P090B code meaning
Clutch B Actuator Control Circuit Performance
Powertrain system Generic code P09xx codes Check engine light
What P090B means
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.
P090B at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor1 to 4 hours
- Clears after repairAfter a drive cycle
Symptoms of P090B
- Check engine light on
- Shudder or slipping in even gears and reverse
- Delayed or missed shifts, possible limp mode
Common causes of P090B
- Most likelyWorn or sluggish clutch B actuator motor
- PossibleTCM fault (Ford program 14M02 lists this code)
- PossibleDamaged harness between TCM and clutch B motor
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Clutch b actuatorWiring harnessTCM
What each part of P090B means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 9 | Area: transmission. |
| 0B | The exact fault in that area. |
What to do next
- Note P090B and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P090B
What does P090B mean?
P090B means "Clutch B Actuator Control Circuit Performance". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P090B?
Drive gently and only to a workshop. With P090B the car can go into limp mode (reduced power) to protect itself.
Will P090B fail an emissions test?
Yes, it can. P090B is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P090B to fix?
Difficulty: medium. A typical repair takes 1 to 4 hours of work. This is a job for a workshop.
Will P090B clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.