Car Alarm and Remote Car Starter Wiring Diagram – 2003 Mitsubishi Galant

Whether your an expert installer or a novice enthusiast with a 2003 Mitsubishi Galant, 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 2003 Mitsubishi Galant.

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 2003 Mitsubishi Galant.

2003 Mitsubishi Galant Car Alarm and Remote Car Starter Wiring Information

Constant 12V+ Wire: Blue/Yellow
Constant 12V+ Wire Location: Ignition Switch Harness

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

Ignition Wire (+): Black/White
Ignition Wire Location: Ignition Switch Harness

2nd Ignition Wire: N/A
2nd Ignition Wire Location: N/A

Accessory Wire: Blue/Red
Accessory Wire Location: Ignition Switch Harness

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

Door Lock Wire (-): Purple
Door Lock Wire Location: Driver Kick Panel

Door Unlock Wire (-): Light Green/Red
Door Unlock Wire Location: Driver Kick Panel

Door Trigger Wire (-): Green/Orange
Door Trigger Wire Location: Top Front of Fuse Box

Dome Supervision Wire: N/A
Dome Supervision Wire Location: N/A

Tachometer Wire: White
Tachometer Wire Location: Instrument Cluster

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

Parking Light Positive Wire (+): Green/White
Parking Light Positive Wire Location: Fuse Box

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

Trunk/Hatch Pin Wire (-): White
Trunk/Hatch Pin Wire Location: Use Light in the Trunk

Hood Pin Wire (-): Blue/Black
Hood Pin Wire Location: Fuse Box under the Dash

Trunk/Hatch Release Wire (+): N/A
Trunk/Hatch Release Wire Location: N/A

Factory Alarm Arm Wire: N/A
Factory Alarm Arm Wire Location: N/A

Factory Alarm Disarm Wire (-): Red
Factory Alarm Disarm Wire Location: Driver Door Harness

Horn Trigger Wire (-): Green/White
Horn Trigger Wire Location: Use horn relay in engine compartment relay box, or also found right at horn behind left side of front bumper.

Brake Wire (+): Green
Brake Wire Location: Brake Pedal Switch

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2 thoughts on “Car Alarm and Remote Car Starter Wiring Diagram – 2003 Mitsubishi Galant”

  1. Paul, it sounds like your alarm shock sensor is too sensitive. You need to lower the shocks sensor sensitivity to prevent you alarm from going off when cars drive by. Some alarm systems have external shock sensors which can be adjusted externally. Some alarm systems have built in shock sensors which can only be adjusted via alarm programming. If you have never adjusted or programmed your alarm system before, our advice is that you take your car to an experienced alarm installer. It should not take more than 30 minutes from start to finish to adjust it. Hope this helps. Good luck with your shock sensor adjustment.

  2. 2003 Mitsubishi Galant, GTZ, alarms for no reason day, night, parked and locked, why? Also where is the master fuse to disable the alarm system without effecting other systems. Thank you, Paul

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