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In the trunk: Look in the trunk, on the bottom of the partial shelf very close to the weatherstripping are three plastic thumb-nuts holding the flimsy seat-back cover on. Unscrew the nuts and remove the cover (cover is contoured to the trunk side of the back-seat and is large but light, covering the seat and the bottom of the shelf). Underneath on the seat back are a ton of modules and relays. The vats/passkey module is a small black box located just right and down from the very center. About 1x3x5" It will have a connector coming out of the bottom.
The connector is a two-row eight pin connector. Unplug it. Looking closely, you will see the rows labeled A and B and columns 1-8. B7 and B8 are what you are looking for. They will be purple w white stripe and white w black stripe, cut em both. Measure the resistance of your key pellet. Get $2 of resistors from Radioshack that add up to the pellet resistor. Solder them in line with one another. Splice that between the two wires ON THE CONNECTOR SIDE. Use butt connectors or just get busy with the soldering. I know that its more than you asked but that's it. It took me about three hours of running to radioshack and splicing and making coffee, etc, etc. I did it on a 94 deville earlier today, a 97 is the same deal. Good luck.
check this link out for the perfect write up. Same everything, the difference is that your module is easier to get to and work on!!!
http://vats.likeabigdog.com/
What else can I help you with?
Where is the crank position sensor located on a Cadillac deville?
where is the crankshaft angle sensor located on a 1997 cadillac deville.
Where is the heater control valve located on a 1997 Cadillac deville d elegance?
97 cadillac deville heater controll
'What parts are interchangeable in a 1997 Cadillac Coupe DeVille a 1997 Cadillac Sedan Deville'?
Cadillac stopped making the Coupe DeVille after 1993.
Will a 1997 Cadillac deville steering wheel fit in a 1995 Cadillac deville?
yes
Where is the Fuel Pressure Regulator located on a 1997 Cadillac Deville Concours?
The 1997 Cadillac Deville fuel pressure regulator can be found on top of the engine. The fuel pressure regulator will be near the fuel injector pump.
Where is the voltage regulator on a 97 Cadillac deville?
The voltage regulator on your 1997 Cadillac Deville, is located on the top of the alternator. Some aftermarket alternators have the voltage regulator, on the back of the alternator.
Where is the outside temperature sensor located on a 1999 Cadillac Deville?
where is the outside temp. sensor located on a 1997 cad.deville
Where is the fuel filter located on a 1997 Cadillac Deville?
Behind the driver, under the vehicle. how do i change it
Can you use Cadillac Catera wheels in a Cadillac deville 1997?
NO.
How do you replace the water pump and where is it located on a 1997 Cadillac Deville?
You can also purchace the tool at carquest for $18.00
Is 1997 Cadillac DeVille rear wheel drive?
No
What is the spark plug gap for a Cadillac deville 1997?
1997 Cadillac Deville 4.6L SFI DOHC 8cylThe Spark Plug Gap.050 (In thousandths of an inch)
