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How to reprogram computer in 1997cadillac DeVille without driving it someone help please.

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You can't program this unless you have a GM TECH 2 scan tool, so not sure what you are referring to about "programming" it. Do you mean clear the drive cycle OBD2 test?

Posted on Dec 30, 2016


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How to reprogram computer without driving it

How to reprogram computer without driving it ????????

Dec 30, 2016 | Cars & Trucks

1 Answer

I have a 2001 cadillac deville that is completly dead.. we put a new alternator and a new battery but would still die over night. So we took it to a mechanic and ge said the car went into a system lock and...

Wouldn't hurt to get another opinion before resigning yourself that only a dealership might have the sophisticated equipment to unlock and reprogram everything to get it running again.
You know how luxury cars have more bells and whistles than base models, and therefore more expensive to fix or diagnose.

GM techs use a hand held scanner called a Tech-II scanner that communicates with the pcm and can command certain tests or functions. Maybe you could find an independent shop with this capability and experience. It would be a lot cheaper than going to the dealer, but you may be forced into that route if your car's computer has to be reprogrammed. Get a second opinion.

Oct 02, 2017 | 2001 Cadillac DeVille

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97 deville poor mileage since new.(elderly driver)

scrap this gas guzzling machine and recommend an electric car or a peugeot 107 or a citreon C1 that do 50+++++ miles per gallon

Apr 30, 2010 | 1994 Cadillac DeVille

1 Answer

Replaced the ecm computer on 2001 dodge durango then start it up and it runs and then cuts itself off after 15 seconds

The ECU would have to be programmed from the dealer. It normally costs somewhere around $100 to have it reprogrammed. The reason it needs reprogrammed is because the factory theft module in your car is different than the theft module in the car that the "new" ECU came from. I had this problem with my 1997 Cadillac Deville.

All you would have to do is get it to a Dodge dealership and have them reprogram the ECU. Make sure you explain that you just replaced the ECU, and you need it reprogrammed to match your SUV.

Please vote on my solution whether good or bad. Thanks! :D

Oct 25, 2009 | 1999 Dodge Durango

1 Answer

I have a 2006 Chevy Malibu, changed out ignition switch several months ago and had to have theft system reset. Yesterday, went to store, locked car as usual came back to car and now it cranks but wont...

try another key first, if not some locksmiths have the computers to reprogram. call dealer tellem they just programed and that the car wont star again,good luck!

Oct 02, 2009 | 2006 Chevrolet Malibu

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No juice to ac compressor

check fan relay to see if it is getting power

May 21, 2009 | 1995 Cadillac DeVille

2 Answers


Someone mentioned that the airbag and seat belt buckle were connected and that the buckel may get dirt inside so I took a can of compressed air that I us for my computer and sprayed it into the buckels. To my great surprise and relief, the problem was solved.....thanks for your help and I';ll be back when my next mystery occurs.....Ron

May 14, 2009 | 2002 Cadillac Deville

3 Answers

Keyless remote reprogramming

this has to be reprogrammed at a dealership because they are the only ones that have a computer to do it

Feb 21, 2009 | 1998 Cadillac DeVille

1 Answer

1999 Cadillac Deville shut down while driving please someone help!!!!!!1

Have the dealership call GM and get a Cadillac professional to their dealership..they CAN do it... ( I am a former GM Supplier Quality Engineer )

Aug 23, 2017 | 1999 Cadillac DeVille

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