Expedition 4WD V8-281 4.6L SOHC (1998)
Compressor/Pump Relay: Description and Operation
The compressor relay is energized by the control module to have high current flow from the battery to the compressor motor.
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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.