Except 4 - Door Model For Canada

Auto Compressor Control Unit HI Signal Output Conditions:

Fan Operation Conditions:

1. When auto compressor control unit outputs LO signal (0 V)
- When the engine coolant temperature goes up to 85° (185°F), the thermo switch of radiator is activated.
- This energizes the radiator fan motor relay, causing the radiator fan to start rotating.
2. When auto compressor control unit outputs HI signal (Battery positive voltage)
- The condenser fan motor relay and radiator fan motor control relay are turned on by the power from the auto compressor control unit, and this runs the condenser fan and radiator fan.