Symptoms-Lighting Systems: Notes

WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

Important: The following steps must be completed before using the symptom table.

Perform the DIAGNOSTIC SYSTEM CHECK-LIGHTING SYSTEMS before using the Symptom Tables in order to verify that all of the following are true:
- There are no DTCs set.
- The control modules can communicate via the serial data link.
Review the system description and operation in order to familiarize yourself with the system functions. Refer to INTERIOR LIGHTING SYSTEMS DESCRIPTION AND OPERATION and EXTERIOR LIGHTING SYSTEMS DESCRIPTION AND OPERATION .