Visual/Physical Inspection
- Inspect for aftermarket devices which could affect the operation of the audible warnings, driver information center (DIC), or instrument panel cluster (IPC). Refer to Checking Aftermarket Accessories .
- 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.