P0806
Clutch Position Sensor Circuit Range/Performance
- Severity
- Medium
- Driving
- Drivable — book it in
The clutch position sensor is answering, but its reading does not agree with what the module expects - the reported position does not match what the clutch is actually doing. On a system with an automated clutch this usually means wear or lost calibration rather than a dead sensor.
Possible causes
- CommonClutch worn, so its engagement point has moved
- CommonSensor calibration lost or never performed after a repair
- CommonFailing or drifting sensor
- PossibleWorn or sticking clutch actuator
- PossibleHydraulic problem in the clutch circuit - low fluid or air
- PossibleHigh resistance in the wiring skewing the reading
What you might notice
- Judder or slip when moving off
- Harsh or slow gear changes
- Clutch biting point noticeably different
- Transmission warning message
- Check engine light on
What to check, in order
- Watch the reported clutch position through a full engagement on the live data screen and compare it with the specification.
- Run the clutch adaptation or calibration procedure if the vehicle has one. On these transmissions that is a routine step, not a last resort, and it resolves a large share of these codes.
- Assess clutch wear. A clutch near the end of its life moves its engagement point outside the range the module will accept.
- Check the clutch hydraulic fluid level and look for leaks on a hydraulically actuated system.
- Check the wiring and connector for high resistance before replacing the sensor.
Read this code from your own car
Plug an ELM327 adapter into the OBD-II port under the dashboard. Pin16 reads every stored, pending and permanent code, explains each one like this page does — offline, with no account — and shows what the car recorded when the fault was set.
Where this code sits
P00xxP01xxP02xxP03xxP04xxP05xxP06xxP07xxP08xxP09xxP0AxxP0BxxP0CxxP0DxxP0ExxP0FxxP10xxP11xxP12xxP13xxP14xxP15xxP16xxP17xxP18xxP19xxP1AxxP1BxxP1CxxP1DxxP1ExxP1FxxP20xxP21xxP22xxP23xxP24xxP25xxP26xxP27xxP28xxP29xxP2AxxP2BxxP2CxxP2DxxP2ExxP2FxxP30xxP31xxP32xxP33xxP34xxP35xxP36xxP37xxP38xxP39xxP3AxxP3BxxP3CxxP3DxxP3ExxP3Fxx
Transmission
P0800P0801P0802P0803P0804P0805P0806P0807P0808P0809P0810P0811P0812P0813P0814P0815P0816P0817P0818P0819P0820P0821P0822P0823P0824P0825P0826P0827P0828P0829P0830P0831P0832P0833P0834P0835P0836P0837P0838P0839P0840P0841P0842P0843P0844P0845P0846P0847P0848P0849P0850P0851P0852P0853P0854P0855P0856P0857P0858P0859P0860P0861P0862P0863P0864P0865P0866P0867P0868P0869P0870P0871P0872P0873P0874P0875P0876P0877P0878P0879P0880P0881P0882P0883P0884P0885P0886P0887P0888P0889P0890P0891P0892P0893P0894P0895P0896P0897P0898P0899