How do I disengage the anti-theft system on my 1990 Ford E150?

Question edited for clarity.
Question moved to model category.

You can't, you have to fix the problem, not try and find a way around it. The anti theft system is there to stop exactly what you are trying to do. You can't reprogram the computers, modules and sensors.

https://www.google.com/search?q=1990+Chrysler+Imperial.+Deactivate+the+anti+theft+system

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Didn't I answer this yesterday?

If what was stated in the manual didn't work, perhaps you have a further problem? Call out a mobile auto-electrician, or auto-locksmith with a pro grade scan tool computer to check the module, and keys.

https://www.manualslib.com/manual/575327/Ford-Econoline-E-150.html?page=63

https://www.google.com/search?q=1998+Ford+E150+Club+Wagon+reprogram+anti+theft

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Information in the link

https://www.google.com/search?q=1998+Ford+E150+Club+Wagon%2C+Location+of+anti+theft+module

This is my standard response to people that wish to remove anti-theft modules on high end saloons, but not quite sophisticated on an old ford van.

You can't remove it. The antitheft system is a module that integrates the key, the locks, the ignition switch and the ECM as well as other ingress sensors into the car. You have to fix it, not find a way around it. The system is there to stop exactly what you are trying to do. You need the Dealership or a good auto-electrician to fix the issue you have.

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Anti-Theft -Passive Anti-Theft System (PATS) The passive anti-theft system (PATS) contains the following components:

• theft indicator
• encoded ignition key
• transceiver module
• PATS control module (located behind the passenger side air bag module)
• powertrain control module (PCM)
• standard corporate protocol (SCP) communication network

The only thing you can do is have it towed to the dealer , there is nothing you can do .

anti-theft systems are unique, in order to adequately assist you with disengaging your particular system we/I will need your model number of the alarm or the exact veichel it is installed in and rather or not it is a factory system. On another note if there was an "arch" then it is more than possible that 1 or more components were damage, the only solution may be to remove power to the anti-theft system permanently. Some extra information that's unsolicited, you should refrain from working on a veichel you/someone else depends on if your aren't able to adequately take precautions to protect yourself, vehicle and others. Good luck and thanks.
Questions? Just ask! Mr.Mike

It is hard to give a definite answer because I don't know which and how many wires were damaged...Anti theft can be a real HEADACHE.....You can begin by disconnecting battery cables..Use your VIN number for parts,Get new ignition with a programmed factory key from dealer only.....They probably blew certain fuses and or relays when this happened...Or maybe not..Install new ignition connect battery cables..,turn switch on just to check for bad fuses and relays...Disconnect battery again...replace any fuses blown...Connect battery again...( Each time you disconnect battery it resets the computer system and should clear anti theft codes..)..make sure all doors are unlocked by using door remote key fob....Now see if vehicle will crank..If all is done correctly it should start...However I don't know how much damage was done.....It may possibly be too much work to totally disengage anti theft....You could start with removing all fuses and relays related to anti theft but disconnect battery before...I DO NOT RECOMMEND trying to disable the theft system.....You may create more headaches that you want.......Begin by trying what I described just to be safe...!!....

Try re-setting the computer...Disconnect the negative terminal of the battery and leave off for 5-10 minutes. This will allow the computer to reset. The charger may have interupted the signal or something.

I Have A Seville 1990, When That Happen To Me I Got The Inginion
Replaced Problem Solved. What Is Happening Is Your Key Has A Chip And That Chip Is A Resister And When The Valve Is Not Sented To The Computer It Disengages the Fuel Pump And Than Tells You To Wait. Soon All That Will Happen Is You Will Get The Wait 3 Mins And It Will Never Start, A Good Locksmith Can Take Care Of This For You And That Will Save You Some Money. Cause If You Go To The Dealer Ouch They Will Hit You Up. But I Asure This Is How It Will Happen Cause It Is How It Happen To Me
And Sorry There Is No By Passing The Computer