FixVault

DTC Detection Logic

DTC No. Trouble Diagnosis Name (Trouble diagnosis content) DTC Detecting Condition Possible Cause
P0117 ECT SEN/CIRC (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 ECT SEN/CIRC Engine coolant temperature sensor circuit High input) An excessively high voltage from the sensor is sent to ECM.