4 - Door Model For Canada

Auto Compressor Control Unit HI Signal Output Conditions:

Fan Operating Conditions:

1. When auto compressor control unit outputs LO signal (0 V)
- When the engine coolant temperature goes up to 85°C (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 is turned on by the power from the auto compressor control unit, and this runs the condenser fan.