The radiator fan relay is built in the relay box [A].

Radiator Fan Relay InspectionWater Pump Impeller Disassembly/Assembly
   
	Remove the water pump impeller (see Oil Pump Removal
	in the Engine Lubrication System chapter).
	The sealing seat and rubber seal may be removed easily
	by hand.
	Apply coolant around the surfaces of the rubber seal and
	sealing seat.
	Install the rubber seal [A] and sealing seat [B] into  ...
   
Vehicle-down Sensor Output Voltage Inspection
   
	Remove the vehicle-down sensor.
	Connect the measuring adapter [A] to the vehicle-down
	sensor connectors as shown in the figure.
Special Tool - Measuring Adapter: 57001-1700
Main Harness [B]
Vehicle-down Sensor [C]
	Connect a digital meter [D] to the measuring adapter
	leads.
V ...
   
Fuel Injector Fuel Line Inspection
   
	Remove:
	Fuel Tank (see Fuel Tank Removal)
	Air Cleaner Housing (see Air Cleaner Housing Removal)
	Disconnect:
	Primary and Secondary Fuel Hoses (see Fuel Hose Replacement
	in the Periodic Maintenance chapter)
Do not remove the nozzle assy from the air cleaner housing.
Be sure to pla ...