Expedition 2WD V8-281 4.6L VIN W EFI (1997)
Compressor/Pump Relay: Description and Operation
A Solid State Relay is used in the air suspension system for compressor control. The relay incorporates a custom power MOSFET and ceramic hybrid
circuitry. The relay switches high current loads in response to low power signals and is controlled by the logic of the control module.
The compressor relay is energized by the control module to have high current flow from the battery to the compressor motor.