Control the red positive wire into "220V Cooling Fan" low speed relay, air conditioning relay and fan speed control relay. When maintenance should pay attention to their specific position, the fan low speed relay located three relay position of the engine on the right side of the insurance case, the fan speed relays mounted on the driver's feet vice Insurance 217 relay box. The "220V Cooling Fan" low, high-speed operation by double thermal sensitive switch according to the radiator coolant temperature, control relays bond strap achieved. Wherein the control line into the red positive low speed fan relay, air conditioning relay and fan speed control relay. When maintenance should pay attention to their specific location, "220V Cooling Fan" low speed relay located three relay position of the engine on the right side of the insurance case, the fan speed relays mounted on the driver's feet vice Insurance 217 relay box. The fan low, high-speed operation by double thermal sensitive switch according to the radiator coolant temperature, control relays bond strap achieved.