P1117low severityPowertrain
ECT Sensor Intermittent
on 2018 Lincoln MKX 2.7L EcoBoost V6 · AWD
What this code means
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.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1