Whether your an expert Ford Expedition car alarm installer, Ford Expedition performance fan or a novice Ford Expedition enthusiast with a 1999 Ford Expedition, a Ford Expedition 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 1999 Ford Expedition.

The Modified Life staff has taken all its 1999 Ford Expedition car alarm wiring diagrams, 1999 Ford Expedition car security wiring diagrams, 1999 Ford Expedition car alarm wire diagrams, 1999 Ford Expedition car security wiring schematics, 1999 Ford Expedition car security diagrams, Ford Expedition 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 1999 Ford Expedition 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 1999 Ford Expedition.

Questions

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1999 Ford Expedition Car Security Wiring Schematic

Battery Constant 12v+ Positive Wire (+): Yellow and Light Green/Purple
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness

Starter Positive Wire (+): Red/Light Blue
Starter Positive Wire Location: Ignition Switch Harness

Ignition Positive Wire (+): Blue/Light Green
Ignition Positive Wire Location: Ignition Switch Harness

Second Ignition Positive Wire (+): Red/Black
Second Ignition Positive Wire Location: Ignition Switch Harness

Accessory Positive Wire (+): Grey/Yellow
Accessory Positive Wire Location: Ignition Switch Harness

Second Accessory Positive Wire (+): Black/Light Green
Second Accessory Positive Wire Location: Ignition Switch Harness

Parking Light Positive Wire (+): Brown
Parking Light Positive Wire Location: At Headlight Switch

Power Door Lock Negative Wire (-): Pink/Yellow
Power Door Lock Negative Wire Location: At Keyless Entry Module. The keyless entry module is located high in the drivers kick panel against the firewall.

Power Door Unlock Negative Wire (-): Pink/Light Green
Power Door Unlock Negative Wire Location: At Keyless Entry Module. The keyless entry module is located high in the drivers kick panel against the firewall.

Door Trigger Negative Wire (-): Light Blue/White (The light blue/white wire is in pin-11, next to the black/pink wire. Test this wire with a digital multi-meter only, as to not damage the circuit.)
Door Trigger Negative Wire Location: At Keyless Entry Module. The keyless entry module is located high in the drivers kick panel against the firewall.

Domelight Supervision Wire (+): Black/Light Blue (Requires Relay)
Domelight Supervision Wire Location: In Passenger Kick Panel

Horn Negative Wire (-): Dark Blue
Horn Negative Wire Location: At Steering Column Harness

Tachometer Wire Negative Wire (-): The tach wire on the 4.6L engine is a pink/white in a 3-pin plug at the front of the engine below the air intake. On the 5.4L engine the tach wire is a light green/white at the coil on the passenger side of the engine.
Tachometer Wire Negative Wire Location: At the firewall on the drivers side you will find (3) wire harnesses, the tach wire will be located in the upper wire harness.

Brake Light Positive Wire (+): Light Green
Brake Light Positive Wire Location: At Switch Above Brake Pedal

Factory Alarm Disarm Wire (-): N/A
Factory Alarm Disarm Wire Location: N/A

Factory Anti-Theft System: Ford’s Pats Anti-Theft Transponder System
Factory Anti-Theft System Location: Transponder At Ignition Switch Tumbler

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