What you might be thinking of (depending on the specific problem you're trying to troubleshoot) could relate to:
* Multiple driver modules: The LeSabre likely uses several modules controlling different aspects of the vehicle, like the powertrain control module (PCM), body control module (BCM), and possibly others. These aren't grouped together but spread throughout the car, typically under the dash, in the engine compartment, or possibly in the trunk. A specific symptom (like a malfunctioning window, light, or engine problem) would point to the relevant module.
* A misunderstanding of terminology: The term "Quad Driver" might be misremembered or specific to a certain repair manual or shop. A more precise description of the problem or the context where you encountered this term is necessary to determine the actual component.
To get help, you need to describe the problem you're having with your car. For example, if you're having issues with your windows, headlights, or engine performance, that would help pinpoint the likely problematic module. Then, you can consult a repair manual specific to your 1993 Buick LeSabre to find the location of the relevant control modules.
