Radiator Cooling Fan Motor: Service and Repair

REMOVAL
1. Disconnect the ground cable from battery cable.
2. Disconnect the connectors from the fan motor and the harness from shroud.
3. For vehicles with automatic transaxle, remove the oil cooler hose from the shroud.





4. Remove the shroud mounting four bolts.
5. Remove the shroud with the fan motor.
6. Remove the fan mounting clip and detach the fan from fan motor.
7. Remove the three screws and detach the fan motor.

Radiator Fan Motor and Condenser Fan motor





Test





Table

1. Check that the radiator fan rotates when battery voltage is applied between the terminals.
2. Check that abnormal noises are not produced while the motor is turning.

Cooling Fan Control System





ECM controls the cooling fan in 3 steps (LO/MIDDLE/HI) according to the vehicle speed, the air-conditioning load and engine coolant temperature.





ECM Control logic

Radiator Fan Motor Relay





1. Remove the radiator fan motor relay (High and Low) from the relay box in engine room.





2. Check the continuity of the terminals "86" and "85" with an ohmmeter.
3. Apply DC12 V to the terminals "86" and ground the terminal "85".
4. Check the continuity between the terminals "87" and "30".

INSTALLATION





1. Installation is the reverse order of removal procedures.

CAUTION:
1) Make sure the cooling fan does not come into contact with the shroud when installed.
2) After installation, make sure there is no unusual noise or vibration when fan is rotated.