For 1990-2009 cars only
Important: The following steps must be completed before using the symptoms tables.
Review the system operation in order to familiarize yourself with the system functions. Refer to the following procedures:
Visual/Physical Inspection
Several of the symptom procedures ask for a careful visual/physical inspection. This step is extremely important. It could lead to correcting a problem without further checks and can save valuable time.
These checks include the following:
| • | Inspect for aftermarket devices which could affect the operation of the lighting system. Refer to Checking Aftermarket Accessories . |
| • | Inspect the easily accessible or visible system components and harness connectors for obvious damage or conditions which could cause the symptom. |
| • | If only one lamp is inoperative, inspect and repair a poor connection or an open in the power feed or ground circuit before replacing the light bulb. Refer to Circuit Testing and Wiring Repairs . |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
