Pontiac Grand AM 2003

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=16935
Printed Date: July 13, 2025 at 5:01 AM

Topic: Pontiac Grand AM 2003

Posted By: Mr_Fusion
Subject: Pontiac Grand AM 2003
Date Posted: July 31, 2003 at 1:50 PM

I am looking for a wiring diagram for the above car...remote start and security. thanks!

Replies:

Posted By: draasch
Date Posted: July 31, 2003 at 5:31 PM

Make:   Pontiac
Model: Grand Am
Year:    2003
This Database Was Last Updated On:    6/9/03
Index #: 7289

Alarm
Constant 12 volts RED IGNITION SWITCH HARNESS
Ignition 12 volts PINK IGNITION SWITCH HARNESS
Starter YELLOW IGNITION SWITCH HARNESS
Dome Light YELLOW (-) DRIVERS KICK *
Trunk Pin Switch ORANGE / BLACK (-) DRIVERS KICK BODY HARNESS
Parking Lamp BROWN (+) AT LIGHT SWITCH HARNESS
Power Lock WHITE DRIVER KICK (See Tech)
Power Unlock SINGLE WIRE SYSTEM PANEL #217

* Opitional Door Triggers Located At Body Control Module Under Passenger Dash. L GREEN/ BLACK (-) Covers Driver Door, L BLUE (-) Covers All Other Doors. Diode Isolation Needed, Cathode (Band) Side Of Diode Faces OEM Wires. #217- See Single Wire Resistor Door Lock Diagram

Remote Start
Tach Signal VIO/WHT OR WHITE TOP OF ENGINE ON COIL
Ignition #2 GREEN IGNITION SWITCH HARNESS #238
Ignition #3
Accessory ORANGE IGNITION SWITCH HARNESS
Neutral Safety ORG/BLK (-) BEHIND DRIVER'S DASH LEFT OF COLUMN
Brake Light L BLUE (+) AT SWITCH ABOVE BRAKE PEDAL
Reverse Light LT GREEN OR GRAY IN DRIVER'S KICK PANEL
Rear Window Defrost

#238 - See G.M. Passlok II Diagram. Pass Lock Wires YELLOW And BLACK/ WHITE (Has Been Reported As BLACK Instead)

Doorlocks Are Found As A Single Wire System. A Negative Pusle On The WHITE Wire In The Driver Kick Panel Will Lock The Doors. A Negative Pulse Thru A 1.5K Ohm Resistor On The Same WHITE Wire Will Unlock The Doors.

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Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt

Posted By: NowYaKnow
Date Posted: July 31, 2003 at 10:00 PM

Looks pretty accurate except you won't find the brown parking light wire at the switch/stalk. You can find the horn (black -), parking lights (brown +), constant (red +), ignition (pink +), starter (yellow +) in a harness high up in the left kick going into the firewall. Offhand there is probably two harnesses running parallel to each other going to the firewall you can get most of your wires in the one I believe the one that is higher up, except for the green ignition 2 wire and your passlock wires which you will have to go to the ignition switch for. (might have to pull the radio for access) Then your locks (white single wire), trunk release (BLACK/ white), and driver door trigger (GREEN/ black) can be found in the driver kick coming in from the door jam harness. Also if you don't mind a delay you can find the white (from what I remember) domelight wire in the drivers door sill harness to use to pickup all doors. Good luck

Posted By: Mr_Fusion
Date Posted: July 31, 2003 at 10:20 PM

I just want to make sure that this installation can be done without any Databus interface modules...is this true?

Posted By: Velocity Motors
Date Posted: August 01, 2003 at 7:38 AM

It is true, but it will take longer for you to hook up the relays for bypassing. Usung the modules will reduce the time by about 60 %.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA