OBD-II code · Powertrain (generic)
P0809 Clutch Position Sensor A Circuit Intermittent
Clutch position sensor A signal jumps or drops out — vibration, loose connector or oil/heat exposure near the bell housing.
Is it safe to drive with P0809?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyLoose connector
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
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
- 0.6–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Clutch Position Sensor A, Sensor Wiring
Related codes
- P0805Clutch Position Sensor A Circuit
- P0806Clutch Position Sensor A Circuit Range/Performance
- P0807Clutch Position Sensor A Circuit Low
- P0808Clutch Position Sensor A Circuit High
- P080AClutch Position Not Learned
- P080BUpshift/Skip Shift Solenoid Control Circuit Range/Performance
- P080CUpshift/Skip Shift Solenoid Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.