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2005 GMC Sierra Car Security Wiring Diagram

2005 GMC Sierra Alarm Wires

Find the right alarm wire colors, locations, and polarity with this 2005 GMC Sierra alarm wiring diagram. This will help you install your car alarm wiring correctly.

Application Wire Color and Location
Battery Constant 12v+ Positive Wire (+) Red
Battery Constant 12v+ Positive Wire Location Ignition Switch Harness
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 (This wire must be connected as ignition #2 for remote starting.)
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

2005 GMC Sierra Alarm Sensor Wires

Find the right alarm sensor wire colors, locations, and polarity with this 2005 GMC Sierra alarm sensor wire chart. This will help you connect all your car alarm sensors correctly.

Application Wire Color and Location
Parking Light Negative Wire (-) Gray/Black
Parking Light Negative Wire Location At BCM, Brown Plug, Pin B2. The BCM (body control module) is located under the driver side of dash. The unit has (6) plugs on it with the purple plug on the back of the unit.
Parking Light Positive Wire (+) Brown
Parking Light Positive Wire Location In Drivers Kick Panel
Power Door Lock Negative Wire (-) This vehicle will requires a anti-theft bypass module to connect the door locks and bypass the Passlock 2 system. If not connecting up the door locks use a bypass module.
Power Door Lock Negative Wire Location N/A
Power Door Unlock Negative Wire (-) This vehicle will requires a anti-theft bypass module to connect the door locks and bypass the Passlock 2 system. If not connecting up the door locks use the bypass module.
Power Door Unlock Negative Wire Location N/A
Door Trigger Negative Wire (-) Gray/Black (Drivers) And Black/White (Passenger). Use Both. On the base model trucks the wires are in the light blue plug at the BCM, pins B4 and B5. On the 4 door trucks the drivers rear door is a light blue/black (-) pin A3 and the passengers rear door is a light green/black (-) pin A2 these wires are in the purple plug at the BCM.
Door Trigger Negative Wire Location At Each Door Module In Each Door
Dome Light Supervision Wire (-) Gray/Black
Dome Light Supervision Wire Location At BCM, Black Plug Pin F. The BCM (body control module) is located under the driver side of dash. The unit has (6) plugs on it with the purple plug on the back of the unit.
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 (-) Black/Yellow To Black
Horn Negative Wire Location At Steering Column Harness
Tachometer Wire Negative Wire (-) White
Tachometer Wire Negative Wire Location At PCM, Green Plug Pin 36. The PCM (powertrain control module) is located in the left front of the engine compartment to the left of the fan shroud. On diesels the tachometer wire is pin 55 in the black plug and on the hybrid models the tachometer wire is pin 35 in the green plug.
Wait To Start Wire (-) Dark Blue (When hooking up a remote starter, if you cannot get the (+) or (-) wait to start wire on the remote starter to work properly, you will then need to disconnect this wire and program the remote starter for the 5, 10, 15 or 20 second wait to start timer in the installation manual.)
Wait To Start Location At PCM. The PCM (powertrain control module) is located in the left front of the engine compartment to the left of the fan shroud.
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 Drivers Door
Factory Anti-Theft System Yellow (+), Black (-) And Red/White (Not Used)
Factory Anti-Theft System Location GM Passlock 2 System, These Wires Exit The Ignition Switch Tumbler Together And Are In The Main Ignition Switch Harness In The Column.

Feel free to use any 2005 GMC Sierra alarm wiring diagram that is listed here but keep in mind that all information here is provided as is without any warranty of any kind. Use of this 2005 GMC Sierra car alarm wire chart is at your own risk. Always verify all wires, wire colors and connection points before applying any information found here to your 2005 GMC Sierra.

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