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Home >> Infiniti >> 2011 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - G37 Convertible - DTC U0101 Through P0153 >> DTC P0117, P0118: ECT Sensor >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC DETECTING CONDITION AND POSSIBLE CAUSES

DTC No. Trouble Diagnosis Name DTC Detecting Condition Possible Cause
P0117 Engine coolant temperature sensor circuit low input An excessively low voltage from the sensor is sent to ECM.
  • Harness or connectors (The sensor circuit is open or shorted.)
  • Engine coolant temperature sensor
P0118 Engine coolant temperature sensor circuit high input An excessively high voltage from the sensor is sent to ECM.
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