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2003 Ford F-350 Car Alarm Wire Chart

2003 Ford F-350 Alarm Wires

Find the right alarm wire colors, locations, and polarity with this 2003 Ford F-350 alarm wiring diagram. This will help you install your car alarm wiring correctly.

Application Wire Color and Location
Battery Constant Power 12v+ Wire (+) Yellow and Light Green/Purple
Battery Constant Power 12v+ Wire Location At Ignition Switch Harness
Ignition Wire (+) Red/Light Green
Ignition Wire Location At Ignition Switch Harness
Second Ignition Wire (+) Red/Black
Second Ignition Wire Location At Ignition Switch Harness
Accessory Wire (+) Gray/Yellow
Accessory Wire Location At Ignition Switch Harness
Second Accessory Wire (+) Dark Blue/Light Green
Second Accessory Wire Location At Ignition Switch Harness
Starter Wire (+) Dark Green
Starter Wire Location At Ignition Switch Harness
Second Starter Wire (+) N/A
Second Starter Wire Location N/A
Ground Wire Chassis

2003 Ford F-350 Alarm Sensor Wires

Find the right alarm sensor wire colors, locations, and polarity with this 2003 Ford F-350 alarm sensor wire chart. This will help you connect all your car alarm sensors correctly.

Application Wire Color and Location
Brake Light Wire (+) Light Green
Brake Light Wire Location At Switch Above Brake Pedal
Dome Light Supervision Wire Use Door Trigger
Dome Light Supervision Wire Location N/A
Door Trigger Wire (+) Black/Light Blue
Door Trigger Wire Location In Driver Kick Panel
Hood Pin Switch Wire (-) N/A
Hood Pin Switch Wire Location N/A
Horn Wire (-) Dark Blue
Horn Wire Location At the steering column wire harness.
Key Sense Wire (+) N/A
Key Sense Wire Location N/A
Parking Light Wire (+) Brown
Parking Light Wire Location At Headlight Switch
Power Door Lock Wire (-) Vehicles without factory keyless entry are a type “C” door locking system. The pink/yellow wire is for lock and the pink/light green wire is for unlock. Both wires are found in either kick panel. You must use the drivers door switch for testing. If vehicle is equipped with factory keyless entry the door locks are a type “B” system. The lock is a white/red wire (-) and the unlock is a black/white wire (-). Both wires are found at the VSM or in the drivers door harness between the door and the door jam.
Power Door Lock Wire Location N/A
Power Door Unlock Wire (-) Vehicles without factory keyless entry are a type “C” door locking system. The pink/yellow wire is for lock and the pink/light green wire is for unlock. Both wires are found in either kick panel. You must use the drivers door switch for testing. If vehicle is equipped with factory keyless entry the door locks are a type “B” system. The lock is a white/red wire (-) and the unlock is a black/white wire (-). Both wires are found at the VSM or in the drivers door harness between the door and the door jam.
Power Door Unlock Wire Location N/A
Tachometer Wire (-) Any Wire that is NOT Red/Light Green
Tachometer Wire Location At Ignition Coil.
Trunk Pin Switch Wire (-) N/A
Trunk Pin Switch Wire Location N/A
Trunk Release Wire (-) N/A
Trunk Release Wire Location N/A
Factory Alarm Arm Wire (-) N/A
Factory Alarm Arm Wire Location N/A
Factory Alarm Disarm Wire (-) N/A
Factory Alarm Disarm Wire Location N/A
Factory Anti-Theft System Ford Transponder Anti-Theft System
Factory Anti-Theft System Location Transponder at Ignition Switch Tumbler
Factory Immobilizer Bypass Requires Immobilizer Bypass Module

Feel free to use any 2003 Ford F-350 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 2003 Ford F-350 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 2003 Ford F-350.

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