Powertrain, generic · Transmission

P087E Clutch Position Sensor B Circuit Intermittent

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

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. Ford sets P087E for a sequence fault: when the clutch B motor turns, its three Hall sensors produce a fixed pattern; if a step is skipped or the order is wrong, motor and clutch position become unreliable. Typical are sporadic Hall dropouts and loose contacts. The counterpart for clutch A is P0809.

Likely causes

Hall sensor in the clutch B motor dropping out
Loose contact at motor or module connector
Motor sluggish or slipping mechanically
Evaluation in the gearbox module faulty

Symptoms

  • MIL or transmission warning on
  • Sporadic judder when pulling away or shifting
  • Delayed gear changes

Repair estimate

DifficultyHardWorkshop job
Parts and labour€300–1,300
Time1–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

clutch position sensorclutch actuator motorsensor wiringtransmission control module

Related codes

P0809P087AP087BP07A4P07A5

References: newtonnet.co.uk, law.cornell.edu.