Windstar V6-3.8L VIN 4 (1997)
Compressor/Pump Relay: Description and Operation
The solid-state compressor relay is needed because the generic electronic module (GEM) cannot directly provide the high current needed to run the
compressor motor.
It operates as follows:
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The GEM grounds Circuit 420 (DB/Y) to energize the relay. When energized, the relay connects Circuit 364 (BK/LG) to Circuit 417 (P/O).
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High current then flows from battery to the compressor motor.