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2002 Chevrolet Impala Car Alarm Wiring Diagram

2002 Chevrolet Impala Alarm Wires

Find the right alarm wire colors, locations, and polarity with this 2002 Chevrolet Impala alarm wiring diagram. This will help you install your car alarm wiring correctly.

Application Wire Color and Location
Battery Constant 12v+ Positive Wire (+) Red (To get to the ignition switch harness, you must remove the radio without unplugging the radio. Make sure you catch all ignition wires at the back of the ignition switch.)
Battery Constant 12v+ Positive Wire Location Ignition Switch Harness
Starter Positive Wire (+) Yellow (To get to the ignition switch harness, you must remove the radio without unplugging the radio. Make sure you catch all ignition wires at the back of the ignition switch.)
Starter Positive Wire Location Ignition Switch Harness
Ignition Positive Wire (+) Pink (To get to the ignition switch harness, you must remove the radio without unplugging the radio. Make sure you catch all ignition wires at the back of the ignition switch.)
Ignition Positive Wire Location Ignition Switch Harness
Second Ignition Positive Wire (+) Green (To get to the ignition switch harness, you must remove the radio without unplugging the radio. Make sure you catch all ignition wires at the back of the ignition switch.)
Second Ignition Positive Wire Location Ignition Switch Harness
Accessory Positive Wire (+) Orange (To get to the ignition switch harness, you must remove the radio without unplugging the radio. Make sure you catch all ignition wires at the back of the ignition switch.)
Accessory Positive Wire Location Ignition Switch Harness

2002 Chevrolet Impala Alarm Sensor Wires

Find the right alarm sensor wire colors, locations, and polarity with this 2002 Chevrolet Impala alarm sensor wire chart. This will help you connect all your car alarm sensors correctly.

Application Wire Color and Location
Parking Light Negative Wire (-) White (An extra relay is need for the (-) negative parking light isolation circuit on this vehicle.)
Parking Light Negative Wire Location At Back Of Parking Light Switch Or BCM, Pink 24-Pin Plug. The BCM (body control module) is located above the brake pedal. It is a plastic box with (3) plugs that face the firewall of the vehicle.
Parking Light Positive Wire (+) Do Not Use.
Parking Light Positive Wire Location N/A
Power Door Lock Negative Wire (-) Orange/Black (1-Wire System). This vehicle is a 1-wire door locking system, a straight (-) negative will unlock the doors and a (-) negative through a 480 ohm resistor will lock the doors.
Power Door Lock Negative Wire Location At BCM, Gray 24-Pin Plug. The BCM (body control module) is located above the brake pedal. It is a plastic box with (3) plugs that face the firewall of the vehicle.
Power Door Unlock Negative Wire (-) Same Wire As Above
Power Door Unlock Negative Wire Location Same as Above
Door Trigger Negative Wire (-) This vehicle has (2) door triggers the blue (-) is for the drivers door and the blue/white (-) catches all other doors. When connecting to an alarm system us both wires and diode isolate.
Door Trigger Negative Wire Location At BCM, Gray 16-Pin Plug. The BCM (body control module) is located above the brake pedal. It is a plastic box with (3) plugs that face the firewall of the vehicle.
Dome Light Supervision Wire (-) Blue
Dome Light Supervision Wire Location At BCM, Gray 16-Pin Plug. The BCM (body control module) is located above the brake pedal. It is a plastic box with (3) plugs that face the firewall of the vehicle.
Trunk Release Negative Wire (-) Black (Requires Relay)
Trunk Release Negative Wire Location At Trunk Release Switch
Horn Negative Wire (-) Black
Horn Negative Wire Location At Steering Column Harness
Tachometer Wire Negative Wire (-) White
Tachometer Wire Negative Wire Location At Ignition Coil
Brake Light Positive Wire (+) White
Brake Light Positive Wire Location At Switch Above Brake Pedal
Factory Alarm Disarm Wire (-) Light Green
Factory Alarm Disarm Wire Location At BCM, Gray 16-Pin Plug. The BCM (body control module) is located above the brake pedal. It is a plastic box with (3) plugs that face the firewall of the vehicle.
Factory Anti-Theft System Yellow (+) And Black (-) And White (Not Used)
Factory Anti-Theft System Location GM Passlock 2 System, Wires Are At The Top Of The Ignition Switch Tumbler

Feel free to use any 2002 Chevrolet Impala alarm wiring diagram that is listed here but keep in mind that all information here is provided as is without any warranty of any kind. Use of this 2002 Chevrolet Impala car alarm wire chart is at your own risk. Always verify all wires, wire colors and connection points before applying any information found here to your 2002 Chevrolet Impala.

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