P087CClutch Position Sensor B Circuit Low
- 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 P087C no maker is documented; Ford folds Hall faults into P087B. The code means the sensor signal is below its limit: signal wire shorted to ground, supply missing or a sensor without output. As with sensor A (P0807), clutch B can then only run in 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 wire shorted to ground
- Possible5 V supply to the sensor open
- PossibleSensor faulty
- RareModule reference disturbed
- 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.