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Engine Control System

DTC U0001 High Speed CAN Communication Bus

DESCRIPTION

DTC Detection Condition:




The engine control unit and the transmission control unit are located inside the ECM. The engine control unit communicates with the transmission control unit via the Controller Area Network (CAN).

If there is a problem in this intercommunication, the ECM sets the DTC.

Monitor Strategy:




Typical Enabling Conditions:




Typical Malfunctions Thresholds:




MONITOR DESCRIPTION

Step 1:




INSPECTION PROCEDURE