Relay Switch Where is the relay switch located in a 1997 Cadillac Deville?

Question edited for clarity.
Question moved to model category.

It is in the engine compartment Fuse and Relay Center. However, it may not be that but good place to start.

https://www.google.com/search?q=1996+cadillac+deville+starter+relay+location

Test, don't just blindly replace components.

https://www.google.com/search?q=1996+Cadillac+Deville+no+crank+no+start

Best idea by far. A pro grade scan tool computer can diagnose in 20 minutes

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What about it ? Where's it located ? How to test it ? What engine ? 4.6 or the 4.9 l
Location - engine compartment micro relay center .relay A

The 'A' and 'F' note horns are located underhood at the front right corner of the vehicle. To "disconnect" the horns, pull off the electrical connectors or remove the horn relay in the underhood fuse block. If they are on continuously, consider replacing this horn relay, but the problem may be in the steering wheel assembly.

Usually the problem is in the switch,there is no RELAY. Check all fuses first

You don't have a relay. It is the turn signal switch.

Sorry to inform you, there is no relay, if there were, it would be located in the fusebox under the hood. It is your switch located on your column. You can hotwire it by finding a red wire on the connector and hooking to + 12 on battery.

it sounds like a relay or fuses bad or it could be the main power switch for the windows on the drivers side door bad i hope this helps you

Oil pressure switches a normally located by or near the oil filter on all cars. :-)

haynes manual has lot's of good info including wiring diagrams. $20 at autozone

Check for a burned fusible link under the hood. If you have power at the fuel pump relay, you could have a bad ignition switch or bad oil pressure switch...accordianman