* Height Sensors (Level Sensors): These are crucial. There's usually one at each corner of the car, measuring the ride height relative to the chassis. They're often located near the suspension struts or shock absorbers, sometimes integrated into the strut itself. You might find them somewhat hidden beneath plastic covers or near the frame rails.
* Compressor Pressure Sensor: This sensor monitors the pressure in the air suspension system. It's typically located near the air compressor itself, which is usually found in the engine bay or under the car near the rear suspension.
* Air Spring Pressure Sensors (Possibly): While less common on the older DTS systems compared to later models, some may incorporate individual pressure sensors within each air spring. If present, they would be integrated within the air spring units themselves.
To find them accurately:
1. Consult a Repair Manual: A factory service manual specific to your 2001 Cadillac DTS will provide the exact locations with diagrams. This is the best resource.
2. Use an Online Parts Diagram: Websites selling Cadillac parts often have diagrams you can browse. Search for your car's year, make, and model, and look for diagrams of the suspension system.
3. Careful Visual Inspection: With the car safely supported on jack stands, carefully inspect the suspension system. Look for small, electrical sensors near the air springs and struts. However, proceed with caution and avoid damaging any components.
Remember safety first. Working on the air suspension system requires some mechanical knowledge. If you're not comfortable, have a qualified mechanic perform any diagnosis or repairs.
