For 1990-2009 cars

Important: Review the system operation in order to familiarize yourself with the system functions. Refer to the following procedures:

• | Automatic Door Lock System Description

• | Power Windows Operation

• | Power Sliding Door (PSD) Description

• | Power Sliding Door (PSD) Operation

• | Power Door Locks Operation

• | Door Ajar Indicator Operation

• | Outside Mirrors Operation

### Visual/Physical Inspection

• | Inspect for aftermarket devices which could affect the operation of the door locks, door ajar indicator, mirrors, power sliding door, and windows systems. 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 Locks

For symptom diagnosis refer to one of the following:

• | Automatic Door Locks Inoperative

• | Power Door Locks Inoperative

• | Power Door Locks Switch Inoperative - One

• | Power Door Locks Inoperative - One Motor

• | Power Door Locks Switch Lock Function Inoperative - One

• | Power Door Locks Switch Unlock Function Inoperative - One

#### Indicators

For symptom diagnosis refer to one of the following:

• | DOOR AJAR Message Always On

• | DOOR AJAR Message Inoperative

#### Mirrors

For symptom diagnosis refer to one of the following:

• | Heated Mirrors Always On refer to Defoggers and Heated Mirrors Always On

• | Heated Mirrors Inoperative

• | Power Mirrors Inoperative

• | Power Mirrors Inoperative - One

• | Power Mirrors Inoperative in Left/Right Direction - One

• | Power Mirrors Inoperative in Up/Down Direction - One

#### Power Sliding Door

For symptom diagnosis refer to one of the following:

• | Power Sliding Door (PSD) Introduction

• | Power Sliding Door (PSD) Diagnostic Information

#### Windows

For symptom diagnosis refer to one of the following:

• | Power Windows Inoperative - All

• | Power Window Inoperative - Left Side Front

• | Power Window Inoperative - Right Side Front

• | Power Window Express Down Function Inoperative