2002 Chevrolet Impala Car Alarm/Remote start Wiring Diagram
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
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 uses 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.
Domelight Supervision Wire (-): Blue
Domelight 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