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Symptoms - Stationary Windows: Notes

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: For the rear window defogger system, the following steps must be performed before using the symptom tables.
  1. Perform the Diagnostic System Check - Defogger  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.
  2. Review the rear window defogger system operation in order to familiarize yourself with the system functions. Refer to Rear Window Defogger Description and Operation .
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