P285EShift Fork A Actuator Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P285E is logged when a line of the fork A actuator carries supply voltage where the module expects it to be switched low. Usual explanations are a harness short to a battery-fed wire or a low-side transistor in the module that no longer turns on; with some driver designs, an unloaded output can also read high. Ford names the code for its 2012 DPS6 dual-clutch unit as the short-to-power fault of the shift drum A motor, the drive that sets the forks for gears 1, 3 and 5, and lists it as a MIL code in its 2014 catalogue. The low-side companion is P285D, the open circuit P285B. Because a phase stuck at battery potential prevents controlled rotation, the module stops the motor and leaves the odd gears unavailable until the short is cleared.
- What you may notice
- Engine lamp lit, gears 1, 3 and 5 unavailable
- Gearbox stays in an even gear or neutral
- Likely causes
- LikelyActuator lead shorted to a battery-fed wire in the harness
- PossibleLow-side driver in the transmission module not switching
- RareBridged pins in the actuator or module connector
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.