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Home >> Mitsubishi >> 1998 >> Montero 4WD V6-3.5L SOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> A/C Signal >> Description and Operation
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A/C Signal: Description and Operation





OPERATION





- The air conditioning switch applies battery positive voltage to the engine control module when the air conditioning is switched ON.





- When the air conditioning signals are input, the engine control module activates the idle air control motor, and also switches ON the power transistor. As a result, current flows to the compressor clutch relay coil and the relay switch is switched ON; the air conditioning compressor's magnetic clutch is activated.
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