Preliminary Information

IMPORTANT: The following items must be performed before attempting diagnosis by symptoms:

1. Perform the A 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 module(s) 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:
- Power Door Locks Operation
- Outside 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 Diagrams.
- 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 and Poor Connections in Diagrams.

Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
- Automatic Door Locks Inoperative
- DOOR AJAR Message Always On
- DOOR AJAR Message Inoperative
- Heated Mirrors Inoperative
- Power Door Locks Inoperative
- Power Door Locks - Lock mop, Unlock Operates
- Power Door Locks - Unlock mop, Lock Operates
- Power Door Locks Inoperative with Transmitter
- Power Door Locks Inoperative - Key Cylinder Switches
- Power Mirrors Inoperative
- Power Mirrors - Memory Recall Position Inaccurate
- Power Mirrors - Passenger Mirror Tilt Inoperative in Reverse
- Power Windows Inoperative - One
- Power Windows Inoperative from Driver Door Switch
- Power Windows Inoperative - Lockout Function