Visual/Physical Inspection
WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect for aftermarket devices that could affect the operation of the serial data communications systems. Refer to CHECKING AFTERMARKET ACCESSORIES .
- Inspect the easily accessible systems or visible system components for obvious damage or conditions that could cause the symptom.