Powertrain
generic / SAE
P0805
Clutch Position Sensor A Circuit
General electrical fault on the clutch position sensor A circuit — used in dual-clutch and automated-manual transmissions to monitor clutch fork or release-bearing position. Without a valid signal the TCM cannot close the loop on clutch engagement.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number8 / 05
Possible causes
- Open or shorted wiring high
- Failed Hall element medium
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1200 €
- Estimated time: 0.6–4 h
- Component: clutch position sensor a
- Component: sensor wiring
- MIL / check engine light
Sources
References
sae:J2012