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Home › Infiniti › 2007 › QX56 AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTCS P0451 To P1217 › DTC P1217 Engine Over Temperature › Overall Function Check › With GST

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.
    Fig 1: Identifying Coolant Level In Reservoir Tank
    G04875329Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Be careful not to overheat engine.
  6. If NG, go to "DIAGNOSTIC PROCEDURE ".
    Fig 2: Connecting 150 Resistor To Engine Coolant Temperature Sensor Harness Connector
    G04900602Courtesy of NISSAN NORTH AMERICA, INC.
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