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Home >> Infiniti >> 2005 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> 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. Disconnect engine coolant temperature sensor harness connector.
  4. Connect 150Ω resistor to engine coolant temperature sensor harness connector.
  5. Start engine and make sure that cooling fan operates.
    CAUTION: Be careful not to overheat engine.
  6. If NG, go to "DIAGNOSTIC PROCEDURE ".
    Fig 1: Identifying Coolant Level In Reservoir
    G02389094Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Checking Higher Speed Operation Of Cooling Fan
    G02389095Courtesy of NISSAN MOTOR CO., U.S.A.
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