Is there a way to disarm the anti-theft system?

What is the actual problem? Security light flashing?
The system is spread out among multiple parts so it cannot be disconnected, it would not be very effective if you just removed a box and it was gone. Instead it uses the key, the lock cylinder the dash and the ECM to make it work. If one of those items fails or is changed the system loses the coding for the keys and the vehicle will not start.
You can try doing a system reset:
https://www.2carpros.com/articles/how-to-reset-a-security-system

If that does not work then more diagnostics will be needed.
The dealer scan tool can pull the codes from the PATS system and tell where the problem is but you need to get it to the dealer for that option.

Use the key to lock and unlock the drivers door should deactivate the alarm.

Here is a guide that will help you.

https://www.2carpros.com/articles/how-to-reset-a-security-system

I have also seen where the drivers side door latch micro switch for the security system goes out and will no allow the security system to be reset.

Here is a guide to help you test the connection.

https://www.2carpros.com/articles/how-to-check-wiring

I will include the security system wiring diagrams (below)

Here is what the book says:

With key in and or cranking do you have a security / theft light on or blinking ?

If not then its not an alarm issue.

Here is a guide on howto reprogram the system

Central Security Module (CSM) enable/disable mode allows autolock feature to be turned on or off. To enter enable/disable mode, close all doors. Ensure ignition switch is in LOCK position. Perform the following steps within 30 seconds:

Turn ignition switch from LOCK to RUN position.
Press power door lock switch UNLOCK button 3 times.
Turn ignition switch from RUN to OFF position.
Press power door lock switch UNLOCK button 3 times.
Turn ignition switch from LOCK to RUN position.

CSM module should chirp horn indicating CSM module is in enable/disable mode and ready to accept program changes.

Press power door lock switch UNLOCK button once to command CSM module to toggle autolock feature on or off. Press power door lock switch LOCK button once to enable/disable autolock feature. CSM module will chirp one time to indicate autolock has been disabled.

CSM module will chirp once, followed by a longer chirp to indicate autolock feature has been enabled. Press power door lock switch UNLOCK button once, then turn ignition switch to OFF position to exit enable/disable mode. CSM module should chirp once to verify a feature change.

REMOTE TRANSMITTER

Cycle ignition key 8 times within 10 seconds and end in RUN position to enter program mode. Doors should lock and unlock to confirm program mode has been entered. Press any button on Remote Keyless Entry (RKE) transmitter(s). Doors will lock, then unlock to confirm programming. If door locks do not respond, press button again (3 times maximum) with same RKE transmitter.

Repeat procedure for additional RKE transmitters (4 maximum). If equipped with memory seats, ensure RKE transmitter(s) are programmed according to numbers on back of RKE transmitter(s). Turn ignition switch to LOCK or wait 5 minutes for system to exit program mode. All doors should lock, then unlock to confirm exit of programming mode. Check system operation.

Check out the diagrams (Below)

Please let us know what you find. We are interested to see what it is.

Cheers, Ken

Try to reprogram the transmitter

REMOTE TRANSMITTER
Cycle ignition key 8 times within 10 seconds and end in RUN position to enter program mode. Doors should lock and unlock to confirm program mode has been entered. Press any button on Remote Keyless Entry (RKE) transmitter(s). Doors will lock, then unlock to confirm programming. If door locks do not respond, press button again (3 times maximum) with same RKE transmitter. If door locks still do not respond, go to SYSTEM TESTS. Repeat procedure for additional RKE transmitters (4 maximum). If equipped with memory seats, ensure RKE transmitter(s) are programmed according to numbers on back of RKE transmitter(s). Turn ignition switch to LOCK or wait 5 minutes for system to exit program mode. All doors should lock, then unlock to confirm exit of programming mode. Check system operation.

If there is a problem with the anti theft system, I recommend you take a look at this guide.

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.

Hello, I'm Danny.

Here is an anti-theft/security system tutorial for you to view:

https://www.2carpros.com/articles/how-to-reset-a-security-system

Scroll the page to find Ford.Let me know if this works.Hope this helps and thanks for using 2CarPros.

Danny-

It could be anything from a bad chip in the key to a sensor in the steering column. I hate to say this, but the only place that will have the proper test equipment to diagnose the problem is a dealer.

As far as the letting it sit for 10 minutes with the key in the run position, that is a means of bypassing the system.

Let me know if you have other questions.
Joe

Yes, it runs continuously. Pressure is regulated by the regulator. However, if you bypass the PAT system, the fuel pump will not shut down in the event of an accident.

You will need a dealer to use their factory IDS scanner and access the PATS section this is a ford dealer only access to change the in and out code if required and to see if the keys are compatible.

Hello,

It sounds like the security module is going out not holding the program. Here is a wiring diagrams you can see how the system works. (Below)

Here is information the book has to say.

Note: The Passive Anti-Theft System (PATS) module must be reconfigured upon replacement of the instrument cluster. Refer to the diagnostic tool help screen on the configuration card to program.

Connect the diagnostic tool to the Data Link Connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the vtool menu. If the diagnostic tool does not communicate with the vehicle:
check that the program card is properly installed.
Check the connections to the vehicle.
Check the ignition switch position.

If scan tool still does not communicate with the vehicle, refer to the scan tool manual.
Carry out the DATA LINK DIAGNOSTICS TEST. If diagnostic tool responds with:
CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network (Information Bus).

NO RESP/NOT EQUIP for instrument cluster module, go to Pinpoint Test A. See: Pinpoint TestsTest A: No Communication With Instrument Cluster Module
SYSTEM PASSED, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the instrument cluster module.

If the DTCs retrieved are related to the concern, go to Instrument Cluster Diagnostic Trouble Code (DTC) Index to continue diagnostics. See: Diagnostic Trouble Code Tests and Associated Procedures

If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics. See: Symptom Related Diagnostic Procedures

Check out the diagrams (below).

Please let us know what happens.

Cheers, Ken

If the security light is flashing, chances are there is a problem with the factory security system. The bad part about that is the only place that will have the proper test equipment is a dealer.