Highlander 2WD L4-2.4L (2AZ-FE) (2001)
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Condenser Fan Motor: Description and Operation
RADIATOR FAN AND CONDENSER FAN
SYSTEM OUTLINE
The radiator fan motor and condenser fan motor operates according to the engine coolant temperature SW, A/C single pressure SW, the engine system
condition, and the A/C system condition The FAN NO.1 relay, FAN NO.2 relay, FAN NO.3 relay are turned on/off, to operate the fan motors at low
speed (In series), or high speed (In parallel).
1. LOW SPEED OPERATION
Either when the A/C system is operating, the radiator fan motor and A/C condenser fan motor Operates at low speed.
2. HIGH SPEED OPERATION
When either the engine coolant temperature SW or A/C single pressure SW is, or both of them are turned on, the radiator fan motor and A/C
condenser fan motor operate at high speed.