* The Air Suspension Control Module (ASCM): This is the brain of the system. It receives input from various sensors (height sensors, pressure sensors) and controls the air compressors and valves accordingly. The location of the ASCM varies slightly by year and options, but it's typically near the under-hood fuse box or in a similar area. Check your owner's manual or a wiring diagram.
* The Air Compressor Relay: This relay switches power to the air compressor. Again, its location is not standardized; you'll need a wiring diagram specific to your 1994 Lincoln Town Car to find it. It might be near the battery, in the under-hood fuse box, or in a relay center.
* Various Solenoid Valves: These control the air flow to the individual air struts. These are located near the air struts themselves, in the car's undercarriage.
To find the relevant components, you will need:
1. A wiring diagram: This is crucial. A wiring diagram specific to your 1994 Lincoln Town Car will show the location of the relays, the ASCM, and the solenoids. You can often find these online through automotive repair websites, or via a Haynes/Chilton manual.
2. A multimeter: This will help you test the relays and check for power to the compressor and solenoids, allowing you to pinpoint the faulty component.
Trying to troubleshoot without a diagram is very difficult and could lead to damaging other parts of the system. Using a wiring diagram is highly recommended.
