On my 86 it's directly behind the padded dash.
There are two modules.
One is the "break in" alarm that honks the horn, which is taped to the wiring harness above the passenger foot well light.
The VATS (Vehicle Anti-Theft System) module that prevents the engine from starting is located behind the large padded section with "CORVETTE" on it on the passenger side of the dashboard.
it is under the plastcover where your jack are
Anti-theft module, 1985 Corvette. Under dash on passenger side next to the heater control valve.
Where is the theft deterrent module on 1995 Buick Regal
Under passenger seat
Behide the passengers side air bag
The easiest way to bypass the theft deterrent module is to remove the fuse. The location of the fuse can be found on the inside cover of the fuse box.
it disables the starter and the fuel injectors
The actual module is located in the rear of the car underneath the panel that covers the spare tire area on the passenger side. It is a small box with a red light and is attached to the side of the car.
It's on the passenger side, above the kick plate.
To the best of my knowledge, it is located behind either the passenger side dashpad or behind the "information center" in the middle of the dash
The theft deterrent system will not work.