For 1990-2009 cars only
Auxiliary Cooling Fan
The auxiliary cooling fan provides additional cooling under the following conditions:
| • | Low speed vehicle operations |
| • | Extended idle |
| • | Stop-and-go conditions |
| • | Air conditioning system usage |
The auxiliary cooling fan is behind the grille on the right-hand side of the vehicle.
The auxiliary cooling fan circuit consists of a coolant temperature sensor, relay and auxiliary fan. The circuit to the relay coil will close when the coolant sensor reaches a predetermined temperature. This energizes the relay, adding 12 volts to the auxiliary fan. When the coolant temperature decreases below the setpoint of the sensor, the circuit to the relay will open and the voltage will cease to the auxiliary fan. The cooling fan only operates when the ignition is turned and the coolant temperature sensor is above the set temperature.
