For 1990-2009 cars only
Review the system operation in order to familiarize yourself with the system functions. Refer to Special Tools .
Visual/Physical Inspection
| • | Inspect for aftermarket devices which could affect the operation of the radio. Refer to Checking Aftermarket Accessories in Wiring Systems. |
| • | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom. |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
For navigation related symptoms, refer to Symptoms - Navigation Systems .
