Whether your an expert Buick LeSabre car alarm installer, Buick LeSabre performance fan or a novice Buick LeSabre enthusiast with a 2005 Buick LeSabre, a 2005 Buick LeSabre 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 2005 Buick LeSabre.

The Modified Life staff has taken all its Buick LeSabre car alarm wiring diagrams, Buick LeSabre car security wiring diagrams, Buick LeSabre car alarm wire diagrams, Buick LeSabre car security wiring schematics, Buick LeSabre car security diagrams, Buick LeSabre 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 Buick LeSabre 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 2005 Buick LeSabre.

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2005 Buick LeSabre Car Alarm Wiring Diagram

Battery Constant 12v+ Positive Wire (+): Connect To Battery Only
Battery Constant 12v+ Positive Wire Location: Under The Hood

Starter Positive Wire (+): Yellow
Starter Positive Wire Location: Ignition Switch Harness

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

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

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

Third Ignition Positive Wire (+): N/A
Third Ignition Positive Wire Location: N/A

Accessory Positive Wire (+): Orange
Accessory Positive Wire Location: Ignition Switch Harness

Second Accessory Positive Wire (+): N/A
Second Accessory Positive Wire Location: N/A

Key Sense Wire: N/A
Key Sense Wire Location: N/A

Parking Light Negative Wire (-): Brown/White
Parking Light Negative Wire Location: At DIM Module, Brown Plug, Pin 3. The parking lights on this vehicle are a 2-wire system that will require 2 extra relays.

Parking Light Positive Wire (+): Purple And Brown/White (Use Both Wires). The parking lights on this vehicle are a 2-wire system that will require 2 extra relays.
Parking Light Positive Wire Location: At Rear Fuse Block Under Drivers Side Rear Seat.

Power Door Lock Negative Wire (-): Red/Black
Power Door Lock Negative Wire Location: At Drivers Door Lock Switch In Drivers Door

Power Door Unlock Negative Wire (-): Orange/Black
Power Door Unlock Negative Wire Location: At Drivers Door Lock Switch In Drivers Door

Door Trigger Negative Wire (-): Tan And Dark Blue (Use Both Wires). The tan (-) is for the driver door located in the driver door harness. The dark blue (-) is for all other doors and is located low in the drivers kick panel.
Door Trigger Negative Wire Location: In Each Door Module. The DIM Module is located just in front of the blower motor near the passenger kick panel. The DIM Module has (3) connectors that all exit out the bottom of the module.

Dome Light Supervision Wire (-): Gray (Requires Relay)
Dome Light Supervision Wire Location: At Under Dash Light

Trunk Release Negative Wire (-): Light Blue
Trunk Release Negative Wire Location: At Rim Module, Blue Plug, Pin B4. The RIM module is located behind the rear seat in the upper corner on the driver side.

Sliding Power Door Wire: N/A
Sliding Power Door Wire Location: N/A

Horn Negative Wire (-): Black
Horn Negative Wire Location: At DIM Module, Grey Plug, Pin A6. The parking lights on this vehicle are a 2-wire system that will require 2 extra relays

Tachometer Wire Negative Wire (-): White
Tachometer Wire Negative Wire Location: At PCM. The PCM Module is located under the hood inside the air cleaner box, the tach wire is in the clear plug pin 8.

Wait To Start Wire: N/A
Wait To Start Location: N/A

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: In Drivers Door Module In Door

Factory Anti-Theft System: GM Passkey 3 (Pk3 On Steel Shaft Of Ignition Key) Transponder System
Factory Anti-Theft System Location: Transponder At Ignition Switch Tumbler

The 2005 Buick LeSabre alarm wire color information above is updated as it is submitted by the Modified Life community.

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