Cooling Fans - Evolution: Other Mitsubishi Lancer IX

COOLING FAN MOTOR

Remove the center under cover. Remove the cooling fan motor connector. Connect battery voltage to terminal No. 1 and ground terminal No. 2 and see if cooling fan operates. (Scheme 9) Also check that there are not abnormal sounds coming from the radiator fan motor. If radiator fan motor is defective, replace it. Install the center under cover.

Scheme 9

FAN CONTROL MODULE

1. Remove the center under cover.
2. Disconnect the fan control module connector. see scheme 5
3. Turn the ignition switch to the ON position. Check for battery voltage between terminals No. 1 and 3.
4. Turn the ignition switch to the LOCK position, and connect the fan control module connector.
5. Insert Probe (MB991222) at the back of the cooling fan motor connector. (Scheme 10)
6. Connect Probe (MB991222) to the circuit tester.
7. Measure voltage between the fan control module terminals. Voltage should be 1V or less.
8. Turn the A/C switch to the ON position.
9. Measure the voltage between the fan control module (side connector) terminals while the fan is running. The voltage should repeat values 5.6-10.8V and battery voltage.
10. If the voltage does not repeatedly change as indicated, replace the fan control module.
11. Install the center under cover.

Scheme 10

Scheme 11