* Air compressor relay: This relay controls the power to the air compressor that inflates the air springs.
* Suspension control module (often called the air suspension control module or simply the air suspension computer): This is the brain of the system, receiving signals from various sensors and sending commands to the compressor and other components. It doesn't use a single relay, but rather internal switching circuitry.
* Various other relays and fuses: These protect different circuits within the air suspension system.
Therefore, there isn't one specific "power relay" you can easily replace to fix air suspension problems. Troubleshooting requires identifying the specific malfunction (e.g., compressor not running, leak in the system, faulty sensor). A diagnostic scan tool is usually necessary to pinpoint the problem. The best approach is to consult a repair manual specific to your 2000 Lincoln Navigator or take it to a qualified mechanic experienced with air suspension systems.
