CR-V LX 4WD L4-1972cc 2.0L DOHC MFI (2000)
Radiator Cooling Fan Motor: Description and Operation
Radiator and condenser fan operation is controlled by the Powertrain Control Module (PCM) and the radiator fan switch.
The radiator fan and condenser fan relays are supplied battery voltage at all times through fuses 56 and 57. When the ignition switch is in its ON (II)
position, voltage is supplied through fuse 17.
The PCM turns on the condenser fan and radiator fan for engine and refrigerant cooling whenever the A/C is on.
Radiator Fan
Voltage is provided at all times to the radiator fan relay contacts through fuse 57.
Fuse 17 applies voltage to the radiator tan relay coil. The relay is grounded by the radiator fan switch when engine coolant temperature exceeds 199°F (
93°C). The relay can also be grounded by the PCM.
Grounding energizes the relay, applying voltage to the radiator fan motor through the BLK/RED wire, the radiator fan relay contacts, and fuse 57.
