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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1423 (Door System, Mirror System & Window System) >> Diagnostic Information and Procedures >> Symptoms - Doors >> Notes

Symptoms - Doors: Notes

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. 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 tables.
  1. Perform the Diagnostic System Check - Door 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.
  2. Review the system operation in order to familiarize yourself with the system functions: