P0900Clutch A Actuator Control Circuit/Open
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Watches the drive circuit of the actuator that opens and closes clutch A in an automated or dual-clutch transmission. The code sets when the module detects an open circuit, so it cannot energise the actuator. Ford documents it for the DPS6 PowerShift gearbox in the Fiesta and Focus, where each dry clutch is moved by a three-phase electric motor with hall sensors; P0900 is the open-circuit check of the clutch A motor, alongside P0902 (short to ground) and P0903 (short to power). Ford program 20B23 for some 2016-2017 Focus cars lists P0900 with a lit check engine light and erratic shifts caused by failed clutch actuator motors. P090A is the same fault on clutch B.
- What you may notice
- Check engine light on
- Erratic or missed shifts, vibration on take-off
- Transmission in limp mode, possibly no drive
- Likely causes
- LikelyFailed clutch A actuator motor (open winding or internal fault)
- PossibleLoose connector or broken wire between TCM and actuator
- RareFaulty motor driver inside the TCM
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €150 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.