Whether your an expert BMW 328i car alarm installer, BMW 328i performance fan or a novice BMW 328i enthusiast with a 1999 BMW 328i, a BMW 328i 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 BMW 328i.

The Modified Life staff has taken all its BMW 328i car alarm wiring diagrams, BMW 328i car security wiring diagrams, BMW 328i car alarm wire diagrams, BMW 328i car security wiring schematics, BMW 328i car security diagrams, BMW 328i 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 BMW 328i 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 BMW 328i.

Questions

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1999 BMW 328i Car Alarm Wiring Chart

Battery Constant 12v+ Positive Wire (+): Red/Green and Red/Blue
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness

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

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

Second Ignition Positive Wire (+): Purple
Second Ignition Positive Wire Location: Ignition Switch Harness

Parking Light Positive Wire (+): Remove the light switch module from the dash and remove the cover, a ribbon cable connects the switch to the module will be exposed. With the switch facing towards you interrupt the 4th wire from the left with a relay.
Parking Light Positive Wire Location: N/A

Power Door Lock Negative Wire (-): Blue/Red
Power Door Lock Negative Wire Location: At General Module (54-Pin Plug, Pin 22). The general module is a white box located behind the glove box. The 54-pin plug is the center plug.

Power Door Unlock Negative Wire (-): White/Black
Power Door Unlock Negative Wire Location: At General Module (54-Pin Plug Pin 20). The general module is a white box located behind the glove box. The 54-pin plug is the center plug.

Door Trigger Positive Wire (+): Red/Blue
Door Trigger Positive Wire Location: At General Module (54-Pin Plug, Pin 18). The general module is a white box located behind the glove box. The 54-pin plug is the center plug.

Domelight Supervision Wire: Comes On With Unlock
Domelight Supervision Wire Location: N/A

Trunk Release Positive Wire (+): Gray/Green
Trunk Release Positive Wire Location: At General Module (54-Pin Plug, Pin 17). The general module is a white box located behind the glove box. The 54-pin plug is the center plug.

Horn Negative Positive Wire (+): Purple/Blue
Horn Negative Positive Wire Location: The horn wire is located at the horn relay above the general module, it is a green relay.

Tachometer Wire Negative Wire (-): Black
Tachometer Wire Negative Wire Location: At Diagnostic Connector, Passenger Side Of Engine Compartment Or At Data Link Connector Under Drivers Dash

Brake Light Positive Wire (+): Brown/White
Brake Light Positive Wire Location: At Switch Above Brake Pedal

Factory Alarm Disarm Wire (-): Disarms With Unlock
Factory Alarm Disarm Wire Location: N/A

Anti Theft Type: Transponder anti-theft system, requires bypass module and extra ignition key.

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