1999 Cadillac DeVille "theft security service key" Questions

theft security came on i cant started Thanks for choosing FixYa and welcome. The alarm is the reason you can't start the car. You will need the security code. Check your owner manual for this code

...theft system malfunctions may end up with the car not starting. Here the learning procedure: Pit ignition ON keeping engine OFF. Turn key to start the engine, then release the key to ON position (the ...

...THEFT SECURITY.THE IMMOBILIZER CONTROL MODULE TO STARTER SIGNAL OPEN SHORT TO POSITIVE OR GROUND.YOU CAN TRY THIS PROCEDURE SWITCH ON THE IGNITION  SWITCH FOR 10 MINUTES  WATCH THE ...

...theft prevents car from starting key less entry system goes thru key decoder.common and likely problem is key tumbler assy. wires (small like speaker wires) breaks off key tumbler which will cause ...

theft system on the vehicle, you're pretty much on your own to disable it. It sounds like to me that your security system is failing. I had this happen to my chevy it is really common in GM vehicles..

...theft system. Security - Pwr Locks - Horn - Pwr Trunk Release _ Int Lights - and maybe The Emergency Flasher as well. Be sure and check under the Dash, Hood and under the Back seat. Cadillac ...

...theft system may be getting confused thinking someone is trying to bypass the fuel pump cut off. Regards Dan Your ECM seems faulty. Are there any codes read by the scantool if/when you do get it to ...

security system problem car may not restart any ideas? if you have an anti theft syestem you need to take it out or by pass it if its lojack good luck but if its an other kind i could help you out Had

...theft system/car may not start on dash board and asks me to remove key from ignition and wait 3 minutes then start car. Is there anything wrong or how do I reset this? You will have to wait the three ...

...theft system that wont let vehicle start Generally speaking, if the security light is on and the engine will not crank, the VATS system is not reading the chip in the key. Either the chip has failed, ...