1999 Ford Expedition Alarm Wires
Find the right alarm wire colors, locations, and polarity with this 1999 Ford Expedition alarm wiring diagram. This will help you install your car alarm wiring correctly.
| Application | Wire Color and Location |
|---|---|
| Battery Constant Power 12v+ Wire (+) | Light Green/Purple |
| Battery Constant Power 12v+ Wire Location | At Ignition Switch Harness |
| Ignition Wire (+) | Blue/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 (+) | Black/Light Green |
| Second Accessory Wire Location | At Ignition Switch Harness |
| Starter Wire (+) | Red/Light Blue |
| Starter Wire Location | At Ignition Switch Harness |
| Second Starter Wire (+) | N/A |
| Second Starter Wire Location | N/A |
| Ground Wire | Chassis |
1999 Ford Expedition Alarm Sensor Wires
Find the right alarm sensor wire colors, locations, and polarity with this 1999 Ford Expedition 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 the Brake Pedal |
| Dome Light Supervision Wire | Black/Light Blue |
| Dome Light Supervision Wire Location | In the passenger kick panel. |
| Door Trigger Wire (+) | Light Blue/White |
| Door Trigger Wire Location | At Keyless Entry Module located high in the driver kick panel against the firewall. |
| 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 (-) | Pink/Yellow |
| Power Door Lock Wire Location | At Keyless Entry Module located high in the driver kick panel against the firewall. |
| Power Door Unlock Wire (-) | Pink/Light Green |
| Power Door Unlock Wire Location | At Keyless Entry Module located high in the driver kick panel against the firewall. |
| Tachometer Wire (-) | The tachometer 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 tachometer wire is a light green/white at the coil on the passenger side of the engine. |
| Tachometer Wire Location | Any 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 |
| Wait to Start Light Wire (-) | N/A |
| Wait to Start Light 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 1999 Ford Expedition 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 1999 Ford Expedition 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 1999 Ford Expedition.
8 thoughts on “1999 Ford Expedition Alarm Wiring Diagram”
Where is the hood pin switch in a 1999 Ford Expedition? I don’t measure any voltage coming from the blue/white wire (11th pin next to the black/pink wire in the Keyless Entry Module high in the driver’s kick panel) whether the hood is opened or closed. Anyone?
Joe, unfortunately, you can only program your 1999 Ford Expedition key at the Ford dealer. Take your new key to your local Ford dealer and have them program your key to your factory computer. Hope this helps. Good luck with programming your 1999 Ford Expedition key.
I lost my chip out of my one and only key i own for my 1999 Ford Expedition. I had one made with the chip in it how do i program it? Or how do i disconnect the factory anti theft system dont care about security as longs as i can drive my kids to the doctor if needed. thank you for your time
Mary, if your 1999 Ford Expedition does not crank then it could be that the key is not coded correctly or the alarm system is preventing you from starting the car. If your 1999 Ford Expedition cranks but the car does not stay running then it may be your vehicle computer or something mechanical. It would be hard to really pin point exactly what the problem is. Our advice is to take your car to an knowledgeable mechanic and have him troubleshoot it. Hope this helps. Good luck with your problem.
My comment is more of a question. My 99 expedition turns over but will not start. We towed it to a locksmith who said the key WAS coded and not our problem. Could the problem be the security system? and if so, do you know how to dis arm it? We have tried every wire in the whole harness and can’t figure it out. Please help if you can. Thanks, Mary.
Matt, ask and you shall receive: 1998 Ford Expedition Car Alarm Wiring Diagram
Im looking for a 1998 Ford expedition car alarm wiring diagram. If yall could get one and send it to me that would be great. Ive been working on my alarm off and on for about a month now.. Thanks MG
can somebody help me ? i’,m installing an alarm on a 1998 expedition, and the car starts with remote starter, theft light comes on and goes off like if it was started with the key, but after a few minutes theres a loud beeping noise coming from like under the car. anybody knows what this noise is?