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Home >> Saturn >> 2005 >> Relay AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Computer/Integrating Systems) >> Diagnostic Information and Procedures >> Scan Tool Does Not Communicate with Class 2 Device >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2005 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

The PCM is the only module on the class 2 serial data buss on this vehicle. The most likely cause of the buss failure will be a short or open.