Q: Resetting the PATS (Passive Anti Theft System)

asked by on

How do I reset the Passive Anti Theft System on a 2000 Ford Mustang ?
My car has an automatic transmission.

The passive anti-thief system (PATS) is programmed to work with your keys from the factory. Only a dealer with special programming tools and codes can reprogram the system to your key again. If you have one key that is programmed and works then you can have copies made and program them yourself by inserting the key that works and turn on the ignition then turn off the ignition and pull out the key and immediately put in a new key and turn on the ignition. This will program the new key to start and work in your vehicle.

If you do not have a key that works in your car or the PATS does not respond to the key then only a dealer can access the PATS and test or reprogram it. There is a possibility the PATS module code was wiped clean from a battery that was disconnected or a voltage surge happened from jump starting the vehicle. Have the PATS checked and diagnosed by a dealer only to isolate the failures.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Resetting the PATS (Passive Anti Theft System)

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Ecu not grounding ac circuit or fans for ac to work.

Everything in the A/C system and heater is controlled by the A/C heat control panel module. If fuse 17 on the inside fuse panel and fuse 47 in the outside engine compartment fuse box are both good and the ECU...

Q: Won't start with the key, but I can lock and unlock the doors.

Hi there. The key fob could have a battery that is going dead. I recommend replacing the battery as the battery only lasts about 8 years. Then you will need to reprogram the key fob to the vehicle by putting...

Q: Cooling fan kicks off when the AC is on, on a 2000 Cherokee XJ

No, it is not normal. They shouldn't cycle that fast. When the fan is on, the fans generally run as long as the compressor is running. So, if you live in an area where it's really hot like Arizona, you...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...