1999 Pontiac Grand Am Car Alarm Wiring Diagram

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Whether your an expert Pontiac Grand Am car alarm installer, Pontiac Grand Am performance fan or a novice Pontiac Grand Am enthusiast with a 1999 Pontiac Grand Am, a Pontiac Grand Am car alarm wiring diagram can save yourself a lot of time. One of the most time consuming tasks with installing an after market car alarm, car security, car remote start, automatic remote starter, shock sensor, tilt sensor, car alarm sensor or any auto alarm is identifying the correct color car security wires for a 1999 Pontiac Grand Am headlight bulb size you need for your low beam or high beam and save time. Also, find your other car light bulb sizes including your fog light, reverse light, turn signal, brake light and more. It’s that easy!

The Modified Life staff has taken all its Pontiac Grand Am car alarm wiring diagrams, Pontiac Grand Am car security wiring diagrams, Pontiac Grand Am car alarm wire diagrams, Pontiac Grand Am car security wiring schematics, Pontiac Grand Am car security diagrams, Pontiac Grand Am remote starter wiring diagrams and cataloged them online for our visitors to use for free. Our automotive wiring diagrams allow you to enjoy your new auto security electronics rather than spend countless hours trying to figure out which wires goes where.

Feel free to use any Pontiac Grand Am auto alarm wiring diagram that is listed on Modified Life but keep in mind that all information here is provided “as is” without any warranty of any kind and most of the auto security wiring diagrams listed on our enthusiast website are submitted by the Modified Life community. Use of the wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 1999 Pontiac Grand Am.

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1999 Pontiac Grand Am Car Alarm Wiring Diagram

Battery Constant 12v+ Positive Wire (+): Red (You will need to remove the radio to get to the back of the ignition switch on this vehicle. In some cases it may be necessary to remove the instrument cluster to access the ignition switch harness.)
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness

Starter Positive Wire (+): Yellow (You will need to remove the radio to get to the back of the ignition switch on this vehicle. In some cases it may be necessary to remove the instrument cluster to access the ignition switch harness.)
Starter Positive Wire Location: Ignition Switch Harness

Ignition Positive Wire (+): Pink (You will need to remove the radio to get to the back of the ignition switch on this vehicle. In some cases it may be necessary to remove the instrument cluster to access the ignition switch harness.)
Ignition Positive Wire Location: Ignition Switch Harness

Second Ignition Positive Wire (+): Dark Green (You will need to remove the radio to get to the back of the ignition switch on this vehicle. In some cases it may be necessary to remove the instrument cluster to access the ignition switch harness.)
Second Ignition Positive Wire Location: Ignition Switch Harness

Accessory Positive Wire (+): Orange (You will need to remove the radio to get to the back of the ignition switch on this vehicle. In some cases it may be necessary to remove the instrument cluster to access the ignition switch harness.)
Accessory Positive Wire Location: Ignition Switch Harness

Parking Light Positive Wire (+): Brown
Parking Light Positive Wire Location: In Passenger Kick Panel

Power Door Lock Negative Wire (-): White (1-Wire Door Lock System). This vehicle uses a 1-wire door locking system that requires a (-) negative through a 1500 ohm resistor to unlock and a straight (-) negative to lock, some units will also require (2) extra relays.
Power Door Lock Negative Wire Location: At Black Plug, In Drivers Kick Panel

Power Door Unlock Negative Wire (-): Same Wire, See Diagram
Power Door Unlock Negative Wire Location: See Diagrams

Door Trigger Positive Wire (+): The light green/black (-) is for the drivers door this wire is located in the drivers kick panel. The passenger door wire is a light blue (-) is located in the passengers kick panel when connecting to an alarm system, use both door trigger wires and diode.
Door Trigger Positive Wire Location: In Drivers Kick Panel And Passenger Kick Panel

Domelight Supervision Wire: Light Green/Black (Requires Relay)
Domelight Supervision Wire Location: In Drivers Kick Panel

Trunk Release Negative Wire (-): Black/White (Requires Relay)
Trunk Release Negative Wire Location: In Drivers Kick Panel

Horn Negative Negative Wire (-): Black (-)
Horn Negative Negative Wire Location: At Steering Column Harness

Tachometer Wire Negative Wire (-): White
Tachometer Wire Negative Wire Location: At ECM. The tach wire is a white wire at the ECM (electronic control module) located to the left of the steering column in the large harness covered with gray tape heading out of the firewall. There will be at least 4 or 5 white wires, you will need to test all these wires to find the right tachometer wire.

Brake Light Positive Wire (+): Light Blue
Brake Light Positive Wire Location: At Switch Above Brake Pedal

Factory Anti-Theft Wire (-): Yellow (+) and Black (-) and White (Not Used)
Factory Anti-Theft Wire Location: GM Passlock 2 System, Wires Are At The Top Of The Ignition Switch Tumbler

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