GM Service Manual Online
For 1990-2009 cars only

Important: 

  1. Perform the Diagnostic System Check - Door Systems in order to verify that the following are true:
  2.    • There are no DTCs set.
       • The control module(s) can communicate via the serial data link.
  3. Review the system operation in order to familiarize yourself with the system functions.
  4.    • Refer to Power Door Locks Description and Operation .
       • Refer to Outside Mirror Description and Operation .
       • Refer to Power Windows Description and Operation .

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

    •  Automatic Door Locks Inoperative
    •  Heated Mirrors Inoperative
    •  Power Door Lock Inoperative - Driver Door
    •  Power Door Locks Inoperative - Passenger Door
    •  Power Mirrors Inoperative
    •  Power Windows Inoperative - All
    •  Power Window Inoperative - Driver Door
    •  Power Window Inoperative - Passenger Door
    •  Power Window Lockout Function Inoperative