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Home >> Nissan-Datsun >> 2012 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0159 (Qr25DE) >> DTC P0117, P0118: ECT Sensor >> On Board Diagnosis Logic >> Notes

On Board Diagnosis Logic: Notes

These self-diagnoses have the one trip detection logic  .

DTC No. Trouble Diagnosis Name DTC Detecting Condition Possible Cause
P0117
0117
Engine coolant temperature sensor circuit low input An excessively low voltage from the sensor is sent to ECM.
  • Harness or connectors (Engine coolant temperature sensor circuit is open or shorted.)
  • Engine coolant temperature sensor
P0118
0118
Engine coolant temperature sensor circuit high input An excessively high voltage from the sensor is sent to ECM.