The anti-theft code on our 1994 BMW 740iL was plugged in after the battery was replaced + that new code has now disabled the car, as you would want with an anti-theft system. Now, no one knows the code that was mistakenly plugged in, so we can't turn the anti-theft system off. Is there a way to reset the anti-theft system without returning it to a dealer (if they could do it anyway). We contacted the dealer where we bought the car and they suggested disconnecting the battery. Will that work? Is there a better way?

honeymokey

• 3113 Answers
• Posted on May 23, 2009

SOURCE: Starting disabled due to anti-theft system

Replace ignition lock cylinder and chip key. The wires have broken.

SOURCE: 1994 cadillace anti theft system

I just had this same problem with a '96 . do you have a vats key in your '94? you need to bypass the VATS system. read some of the blogs on this site and it will tell you how to do it. I fixed mine with a $2 resistor from radio shack.

SOURCE: 2001 ford focus anti theft

it would be impossible to disable the security feature without a programmer, the entire idea of the system is that no one without the proper key can start the vehicle, there is a program called "sniper" that can disable PATS (the security system in your car, Passive Anti Theft System) but it is costly, another idea to try is to call local lock smiths in your area, it is possible that one may have your key in stock even though the dealer does not,

SOURCE: Isuzu Trooper anti-theft alarm

i put a new stereo in my 1998 isuzu trooper now the anti theft wont let car start what do i do

Wayne Fellows

• 262 Answers
• Posted on Mar 11, 2010

SOURCE: 1996 Explorer anti-theft system won't disable

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.