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Home › Infiniti › 2013 › QX56 AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTCS P0171 To P0463 › DTC P0197, P0198: EOT Sensor › DTC Logic › DTC Detection Logic

DTC Detection Logic

DTC No. Trouble diagnosis name
(Trouble diagnosis content)		 DTC Detecting Condition Possible Cause
P0197 EOT SEN/CIRC
(Engine oil temperature sensor circuit low input)		 An excessively low voltage from the sensor is sent to ECM.
  • Harness or connectors

    (The engine oil temperature sensor circuit is open or shorted.)

  • Engine oil temperature sensor
P0198 EOT SEN/CIRC
(Engine oil temperature sensor circuit high input)		 An excessively high voltage from the sensor is sent to ECM.
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