My ford f250 (460 automatic) will only start when I disconnect the (battery and reconnect) and then will only start once. Is this security?(had steering column apart)

Ok if you have a key fob remote disconnect the battery cables and wait 3-5minutes then reconnect them when the alarm sounds stop it with your remote if you have a combo/remote key and this doesn't work the battery in the key is dead replace it and try again doing the cables

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

O.K. Jeanne lets start here did you disconnect the battery or did it go dead yes/no if yes when cables were reconnected ///or battery jumped the alarm went off putting the car into theft mode and that's why the no start condition flashing red alarm light=== you have to disconnect the battery again and when you reconnect it the alarm will sound when it does you have to press the remote control button///key fob to stop the alarm and you will be able to start the car please post back if there's something else and please the most important thing to remember is that any one here who wants to help you is not standing there with you so everything must be told be very specific about what's happened ///happening O.K.

I had a 1995 F150 with a recall bulletin for an electrical problem in the doors. Took the truck to Midway Ford, they worked on the truck, parked it up on the hill East of the shop. When I got there the truck started, the alarm triggered and when they checked out their work, they had failed to re-connect a wire inside the drivers door. Have you had wiring connections opened recently? You might want to recheck the connections if you have. That was the only time the truck did anything like that and after they reconnected the wire I had no more electrical problems with it.

you appear to have blown some fuses, you never play with electronics like the dash with power connected, you can short things out, blow things up. disconnect your battery first, remove the panels you removed earlier and check carefully for burnt wires damaged plugs etc then reassemble checking all fuses as you go, don't forget to check all earth points. after it is back together reconnect the battery taking care that connections are good and the battery is charged, now that i have scared you, the problem was probably only a bad connection on the battery but you can damage the BCM doing what you did, that may lead into repair in excess of $1000

Here's some info as it sound like the theft deterrent is armed.

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Reset Procedure

NOTE: This information applies to a Vehicle Theft Security System (VTSS) that was armed when the battery was disconnected and reconnected.

When the armed VTSS senses that the battery has been disconnected and reconnected, it enters its power-up mode. In the power-up mode the alarm system remains armed following a battery failure or disconnect. If the VTSS was armed prior to a battery disconnect or failure, the system will have to be actively or passively disarmed following a battery reconnection.

The power-up mode will also apply if the battery goes dead while the system is armed and battery jump-starting is attempted. The engine no-run feature will prevent the engine from starting until the alarm system has been actively or passively disarmed.

Passive disarming of the Vehicle Theft Security System (VTSS) occurs when the vehicle is unlocked using the key to unlock either front door or the liftgate. Active disarming of the VTSS occurs when the vehicle is unlocked by depressing the Unlock button of the Remote Keyless Entry (RKE) transmitter.

Once the alarm has been activated (horn sounding, lights flashing, and the engine no-run feature), either disarming method will deactivate the alarm.

Depressing the Panic button (if equipped) on the RKE transmitter will also disarm the VTSS, but the horn will sound and the lights will flash for about three minutes as part of the Panic feature. The horn and lights can be stopped by pressing any of the RKE transmitter's buttons or driving the vehicle above 15 mph.

My 02 trailblazer pulled that stuff on me. Finally disconnected both battery posts, touched together for 60 seconds. Pulled both PCM fuses together, reinstalled, reconnected the battery and started fine. Gremlins at play I guess.

disconnect the positive cable on the battery for 10 minutes. this will reset the trucks computer and the security system.when you reconnect the battery, you'll need to lock the doors and unlock them.with the key , usually locking the doors manually with the key does the trick,but if you've already done this,try disconnecting the battery for 10minutes. that should do it for you. if your batterys weak,your security system may go off to alert you that somethings wrong. if it resets,suggest you have the battery tested or being bad. thank you for choosing fixya.com!

with the key turned on disconnect the positive post of the battery and reconnect it again. Make sure you leave your window down incase the doors lock automatically.Once you have reconnected the battery try starting your car. I have seen this work several times but no quarantee. Also you will have to reset the code to your radio.Hope this helps.

Disconnect the battery. Unbolt starter,disconnect wiring. Reinstall wiring and starter. Reconnect battery. You will need a 10mm socket and a 13 mm socket for the bolts and nuts.