3000GT SL V6-2972cc 3.0L DOHC MFI (1997)
A/C Signal: Description and Operation
OPERATION
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The air conditioning switch applies the battery voltage to the engine control module when the air conditioning is turned on.
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When the air conditioning ON signal is input, the engine control module drives the idle air control motor and turns ON the power transistor. As a
result, the air conditioning power relay coil is energized to turn on the relay switch, which activates the air compressor magnetic clutch.
