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Home >> Infiniti >> 2004 >> I35 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P1217: Engine Over Temperature >> Overall Function Check >> With GST
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With GST

  1. Check the coolant level in the reservoir tank and radiator.

    Allow engine to cool before checking coolant level. 

    If the coolant level in the reservoir tank and/or radiator is below the proper range, skip the following steps and go to DIAGNOSTIC PROCEDURE  .

  2. Confirm whether customer filled the coolant or not. If customer filled the coolant, skip the following steps and go to DIAGNOSTIC PROCEDURE  .
  3. Start engine.

    Be careful not to overheat engine. 

  4. Set temperature control lever to full cold position.
  5. Turn air conditioner switch ON.
  6. Turn blower fan switch ON.
  7. Run engine at idle for a few minutes with air conditioner operating.
    Fig 1: Checking Cooling Fan Operation
    G00787160Courtesy of NISSAN MOTOR CO., U.S.A.

    Be careful not to overheat engine. 

  8. Make sure that cooling fan operates at low speed. If NG, go to DIAGNOSTIC PROCEDURE  . If OK, go to the following step.
  9. Turn ignition switch OFF.
  10. Turn air conditioner switch and blower fan switch OFF.
  11. Disconnect engine coolant temperature sensor harness connector.
  12. Connect 150ohm resistor to engine coolant temperature sensor harness connector.
    Fig 2: Checking Cooling Fan Operation By Connecting Resistor To Engine Coolant Connector
    G00787161Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Restart engine and make sure that cooling fan operates at higher speed than low speed. Be careful not to overheat engine. 
  14. If NG, go to DIAGNOSTIC PROCEDURE  .
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