P090BClutch B Actuator Control Circuit Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- Set when the clutch B actuator circuit is electrically connected but the actuator does not respond as commanded, for example too slowly or with an unexpected current draw. Ford uses P090B on the DPS6 PowerShift transmission. Trade guidance for this gearbox starts with a visual check of the harness from the TCM to the clutch B motor, then swaps the two identical clutch motors: if the code becomes P0901, the motor with its built-in position sensor is faulty; if P090B stays, the circuit or TCM needs pinpoint testing. Ford's TCM program 14M02 for 2011-2015 Fiesta and Focus also lists P090B as a code where the TCM itself can be the cause. P090A, P090C and P090D are the pure circuit faults of clutch B.
- What you may notice
- Check engine light on
- Shudder or slipping in even gears and reverse
- Delayed or missed shifts, possible limp mode
- Likely causes
- LikelyWorn or sluggish clutch B actuator motor
- PossibleTCM fault (Ford program 14M02 lists this code)
- PossibleDamaged harness between TCM and clutch B motor
- 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 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.