Car Alarm Wiring Diagram and Car Wire Schematics – 2002 Audi A4


Whether your an expert installer or a novice enthusiast with a 2002 Audi A4, an automotive wiring diagram can save yourself time and headaches. One of the most time consuming tasks with installing a car alarm, remote car starter, car security system or any mobile electronics is identifying the correct wires for a 2002 Audi A4.

The Modified Life staff has put their heads together to create an invaluable resource containing car alarm wiring diagram, remote car starter wiring diagram, car wiring diagram and car security wiring diagram. Feel free to use any car alarm wiring diagram or remote car starter 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. 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 2002 Audi A4.

If you can’t find your car alarm wiring diagram or remote start wire diagram on Modified Life, please feel free to post a car wiring diagram request (Car Alarm Wiring Diagram Request Page) and we’ll do our best to find you the information you need for your mobile installation.

2002 Audi A4 Car Alarm and Remote Car Starter Wiring Information

Constant 12V+ Wire: Red
Constant 12V+ Wire Location: Ignition Switch Harness

Starter Wire (+): Red/Black
Starter Wire Location: Ignition Switch Harness

Second Starter Wire (+): Blue or Red/Black
Start Wire Location: Ignition Switch Harness

Ignition Wire (+): Black
Ignition Wire Location: Ignition Switch Harness

Second Ignition Wire: N/A
Second Ignition Wire Location: N/A

Accessory Wire: Yellow/Black
Accessory Wire Location: Ignition Switch Harness

Second Accessory Wire: N/A
Accessory Wire Location: N/A

Tachometer Wire: NOT Red/Blue or Black/Blue
Tachometer Wire Location: Any fuel injector.

Key Sense Wire: Red
Key Sense Location: Ignition Switch Harness

Door Lock Wire (-): Blue/White
Door Lock Wire Location: Driver door module in door.

Door Unlock Wire (-): Purple/Green (double pulse)
Door Unlock Wire Location: Driver door module in door

Door Trigger Wire (-): Use dome supervision wire
Door Trigger Wire Location: N/A

Dome Supervision Wire: Brown/White
Dome Supervision Wire Location: CCM, conn 1, pin 2. The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.

Headlights Wire (-): N/A
Headlights Wire Location: N/A

Parking Light Positive Wire (+): Gray
Parking Light Positive Wire Location: Headlight Switch (May have to interrupt the purple wire at the headlight switch in order for the lights to work.)

Parking Light Negative Wire (-): N/A
Parking Light Negative Wire Location: N/A

Trunk/Hatch Pin Wire (-): White/Yellow
Trunk/Hatch Pin Wire Location: CCM, conn 5, pin 11. The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.

Hood Pin Wire (-): Brown/Purple
Hood Pin Wire Location: CCM, conn 4, pin 20. The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.

Trunk/Hatch Release Wire (-): Yellow/Red
Trunk/Hatch Release Wire Location: CCM, conn 1, pin 6. The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.

Factory Alarm Arm Wire: Arms with lock.
Factory Alarm Arm Wire Location: N/A

Factory Alarm Disarm Wire (-): Disarms with unlock.
Factory Alarm Disarm Wire Location: N/A

Factory Alarm Disarm but No Unlock Wire (-): N/A
Factory Alarm Disarm Wire Location: N/A

Horn Trigger Wire (-): Black/White
Horn Trigger Wire Location: Driver kick panel, red 17 pin plug.

Brake Wire (+): Red/Black
Brake Wire Location: Brake Pedal Switch

Emergency Parking Brake Wire (+): Brown/White
Emergency Parking Brake Wire Location: CCM, conn 3, pin 2. The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.

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