Fan Controller Check

WARNING: This page is about a different variant/trim than selected.

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

Fig 1: Removing Fan Controller Connector
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Connect the fan controller connector, and disconnect the condenser fan motor connector.
Ensure that the A/C switch is off, and start the engine and run it at idle.
Measure the voltage between the fan controller-side connector terminals.
Standard value: 1V or less
Turn the A/C switch to the ON position.
WARNING: Stay clear of the fan when the fan starts running.
Measure the voltage between the fan controller-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 V
2. Battery positive voltage +/- 2.6 V
If the voltage does not repeatedly change as indicated, replace the fan controller.

Fig 2: Measuring Voltage Between Fan Controller-Side Connector Terminals
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.