Symptoms - Doors. GMC Truck Safari

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2001 🢒 Safari - 4WD 🢒 Body and Accessories 🢒 Data Link Communications 🢒 Symptoms - Doors

Important: The following steps must be completed before using the symptom tables.

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 module(s) can communicate via the serial data link.

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

•	Power Windows Description and Operation

•	Power Door Locks Description and Operation

•	Outside Mirror Description and Operation

•	Inspect for aftermarket devices which could affect the operation of the power door lock, power window and mirror 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.

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

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

•	Power Windows Inoperative - All

•	Power Window Express Down Function Inoperative

•	Power Window Inoperative - Driver Door

•	Power Window Inoperative - Passenger Door

•	Power Door Locks Inoperative - All Doors and Switches

•	Power Door Locks Inoperative - One Door or Switch

•	Power Door Lock Inoperative - Driver Door

•	Power Door Locks - Lock Inoperative Unlock Operates

•	Power Door Locks - Unlock Inoperative Lock Operates

•	Power Door Locks Inoperative - Lockout Feature

•	Automatic Door Locks Inoperative

•	Power Mirrors Inoperative