Question about 2004 Ford Focus
I have one working key for my Focus. I have purchased a replacement PATS key but need a way to program it. Is there a way around the need to take it to a dealer to program the new key?
How do you program a new key for a 2004 ford focus
Posted on Jan 04, 2010
Hope this helps
Posted on Oct 20, 2008
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Posted on Jan 02, 2017
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Please keep in mind....
This and other how-to articles are provided for informational purposes only. Perform the procedures at your own risk. FordF150.net is not responsible for any damage that may occur as a result of performing procedures outlined in any article. Please be sure to read and understand the entire article before doing this.
These instructions will save you a lot of money. The dealer wants at least $50 just to do this simple procedure.....
To start off, I'll explain a bit about what a PATS key is, what it does, and why this might concern you.
PATS is an acronym that stands for Passive Anti-Theft System (Ford also calls this SecuriLock). It is also called a transponder key. It is a security feature found on most (if not all) new Ford products, and what it does is disable your vehicle's starter unless your specially programmed key is used to start the vehicle. There is a computer chip inside of the key, and without that you will NOT be able to start the vehicle -- even if you have a regular (non-PATS) key with the correct cuts, it will not work.
For convenience, I'm also including a list of other vehicles that these instructions apply:
Ford Contour '98-up
Ford Crown Victoria '97-up
Ford Escort 99-up
Ford Excursion '00-up
Ford Expedition '98-up
Ford Explorer '98-up
Ford Focus '00-up
Ford Mustang '96-up
Ford Ranger '98-up
Ford Taurus '96-up
Ford Windstar '98-up
Lincoln Continental '98-up
Lincoln LS '00-up
Lincoln Mark VIII '98-up
Lincoln Navigator '98-up
Lincoln Town Car '98-up
Mercury Grand Marquis '97-up
Mercury Mountaineer '98-up
Mercury Mystique '98-up
Mercury Sable '96-up
NOTE: These instructions may apply to more or less vehicles than those listed above. I cannot confirm that these procedures work for every year and model listed. See your dealer if to confirm this.
On-Board Programming Method "B"
for Ford keys (1996 -early 1998 Ford, Lincoln, Mercury)
If you want to initiate a new master key....
1. Insert new key into ignition cylinder and turn it to the ON (RUN) position. The security light on the dash will flash for fifteen minutes.
2. When the security light stops flashing, you have FIVE minutes to start the next step. Turn the ignition cylinder OFF and then back to the ON (RUN) position. The security light on the dash will flash for fifteen more minutes.
3. When the security light stops flashing, you have FIVE minutes to start the next step. Turn the ignition cylinder to OFF and then back ON (RUN) position. The dash will flash for fifteen more minutes.
4. After the security light stops flashing the third time, the new key has been programmed into the vehicles computer and will operate the car. It has replaced ALL the previous electronic key codes and is the ONLY key programmed into the vehicles computer.
If you want to add a key....
1. Insert an existing key into the ignition cylinder.
2. Turn the ignition cylinder to ON (RUN) and back to OFF.
3. Remove the existing key and, within 15 seconds, insert the new key and turn it to ON (RUN).
4. The security light will light up for two seconds to indicate success in programming the key into the vehicle.
5. Don't attempt to start the vehicle with any key for at least 1 minute.
Please rate this answer if it is helpful! Thanks, Mike
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