OBD-II code · Powertrain (generic)
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.
Is it safe to drive with P0805?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen or shorted wiring
- PossibleFailed Hall element
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
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.6–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Clutch Position Sensor A, Sensor Wiring
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.