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Car Alarm and Remote Car Starter Wiring Diagram – 2004 BMW 325ci 325i 325xi 330ci 330i 330xi


Whether your an expert installer or a novice enthusiast with a 2004 BMW 325ci 325i 325xi 330ci 330i 330xi, 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 2004 BMW 325ci 325i 325xi 330ci 330i 330xi.

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 2004 BMW 325ci 325i 325xi 330ci 330i 330xi.

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.

2004 BMW 3 Series Car Alarm and Remote Car Starter Wiring Information

Constant 12V+ Wire: Red/Green & Red/Blue
Constant 12V+ Wire Location: Ignition Switch Harness

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

Second Starter Wire (+): N/A
Start Wire Location: N/A

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

Second Ignition Wire: Purple
Second Ignition Wire Location: Ignition Switch Harness

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

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

Tachometer Wire: Black
Tachometer Wire Location: Use Diagnostic Plug. (The diagnostic plug is on the passengers side of the engine compartment.)

Door Lock Wire (-): Blue/Red
Door Lock Wire Location: 54 pin plug, pin #22 at general module. (The general module is a white box located behind the glove box. The 54 pin plug is the center plug, and the 26 pin plug is the one on the left.)

Door Unlock Wire (-): White/Black (On some models, unlock may require a double pulse.)
Door Unlock Wire Location: 54 pin plug, pin #20 at general module. (The general module is a white box located behind the glove box. The 54 pin plug is the center plug, and the 26 pin plug is the one on the left.)

Door Trigger Wire (+): Red/Blue
Door Trigger Wire Location: 54 pin plug, pin #18 at general module. (The general module is a white box located behind the glove box. The 54 pin plug is the center plug, and the 26 pin plug is the one on the left.)

Dome Supervision Wire: Comes on with unlock.
Dome Supervision Wire Location: N/A

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

Parking Light Positive Wire (+): Need to remove the light switch module from the dash and pop off the front cover. A ribbon cable which connects the switch to the module will be exposed. With the switch facing towards you, you need to interrupt the fourth wire from the left with a relay. When interrupted the parking lights will come on.
Parking Light Positive Wire Location: N/A

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

Trunk/Hatch Pin Wire (-): White/Brown
Trunk/Hatch Pin Wire Location: Driver Kick Panel

Hood Pin Wire (-): Purple/Green
Hood Pin Wire Location: 26 pin plug, pin #7 at general module. (The general module is a white box located behind the glove box. The 54 pin plug is the center plug, and the 26 pin plug is the one on the left.)

Trunk/Hatch Release Wire (-): Gray/Green
Trunk/Hatch Release Wire Location: 54 pin plug, pin #17 at general module. (The general module is a white box located behind the glove box. The 54 pin plug is the center plug, and the 26 pin plug is the one on the left.)

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

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

Horn Trigger Wire (+): Purple/Blue
Horn Trigger Wire Location: Horn Relay (The horn relay is above the general module. It is the green relay to the right of an orange relay.)

Brake Wire (+): Brown/White
Brake Wire Location: Brake Pedal Switch

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