P1117Coolant temperature sensor circuit intermittent
- Ford code · Engine
- How the car detects it
- While the engine was running, the coolant temperature (ECT) sensor circuit briefly went open or shorted. Ford suggests watching the live coolant temperature on a scan tool while wiggling the wiring or tapping the sensor, looking for sudden jumps.
- What you may notice
- Engine temperature reading that jumps on a scan tool
- Likely causes
- PossibleDamaged wiring or connector
- PossibleCoolant temperature sensor
- RareLow coolant level
- Sources
Backed by at least two independent sources.
From Obdaryn's Ford pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.