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Home >> Nissan-Datsun >> 2008 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P1211 Through P2A03 >> DTC P1217 Engine Over Temperature >> On Board Diagnosis Logic
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On Board Diagnosis Logic

If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will rise.

When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is indicated.

This self-diagnosis has the one trip detection logic. 

DTC DETECTING CONDITION AND POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217		 Engine over temperature (Overheat)
  • Cooling fan does not operate properly (Overheat).
  • Cooling fan system does not operate properly (Overheat).
  • Engine coolant was not added to the system using the proper filling method.
  • Engine coolant is not within the specified range.
  • Harness or connectors (The cooling fan circuit is open or shorted.)
  • IPDM E/R (Cooling fan relay)
  • Cooling fan
  • Radiator hose
  • Radiator
  • Radiator cap
  • Water pump
  • Thermostat

For more information, refer to "MAIN 12 CAUSES OF OVERHEATING ".
CAUTION: When a malfunction is indicated, be sure to replace the coolant. Refer to "CHANGING ENGINE COOLANT ". Also, replace the engine oil. Refer to "CHANGING ENGINE OIL ".
  1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to use coolant with the proper mixture ratio. Refer to "ANTI-FREEZE COOLANT MIXTURE RATIO ".
  2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
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