Symptoms - Doors. GMC Truck TopKick C-Series (Conventional) C6/C7/C8 2006

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2006 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 General Information 🢒 Vibration Diagnosis and Correction 🢒 Symptoms - Doors

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

•	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 Door System. 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 Lockout 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 Mirrors Inoperative

•	Heated Mirrors Inoperative

•	Heated Mirrors Switch Indicator Inoperative