Test Description
WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
The number(s) below refer to the step number(s) on the diagnostic table.
- 2. Lack of communication may be due to a malfunction of the class 2 serial data circuit.
Courtesy of GENERAL MOTORS CORP.