My car got towed , and when i got it back the L.E.D. below the spd said "anti-theft problem ... car may not restart ... . when the car dose not restart with the key that has the microchip on it , that is suppose to tell the engin computer that i'm not a theif. i get **** in the damdest places for two days. can any one help??? firstname.lastname@example.org
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Verify battery condition by turning on headlights and seeing if they are bright. If ok, the theft system may be activated. Try locking and unlocking doors with the key fob. This will usually reset the theft deterent system.
Does this vehicle start? I had this happen in a 2001 Ford Freestyle. The battery was defective / deader than dead. AAA came out to jump it but nothing worked except the anti theft light that flashed, double speed if you turned it to crank, (Which it wouldn't) I had it towed to Walmart to replace the nearly new battery but it still wouldn't start. I called AAA back to tow it to the Ford dealer where I had to pay $65.00 to get the anti theft key/s and computer reset. I said "key/s" because they didn't tell me that I needed my wife's key because you can't just program ONE key. So either I pay a taxi for a 24 mile round trip or I pay an extra $20.00 for a new anti theft key. After that. I had 3 keys to that van. To make a long story short, Have BOTH keys with you when you take it to be reprogrammed.
Absolutely! If the Passive Anti-Theft System (PATS) "thinks" you are trying to steal the car, it is SUPPOSED to keep it from starting. The problem is that the PATS thinks you are a car theif when you are not.
Below is a table straight out of the service manual for your vehicle. Please note that the FIRST action that must be taken for any PATS system malfunction is to scan the computer system for fault codes.
The anti-theft feature prevents the car from being started when one of
several anti-theft devices is faulty are have otherwise been activated.
The problem you descibe might be the ignition swith, which is known to
wear out quickly on those models. The system can be completly disabled
only when the car is running (meaning the teft deterent system is
inactive after the Passlock II system detects the proper key in the
ingition). A wire can be cut that would perminantly disable Passlock II,
meaning any key that opens the door (or a screwdriver) could start the
car. If the ignition swtich goes out or this wire is cut while the
engine is off (theft deterent system is active) then the car will have
to be towed back to the dealer to have the ignition system replaced and
I have called Chevy and asked how to fix this problem.
If you turn the key to the on position, right before it cranks when the
lights and radio turn on. Leave it there for ten minutes until the anti
theft light turns off. Then turn the key to the off position and then
try starting the car.
Rumour has it that it is a yellow wire to be
cut. Do more research, but D O N ' T cut it with the engine off. See
first paragraph above.
Hope this help (remember rated and comment this). Good luck.
I've got a 97 deville d'elegance that has issues similar to these. Last year the red anti-theft light came on and the car wouldn't start-took it to the dealership and they replaced the PCM? (the main brain for the system) for $900...the guy told us the wiring was so corroded he didn't want to mess with it much. Today the message started flashing on the dash that says "anti-theft problem/ car may not restart" but it still turned over in the driveway a couple times so I am hoping I can reset it. The wiring system is jacked and will probably need to replace the wiring harness completely. Doubt its worth it. Not a secure feeling with 2 babies in the back seat in the middle of winter....
if the vehicle starts then stops and the anti-theft light is flahing you may need to re-set the pass-key system to do this you will need to atempt to start the vehicle and when it stalls leave the key in that position and watch the anti-theft light. it should flash on and off for about 5 to 10 minutes. when it stops flahing turn the ignition to off then try to restart your vehicle