2002 Ford F-250 Diesel, 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=146726
Printed Date: May 01, 2025 at 12:17 PM
Topic: 2002 Ford F-250 Diesel, Remote Start Wiring
Posted By: gearhedz
Subject: 2002 Ford F-250 Diesel, Remote Start Wiring
Date Posted: February 12, 2021 at 11:17 AM
I need wiring information for a 2002 f250 diesel. I know the 2002 wiring was updated form the previous year. Data bus wait to start, vsm wiring, tach ect. And I know '03 was the last year possible for the 7.3 but they also started using the 6.0l in 2003. just wanted to make sure there were no differences from '02 and up.
Thanks for any assistance on this.
Replies:
Posted By: wirewise
Date Posted: February 12, 2021 at 11:24 AM
This is what I have.
F250-F350-F450 SUPER DUTY 2002-2005
KEY T-HARNESS IMMOBILIZER
FDKEY-1 N/A FORDS ANTI-THEFT SYSTEM, SEE NOTE #1
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT YELLOW (+) and LIGHT GREEN/PURPLE (+) @ IGNITION SWITCH HARNESS
STARTER DARK GREEN (+) @ IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 WHITE/YELLOW or RED/LIGHT GREEN (+) @ IGNITION SWITCH HARNESS
IGNITION 2 RED/BLACK (+) @ IGNITION SWITCH HARNESS
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 GRAY/YELLOW (+) @ IGNITION SWITCH HARNESS
ACCESSORY/HEATER BLOWER 2 DARK BLUE/LIGHT GREEN (+) @ IGNITION SWITCH HARNESS
KEYSENSE N/A
PARKING LIGHTS ( - ) N/A
PARKING LIGHTS ( + ) BROWN (+) @ HEADLIGHT SWITCH
POWER LOCK See NOTE #2
POWER UNLOCK See NOTE #2
LOCK MOTOR WIRE PINK/BLACK (5-WIRE TYPE) IN DRIVERS KICK PANEL
DOOR TRIGGER BLACK/LIGHT BLUE (+) IN EITHER KICK PANEL
DOMELIGHT SUPERVISION USE DOOR TRIGGER
TRUNK RELEASE N/A
SLIDING POWER DOOR N/A
HORN DARK BLUE (-) @ STEERING COLUMN HARNESS or VSM, See NOTE *2
TACH Any wire that is NOTE RED/LIGHT GREEN (AC), See NOTE #4 @ IGNITON COILS
WAIT TO START LIGHT See NOTE #5
BRAKE LIGHT GREEN (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM N/A
ANTI-THEFT FORDS ANTI-THEFT SYSTEM, SEE NOTE #1 @ IGNITION SWITCH TUMBLER
NOTES
NOTE #1: This vehicle MAY BE equipped with a Special Anti-theft key, to remote start you will need a Bypass module 791,(use this module IF you have a extra ignition key to place inside the 791 to remote start), if you do not have an extra key to use or wish not to have a key placed inside this bypass module, use a KEYLESS INTERFACE BYPASS MODULE that does not require a key to be placed inside the bypass module, this is Part # PKALL or PKFM, either one will work.
NOTE #2: Vehicles without FACTORY KEYLESS ENTRY are a TYPE "C" Door Locking system, the PINK/YELLOW is for LOCK and the PINK/LIGHT GREEN 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 (-) and the UNLOCK is a BLACK/WHITE (-) both wires are found at the VSM or in the DRIVERS DOOR HARNESS between the door and the door jam. You MAY also need to connect up the GEM WAKE UP DIAGRAM if when you use the REMOTE KEYLESS ENTRY and the door locks stop working after a 5 minute wait.
NOTE #3: The VSM (Vehicle Security Module) is located to the RIGHT of the GAS PEDAL, just above the transmission hump and below the RADIO, it is NOT ACCESSIBLE from the radio opening.
NOTE #4: The DIESEL TACH wire is a GREEN/WHITE wire, located in a 5-pin harness held up with tape behind the parking brake release.
NOTE #5: For WAIT TO START LIGHT, do not use the wire in the vehicle, use the 5,10,15 or 20 Second PROGRAMMABLE Wait To Start Timer on the Remote Starter
------------- ~wirewise~
Verify all wiring with your meter before making any connections!
Posted By: gearhedz
Date Posted: February 14, 2021 at 6:51 PM
Thanks for the info Wirewise. Much appreciated.
The VSM is flakey on this truck. I'm trying to integrate an Excalibur rs-475 to get the door locks working correctly or bypass the VSM all together, if that is possible. If anyone has done this please direct any info my way.
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