It is really non fo your consern
The dealer and some parts are very reasonably priced
These go bad over time. Need to pull inner door lining and replace the module. You can find them on eBay for around $60.
The body control module, on your 1997 Oldsmobile, is located on the rear suspension. The module is mounted on the passenger side of the rear axle.
The 1997 Oldsmobile airbag module sensor can be found below the dashboard on the drivers side. The airbag module should be labeled as such.
Could be ignition module
The 1998 Oldsmobile Intrigue turn signal flasher control module is below the dashboard on the drivers side of the passenger compartment. The signal flasher control module should be labeled as such.
the coils are mounted to it
Under coils
The 1999 Oldsmobile headlamp module is located on the firewall in the engine compartment. The headlamp module will be on the drivers side of the firewall.
top right rear of engine.
there is no such thing jackass
the quad driver module is a component of the ECM. you must replace ECM.