P1489Crankcase ventilation (PCV) heater circuit fault
- Ford code · Engine
- How the car detects it
- The engine computer controls a small heater that keeps the crankcase ventilation (PCV) valve from freezing in cold weather, and found its circuit voltage too low or too high. Ford also asks to check that the right PCV valve is fitted and the heater is plugged in.
- What you may notice
- Check-engine light possible
- Likely causes
- PossiblePCV heater wiring open or shorted, or connector unplugged
- PossiblePCV heater assembly
- RareWrong PCV valve fitted
- 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.