Radiator Cooling Fan Control Module: Testing and Inspection

FAN CONTROL MODULE CHECK





1. Remove the fan control module connector.
2. Turn the ignition switch to the "ON" position, and measure the voltage between the harness-side connector terminals.
Standard value: Battery positive voltage





3. Connect the fan control module connector, and disconnect the condenser fan motor connector.
4. Ensure that the A/C switch is off, and start the engine and run it at idle.
5. Measure the voltage between the fan control module-side connector terminals.
Standard value: 1 volt or less

WARNING
Stay clear of the fan when the fan starts running.

6. Turn the A/C switch to the "ON" position.
7. Measure the voltage between the fan control module-side connector terminals while the fan is running. The voltage should repeat the values 1) and 2) below.
Standard value:
1) 8.2 ± 2.6 volts
2) Battery positive voltage ± 2.6 volts
8. If the voltage does not repeatedly change as indicated, replace the radiator fan motor.