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Home >> Infiniti >> 2009 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U1000 To P0308 >> DTC P0116: ECT Sensor >> On Board Diagnosis Logic

On Board Diagnosis Logic

DTC DETECTING CONDITION AND POSSIBLE CAUSE REFERENCE CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0116
0116
Engine coolant temperature sensor circuit range/performance Engine coolant temperature signal from engine coolant temperature sensor does not fluctuate, even when some time has passed after starting the engine with pre-warming up condition.
  • Harness or connectors (High or low resistance in the circuit)
  • Engine coolant temperature sensor