Obdaryn

P0903Clutch A Actuator Control 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
Set when the control circuit of the clutch A actuator shows a high state, meaning a motor or control line is shorted to battery voltage. Ford names P0903 as the short-to-power test of the clutch A motor in the DPS6 PowerShift gearbox of the Fiesta and Focus, part of a set with P0900 for an open circuit and P0902 for a short to ground. Ford's OBD summary gives no thresholds for these motor checks. Because both DPS6 clutch motors are identical, swapping them shows whether the motor or the harness and TCM side is at fault. CARB requires such circuit checks on transmission output components. P090D is the same fault on clutch B. The clutch is released and the vehicle may not drive normally.
What you may notice
  • Check engine light on
  • Limp mode, gears missing or no drive
  • Harsh or delayed engagement
Likely causes
  • LikelyMotor or control wire shorted to a supply line
  • PossibleInternal fault in the clutch A actuator motor
  • RareFaulty motor driver in 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 – €1,200

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.