Visual/Physical Inspection
WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect for aftermarket devices which could affect the operation of the audible warnings, DIC, or IPC. Refer to CHECKING AFTER MARKET ACCESSORIES in Wiring Systems.
- Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
- For any indicator or message relating to fluid level, perform a visual inspection of the fluid level before beginning diagnosis.
- Verify that the indicators and the message display works properly during the displays test.