GM Service Manual Online
For 1990-2009 cars only

Important: 

  1. Perform the Diagnostic System Check - Power Door Systems before using the Symptom Tables in order to verify that all of 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. Refer to the following:
  4.    • Power Door Locks Operation
       • Power Mirrors Operation
       • Power Windows Operation

Visual/Physical Inspection

    • Inspect for aftermarket devices which could affect the operation of the power windows, power door locks, or power mirrors. Refer to Checking Aftermarket Accessories in Wiring Systems.
    • Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Symptom List

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

    •  DOOR AJAR Message Always On
    •  DOOR AJAR Message Inoperative
    •  Heated Mirrors Inoperative
    •  Parallel Park Mode Inoperative
    •  Power Door Locks Switch Inoperative - One
    •  Power Door Locks Inoperative - One Motor
    •  Power Mirrors Inoperative - One
    •  Power Mirrors Inoperative in Left/Right Direction - Left Side
    •  Power Mirrors Inoperative in Left/Right Direction - Right Side
    •  Power Mirrors Inoperative in Up/Down Direction - Left Side
    •  Power Mirrors Inoperative in Up/Down Direction - Right Side
    •  Power Mirror Folding Inoperative
    •  Power Mirrors - Memory Inoperative in Any Direction
    •  Power Mirrors - Memory Inoperative in One Direction
    •  Outside Mirrors Automatic Day-Night Feature Inoperative
    •  Power Windows Inoperative - All
    •  Power Window Inoperative - Left Side Front
    •  Power Windows Inoperative - One
    •  Power Window Express Down Function Inoperative
    •  Power Windows Inoperative from Left Front Switch
    •  Power Window Lockout Function Inoperative