P2677Air Cleaner Inlet Control Circuit High
- Generic OBD-II code · Powertrain
- How the car detects it
- The counterpart to P2676: the controller sees the drive line of the air cleaner inlet flap at too high a voltage, so it cannot pull the actuator in when asked. A short from the control wire to battery voltage, a failed output stage, or an open coil that leaves the line at supply level produce this pattern. In Ford's 2014 gasoline code list P2677 appears next to P2676, again as a continuous check without the MIL mark, meaning a stored code need not light the warning lamp. Beyond that list no manufacturer documents P2677 publicly. CARB's rules for monitored outputs explain why the driver stage is watched at all. The flap typically remains in its unpowered default position, and the car drives normally.
- What you may notice
- Code stored, often without warning lamp
- Inlet flap remains in its default position
- Likely causes
- LikelyControl wire shorted to battery voltage
- PossibleOpen coil in the flap actuator
- RareFailed output stage in the control module
- Repair
- Easy · Often possible to do yourself.Typical cost: €20 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.