Visual/Physical Inspection
- Inspect for aftermarket devices which could affect the operation of the Instrument Cluster or Audible Warning Systems. Refer to CHECKING AFTERMARKET ACCESSORIES in WIRING SYSTEMS article.
- Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
- Inspect the reservoirs for the proper fluid level before beginning diagnosis.
- Inspect the applicable reservoir for the proper fluid level related to the indicator or message.
- Verify that the indicators work properly during the displays test.