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2005 Buick Terraza Car Alarm Wiring Diagram


Whether your an expert Buick Terraza car alarm installer, Buick Terraza performance fan or a novice Buick Terraza enthusiast with a 2005 Buick Terraza, a 2005 Buick Terraza 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 Terraza headlight bulb size you need for your low beam or high beam and save time. Also, find your other car light bulb sizes including your fog light, reverse light, turn signal, brake light and more. It’s that easy!

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

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2005 Buick Terraza Car Alarm Wiring Instructions

Battery Constant 12v+ Positive Wire (+): Red or Red/Black
Battery Constant 12v+ Positive Wire Location: At Battery Or Fuse Box

Starter Positive Wire (+): Yellow
Starter Positive Wire Location: Ignition Switch Harness or Pin #21 in C1 Connector At BCM Module. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

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

Ignition Positive Wire (+): Pink
Ignition Positive Wire Location: Ignition Switch Harness or Pin #22 in C1 Connector At BCM Module. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

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

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

Accessory Positive Wire (+): Brown
Accessory Positive Wire Location: Ignition Switch Harness or Pin #23 in C1 Connector At BCM Module. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

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: Pin #8 in C3 Connector At BCM Module. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

Parking Light Positive Wire (+): Brown
Parking Light Positive Wire Location: At Fuse Box Or Passenger Kick Panel, Harness To Rear Of Vehicle.

Power Door Lock Negative Wire (-): Orange/Black
Power Door Lock Negative Wire Location: Pin #2 in C2 Connector At BCM Module. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

Power Door Unlock Negative Wire (-): Orange/Black
Power Door Unlock Negative Wire Location: Pin #11 in C2 Connector At BCM Module. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

Door Trigger Negative Wire (-): The driver door is a gray/black (-) pin 26 and the passengers door is a tan/white (-) pin 17, the drivers rear door is a light blue/black (-) pin 7 and the passenger rear door is a light green/black (-) pin 5. When connecting to an alarm system, use all 4 wires and diode isolate.
Door Trigger Negative Wire Location: In C2 Connector At BCM Module. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

Dome Light Supervision Wire (+): Gray/Black
Dome Light Supervision Wire Location: Pin #43 in C1 Connector At BCM Module. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

Trunk Release Negative Wire (-): N/A
Trunk Release Negative Wire Location: N/A

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

Horn Negative Wire (-): Tan
Horn Negative Wire Location: At BCM, C1 Pin 4. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

Tachometer Wire Negative Wire (-): Any Wire Not Pink
Tachometer Wire Negative Wire Location: At Any Fuel-Injector

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

Brake Light Positive Wire (+): White
Brake Light Positive Wire Location: Pin #30 in C2 Connector At BCM Module. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

Factory Alarm Disarm Wire (-): Purple
Factory Alarm Disarm Wire Location: Pin #24 in C2 Connector At BCM Module. The BCM is to the left of the steering column, C1 is a 52-pin black plug, C2 is a 52-pin black plug and C3 is a 18-pin black plug.

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 Terraza alarm wire color information above is updated as it is submitted by the Modified Life community.

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