ECT Sensor Intermittent
2016-2018 Lincoln MKX 3.7L V6
Description
The Engine Coolant Temperature sensor signal is intermittent or erratic. The PCM detects signal dropouts or fluctuations from the ECT sensor.
Symptoms
- Check Engine Light
- Erratic temperature gauge
- Fan cycling erratically
- Poor fuel economy
Common Causes
- Loose ECT sensor connector
- Corroded wiring
- Faulty ECT sensor
- Damaged connector pins
Diagnostic Steps
- Inspect ECT sensor connector
- Wiggle test wiring while monitoring reading
- Test sensor resistance
- Check wiring continuity
Repair Notes
Repair connector or wiring. Replace ECT sensor if faulty.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
P1117 on Other Vehicles
Lincoln Aviator
2003-2005 4.6L V8
Lincoln Aviator
2003-2005 4.6L V8 DOHC
Lincoln Aviator
2020-2024 3.0L Twin-Turbo V6
Lincoln Aviator
2020-2024 3.0L V6 Twin Turbo
Lincoln Aviator Grand Touring
2020-2024 3.0L Twin Turbo V6 PHEV
Lincoln Aviator Grand Touring
2020-2024 3.0L Twin-Turbo V6 Hybrid
Lincoln Aviator Grand Touring
2020-2024 3.0L V6 Twin Turbo Hybrid
Lincoln Blackwood
2002-2002 5.4L V8
Common Questions
What does code P1117 mean on a 2016-2018 Lincoln MKX?
P1117 stands for "ECT Sensor Intermittent". The Engine Coolant Temperature sensor signal is intermittent or erratic. The PCM detects signal dropouts or fluctuations from the ECT sensor.
What are the symptoms of P1117 on a Lincoln MKX?
Common symptoms of P1117 include: Check Engine Light, Erratic temperature gauge, Fan cycling erratically, Poor fuel economy.
What causes P1117 on a 2016-2018 Lincoln MKX?
Common causes of P1117 include: Loose ECT sensor connector, Corroded wiring, Faulty ECT sensor, Damaged connector pins.