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Home >> Mitsubishi >> 2005 >> Endeavor LS, AWD >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling >> On-Vehicle Service >> Fan Control Module Check
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Fan Control Module Check

  1. Remove the fan control module connector.
    Fig 1: Removing Fan Control Module Connector
    G02390220Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    Fig 2: Removing Condenser Fan Motor Connector
    G02390221Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  2. Turn the ignition switch to the "ON" position, and measure the voltage between the harness-side connector terminals.
    1. 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.
    1. Standard value: 1V 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.
    1. Standard value: 
      1. 1)8.2 +/- 2.6V 
      2. 2) Battery positive voltage +/- 2.6 V 
  8. If the voltage does not repeatedly change as indicated, replace the radiator fan motor.
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