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Symptoms - Lighting Systems: Notes

WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The following steps must be completed before doing the Symptom tables.
  1. Perform the Diagnostic System Check - Vehicle .
    • No DTCs are set.
    • The control modules can communicate via the serial data link.
  2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following:
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