GS 300 L6-3.0L (2JZ-GE) (1993)
--> GROUND, turning the relay ON, so that the A/C magnetic clutch is ON and the A/C compressor operates.
At the same time, the Engine control module (Engine and Electronically Controlled Transmission ECU) detects the magnetic clutch is ON and the
A/C compressor operates. Open direction to avoid lowering the Engine RPM during A/C operating.
When any of the following signals are input to the A/C control assembly, the control assembly operates to turn OFF the air conditioning.
^
Engine Temp. Signal is High.
^ Coolant Temp. Signal is High.
^ A Signal that the Temperature at the air outlet is low.
^ A Signal that there is a large difference between Engine Speed and Compressor Speed.
^ A Signal that the Refrigerant Pressure is Abnormally High or Low.