Vibe 2006-2007

Electric Fan Switch

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Testing



  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Make sure the engine temperature is below 83 degrees C (181°F).
  4.  
  5. Turn the ignition ON. The fan should not operate.
  6.  
  7. Turn the ignition ON and disconnect the engine coolant temperature sensor. The fan should operate.
  8.  
  9. Make sure the engine temperature is above 93 degrees C (199°F).
  10.  
  11. Start the engine and allow to reach operating temperature, then make sure the A/C switch is OFF.
  12.  
  13. When the coolant temperature is above 97 degrees C (207°F), the fan should operate.
  14.  
  15. Let the engine temperature fall below 95 degrees C (203°F) and the fan should turn off.
  16.  
  17. If the cooling fan is not operating check the following:
    1. Check the engine coolant temperature sensor and replace if defective.
    2.  
    3. Disconnect the fan electrical connector.
    4.  
    5. Connect a test lamp across the fan motor connector and start the engine and the light should come on.
    6.  
    7. Connect the fan motor connector and exchange the fan relay with a known good relay such as the horn relay and see if the fan operates. If the fan operates it may be a bad relay or wiring to the replay.
    8.  
    9. If the fan does not operate, check the harness and wiring to the fan relays and repair as needed. If the wiring is ok, replace the fan assembly.
    10.  

  18.  

 
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