I have an active issue right now with my 1999 cadillac deville de'elegance . i just installed a new battery in my car yesterday and all power was restored back into my car but then my dash started to blink an anti theft messege saying that car may not restart ! what do i do from here .can anybody help me with this situation ... this is my only means of transportation ,, really appreciated!
SOURCE: 2000 Cadillac Deville DTS is in anti- theft mode
you can reset the system by turning key to on position for 5-10 mins and then try starting it but its probably a short or grounding prob try the engine to chassis ground
SOURCE: 1997 cadillac concourde deville, car wont start
Try to reset the p.c. by unpluging the batt. for 10 min that should do the trick.
SOURCE: '97 Cadllac Deville Concours reading "Anti Theft System Problem"
make sure your key is clean try again, if not the system will tell you to wait 3 mins while key is in ignition this will reset the system and dash will tell you to start vehicle, you should be fine after that, common cause dirty key!!!!!!!!
SOURCE: 1999 Cadillac Deville- Won't start!
First, obviously, put gas back in the tank.
Check the fuel pump fuse, (20 amp yellow fuse in the lower left corner of the group). If that is not blown, turn the key on and pound hard on the bottom of the fuel tank. The fuel lubricates the fuel pump, once it runs dry, the pump can lock up. Once the pump is immersed in fuel again, a sharp jolt will unstick it and let it pump up to pressure again. If it locks up for too long, the pump will burn out and need replaced.
We found this out by accident, got mad and pounded on the bottom of the tank and the pump jumped to life.
SOURCE: 1997 cadillac deville delagance - anti theft device
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....
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