FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Transmission Control

DTC U0001 CAN COMMUNICATION MALFUNCTION

COMPONENT LOCATION:





GENERAL DESCRIPTION
The TCM can either receive data from the Engine Control Module or ABS control module, or it can send data to the ECM and ABSCM by using CAN communication. The CAN communication is one of the vehicle communication methods, which is now widely used to transfer the vehicle data.

DTC DESCRIPTION
When the TCM cannot read the data from the ECM through the CAN-BUS line, the TCM sets this code. CAN-BUS circuit malfunctioning or ECM can be a possible cause of this DTC.

DTC DETECTING CONDITION: