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Home >> Ford >> 2021 >> Expedition XL, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Memory Modules >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> P1117 - Engine Coolant Temperature Sensor Circuit Intermittent

P1117 - Engine Coolant Temperature Sensor Circuit Intermittent

DTC DESCRIPTION P1117 - ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT INTERMITTENT

Description:  This DTC sets when the ECT circuit is intermittently open or short while the engine is running.
Possible Causes: 
  • ECT circuit open
  • ECT circuit short to ground
  • Low engine coolant
  • Damaged engine coolant temperature (ECT) sensor harness or connector
  • Damaged ECT sensor
Diagnostic Aids:  Monitor the ECT PID on a scan tool. Look for sudden changes in the reading when the harness is wiggled or the sensor is tapped.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test DX.