Powertrain, generic · Transmission

P0806 Clutch Position Sensor A Circuit Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

The 'Clutch Position Sensor A' family (P0805 circuit to P0809, P080A not learned) means different parts by vehicle generation. GM used P0806–P080A until model year 2018 for the analog clutch pedal sensor of its manual cars, then the newer pedal sensor codes P08A8 ff; Saab's 2012 9-3 does the same. Ford's DPS6 dual clutch uses the family for the electric motor of clutch A. P0806 is the plausibility check. On GM's LT4 manual cars the pedal sensor is compared with gear detection: if it reports the clutch pressed while engine and output speed show a valid gear, a filtered position error above 4 % sets the code (above 5.6 mph, not in 4WD low), type A with the MIL after one trip. On Ford's DPS6 it reports a fault of the Hall sensors on the clutch A motor; Saab sets it for a frozen pedal signal and switches off cruise control.

Likely causes

Pedal sensor or Hall sensors of the clutch motor faulty
Pedal sensor misadjusted or not relearned after clutch work
Harness or connector with contact resistance
Clutch actuator motor faulty (DPS6)
Master cylinder leaking, pedal does not fully return

Symptoms

  • Check engine lamp on
  • Cruise control and start-stop not working
  • Engine starts only with the pedal fully pressed, or not at all
  • Dual clutch: jerky take-off, limp mode

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–900
Time0.5–3 h

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

Parts involved

clutch position sensorsensor wiringengine control moduletransmission control module

Related codes

P0805P0807P0808P0809P08A8

References: gsi.ext.gm.com, newtonnet.co.uk, saabwisonline.com.