Lost power and wont start they checked all wiring and battery and cant figure it out

Asked by Jan 22, 2014 at 08:35 PM about the 2002 Cadillac DeVille

Question type: Maintenance & Repair

I tried resetting security with the 10
minute key thing but no go idk
someone please help its been in
shop over a month and still not fixed

2 Answers

19,415

Try this Reset / Relearn for the Security System: Be sure Battery is fully charged & connected With a master passkey III key (Black), turn ON the ignition, with the engine OFF. Observe the Security telltale, after approximately 10 minutes the telltale will turn off. Turn OFF the ignition, and wait 5 seconds . Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes . IMPORTANT: The vehicle learns the key transponder information and/or passwords on the ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle. With a master passkey III key, start the vehicle. The vehicle has now learned the key transponder information and the PCM has now learned the fuel continue password You will have to do this a total of 3 times.

3 of 3 people found this helpful.
80

check for loose ground wire

3 of 3 people found this helpful.

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