P087DClutch Position Sensor B Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Can trigger limp mode
- How the car detects it
- Clutch position sensor B reports the position of the second clutch or its actuator, the counterpart of sensor A (P0805 ff). The only documented user is Ford's dry DPS6 dual clutch in Fiesta and Focus: clutch B, for reverse and the even gears, is moved by a three-phase motor whose Hall sensors give its position, and the gearbox module drives it through an internal motor driver. For P087D no maker is documented. It means the sensor signal is above its limit: an open signal or ground wire with a pull-up, or a short to voltage. As with sensor A (P0808), clutch B can then no longer be position-controlled and the gearbox goes into limp mode.
- What you may notice
- MIL or transmission warning on
- Jerky take-off or shifts
- Reverse or even gears missing, limp mode
- Likely causes
- LikelySignal or ground wire open
- PossibleSignal wire shorted to voltage
- PossibleSensor faulty
- Repair
- Hard · Usually a job for a workshop.Typical cost: €200 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.