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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 891 (Engine Control System (Diagnostic Codes & Symptom Tests)) >> DTC/Circuit Diagnosis >> DTC P0117, P0118: ECT Sensor >> On Board Diagnosis Logic >> Notes

On Board Diagnosis Logic: Notes

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

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 (The 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.