2008 Ford Focus Alarm/Remote Start Wiring
Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=114523
Printed Date: November 26, 2025 at 5:24 AM
Topic: 2008 Ford Focus Alarm/Remote Start Wiring
Posted By: sk8manpro3574
Subject: 2008 Ford Focus Alarm/Remote Start Wiring
Date Posted: June 17, 2009 at 7:04 PM
Wiring diagram for a 2008 ford focus 2dr se. for remote start/alarm
-------------
Shawn
Replies:
Posted By: mikvot
Date Posted: June 17, 2009 at 9:07 PM
| Wire/Function | Colour | Location/Description | Polarity | | PASSIVE ANTI-THEFT | YES | TRANSPONDER | SEE NOTES | | 12 VOLTS | Blue/red | Ignition switch harness | + | | IGNITION | BROWN / yellow | Ignition switch harness | + | | ACCESSORY | Violet/green | Ignition switch harness | + | | STARTER | Blue/white | Ignition switch harness | + | | KEY SENSE | Blue/gray | Ignition switch harness | + | | TACH SIGNAL | Yellow/orange | At PCM near battery | AC | | LOCK | Yellow/gray | In harness in driver kick panel | - | | | | May also be Light Blue/Light Green (-) in driver's kick panel. |
| | UNLOCK | Violet/brown | In harness in driver kick panel | - | | | | May also be Yellow/Violet (-) in driver's kick panel. |
| | DISARM | Violet/brown | In harness in driver kick panel | - | | DRIVER LOCK MOTOR | Blue/green | In harness in driver kick panel | REV POL | | DRIVER UNLOCK MOTOR | Gray/brown | In harness in driver kick panel | REV POL | | DOMELIGHT / ALL DOORS | Gray/violet | In harness in driver kick panel | + | | HOODPIN | Blue/orange | At smart junction box under driver dash | - | | TRUNK PIN | YELLOW /GREEN | In harness in driver kick panel | - | | TRUNK RELEASE | Light Blue | Driver's kick panel | + | | | | Can use OEM remote to test. |
| | BRAKE SWITCH | Violet/white | At switch above brake pedal | + | | PARKING LIGHTS | Violet/white | At harness in driver's kick panel | + | | HORN | Blue/white | Steering column harness | - |
Available Notes | PLEASE NOTE: This vehicle is equipped with an IMMOBILIZER passive anti-theft system. Please refer to the ALARM diagram before any remote start installation. | | Parking lights- Violet/white @ BCM above DKP. This wire should be used to avoid damage to the light switch.
Trunk release- Brown next to lock wires. This wire will not test.
|
-------------
|