Radiator Fan System: Inspection: Notes

CAUTION:

Be careful not to let your hands or other objects get caught in the rotating parts.
Since some of the power supply circuits are shared with other system, check such system other than the radiator fan system for faulty conditions before proceeding any further.
Since more than one faulty conditions may occur simultaneously, once work is done perform "Basic Inspection of Radiator Fan System" to confirm that the system is working properly.
Since battery discharge may occur, charge the battery as necessary. Ref. to STARTING/CHARGING SYSTEMS (H4DO)>Battery>CHARGE .

Operating condition:

Vehicle speed	A/C compressor load	Engine coolant temperature
		Increase: 98°C (208°F) or less Decrease: 96°C (205°F) or less	Increase: 99-104°C (210-219°F) Decrease: 97-102°C (207-216°F)	Increase: 105°C (221°F) or more Decrease: 103°C (217°F) or more
		Radiator fan operation	Radiator fan operation	Radiator fan operation
During acceleration: 19 km/h (12 MPH) or less During deceleration: 10 km/h (6 MPH) or less	OFF	OFF	Low-Speed	High-Speed
	Low	Low-Speed	Low-Speed	High-Speed
	High	High-Speed	High-Speed	High-Speed
During acceleration: 20-69 km/h (12-43 MPH) During deceleration: 11-64 km/h (7-40 MPH)	OFF	OFF	Low-Speed	High-Speed
	Low	High-Speed	High-Speed	High-Speed
	High	High-Speed	High-Speed	High-Speed
During acceleration: 70-134 km/h (43-83 MPH) During deceleration: 65-129 km/h (40-80 MPH)	OFF	OFF	Low-Speed	High-Speed
	Low	OFF	Low-Speed	High-Speed
	High	Low-Speed	High-Speed	High-Speed
During acceleration: 135 km/h (84 MPH) or more During deceleration: 130 km/h (81 MPH) or more	OFF	OFF	OFF	High-Speed
	Low	OFF	Low-Speed	High-Speed
	High	OFF	Low-Speed	High-Speed