Ford f150 anti theft won t start

Your F-150 is equipped with an anti-theft system that disables the ignition and fuel injectors if someone tries to start the car without using your key. When this happens, you may be left wondering why your car won’t start when the key is in the ignition. So, why will my ford f150 anti theft won t start?

The Ford F150 anti-theft system is designed to help prevent your vehicle from being stolen. When you turn on the engine and the vehicle does not start, it may be because of the anti-theft system.


There can be a few reasons why your Ford F150 won’t start, but the most common problem has to do with the anti-theft system. Here’s how you can work around it:

  1. Try inserting and removing the key from the ignition switch five times within 10 seconds.
  2. Turn the key to the “on” position and wait 15 minutes; this will allow any computer codes or whatever to reset themselves.
  3. Once the 15 minutes is up, turn the key back off and then start the vehicle; this should allow it to start normally.

ford f150 anti theft won t start

Importance of ford f150 anti theft

Your Ford F150 is probably your most valuable possession. It’s important to keep it safe from thieves, and you can do that by getting a Ford F150 anti-theft system. These systems use the latest technology to keep your car as safe as possible.

The first benefit that we want to discuss is how effective it can be for deterring thieves from stealing your vehicle. A large majority of car thefts happen because someone leaves their keys in the ignition or doesn’t lock their doors properly before going into a store or other public place.

By having an anti-theft device installed on your pickup truck, you are making it much more difficult for thieves to take advantage of these types of opportunities.

Another benefit is that it will help protect your truck from being stolen while parked outside overnight or at work when you’re not around to watch over it all day long. This helps keep you safe while also allowing us as consumers peace of mind knowing that our vehicle isn’t going anywhere without our knowledge.

Passive disabling device

A passive disabling device is a mechanism that was designed to be effective at discouraging theft by making it difficult or impossible to use a stolen vehicle. It can include steering locks, brake locks, and ignition switches.

Steering locks are clamps that attach to your steering wheel, preventing it from being turned. If the thief doesn’t have the key, they will be unable to move the car.

Brake locks work in a similar fashion, but they prevent the brakes from being used instead. The car cannot be driven away.

Ignition switches are put into place by attaching them to your current ignition switch, so you can’t start your car without first removing the lock with the key.

How to bypass ford pats system without key?

The Ford PATS system is used to immobilize your vehicle if you’re using a key that’s been reported stolen or missing. If you need to get into your car but don’t have your key (or it’s been reported stolen), there are several ways around this system.

First method

The first method involves connecting a jumper wire between the battery terminals and then turning the ignition key back and forth until the PATS system resets itself.

Second method

Another option is to use a device called a “power loop,” which plugs into your OBD port and allows you to bypass the PATS system entirely.

If these methods don’t work, you’ll need to get an override code from your dealer.

How to disable anti-theft system without a key?

So, you’ve lost the keys to your car, and you have no way of entering it. What do you do? Well, one option is to call a locksmith, but that could get expensive. Another option is to disable the anti-theft system so you can enter the vehicle manually.

Here’s how to do it:

First, find the fuse box in your car. It should be located close to each tire and contain a box with a red translucent cover.

Once you’ve located the fuse box, open it. Inside should be several fuses. All of them will be labeled for what they control and will also have an amperage rating.

Find the fuse labeled “anti-theft” and remove it. If your car does not label its fuses, try removing fuses labeled as “security” or “alarm” instead, as these generally control the same systems as an anti-theft system.

After removing this fuse, wait ten seconds and then insert the fuse back into its slot in the fuse box. This should reset the anti-theft system and allow you to access your car without any further problems.

How to reset ford door code?

There are two ways to reset the door code on your Ford. The first way is to use the keypad on the driver’s side door. Press and hold the “Lock” button until all four buttons light up, then enter your four-digit code. If you don’t remember that code, you can also go to a Ford dealer and have them reset it for you.

In order to reset a Ford door code, you will need to complete the following steps:

  1. Place the keys in the ignition and turn it completely to the right (clockwise) until the steering wheel locks.
  2. Turn off all interior lights, including dome lights and courtesy lights.
  3. Remove the key from the ignition.
  4. Wait 10 seconds.
  5. Turn the ignition back on, then turn it right (counter-clockwise) until the steering wheel unlocks; then turn it off again.

How to disable ford pats system?

The PATS system is a security system that prevents unauthorized access to your car. First, you’ll need to locate the Ford PATS system. It’s usually located in the trunk of your vehicle. Once you know where it is, you can follow these steps:

  1. Unplug the PATS system from its power source.
  2. Disconnect all wires going into the PATS system.
  3. Remove the fuse for the PATS system and put it in a safe place so that you can re-apply for it later.
  4. Get into your car and start it up, and if everything is done correctly, it should start right up.

How do I get my car out of anti-theft mode without a remote?

If you’re having trouble getting your car into anti-theft mode, there are a few steps you can try to remedy the situation.

First, remove any additional devices that may be connected to your car’s computer system. This includes things like smart keys, satnavs, and DVD players – anything that connects wirelessly or plugs into the cigarette lighter should be removed.

Next, turn on the ignition and leave it running for at least five minutes. This will charge up your battery, which may have been depleted by the previous steps.

Now, turn off your engine and wait 30 seconds before turning it back on again. If everything goes well, this should reset the computer system and get things working again.

How to turn off car alarm without key?

You can turn off your car alarm without the key by doing the following steps:

  1. Open the door and make sure that the alarm is going off. If it is, then you need to start with step 2.
  2. Turn off your car by turning the ignition key to position 4 or 5 (depending on your car).
  3. Wait for 10 seconds, then turn your ignition back on again. You should now have access to your dashboard and be able to turn off the alarm from there.

Causes of ford f150 anti-theft wont start?

If you have a Ford F150 that won’t start, there are a few things that could be going wrong.

Dead battery

The most common cause of the anti-theft system not working is a dead or disconnected battery. If you have recently had a dead battery or removed your battery for some reason, it can cause an issue with the electronic security system. Check your battery and make sure it is connected properly.

Bad starter relay

Another common issue is a bad starter relay. If you have replaced your starter but still cannot get your vehicle to start, you may need to replace the starter relay. The starter relay sends power from the ignition switch to the starter solenoid so that it can engage and turn over the engine.

If you have recently replaced your battery or starter and still cannot get your vehicle to start, check for any flashing lights on your dash panel or door locks not working properly.

These could be signs that your anti-theft system has been triggered due to improper installation of parts or tampering with sensitive components in order to bypass the security system.

How long does it take to reset the anti theft system?

The anti-theft system in your car is designed to protect you from having your car stolen. It can take up to 2 hours for the system to reset after a new key or fob is introduced. If your vehicle doesn’t start, you should try using a different key or fob and then wait at least 30 minutes before trying again.

How do you reset the PCM on a Ford F-150?

To reset the PCM on a Ford F-150, you will need to follow the steps outlined below:

  1. Turn off your truck and remove the key from the ignition.
  2. Disconnect the battery from the system by lifting up the lever located on each terminal.
  3. Press down on each terminal to disconnect it from the battery.
  4. Wait for fifteen minutes before reconnecting the terminals to the battery by pressing them down onto their respective connections.
  5. Replace all covers over your battery and terminals, if applicable.

How do I reset my ECU?

To reset your ECU, you must first shut off your car and remove the key from the ignition. Then, wait for at least 10 seconds before turning it on again. Once it starts up, press the “reset” button on the dash and hold it for at least 5 seconds. Then turn off your car again and wait for at least 10 seconds before turning it back on.


If you have got a ford f150 anti theft won t start, there are many possible reasons for that. The best thing you need to do is to get the car to your mechanic to run the necessary inspection on your car. Several reasons have been discussed on this page with what you can do with the situation.