Clutch Position Sensor A Circuit Intermittent
What it means
P0809 means the control module is seeing an intermittent signal from the clutch position sensor, which reports how far the clutch is engaged. When that reading cuts in and out, clutch engagement and shifting can become erratic — and on automated-manual gearboxes the car may hesitate or stall pulling away. Intermittent faults like this usually trace to a loose connector or chafed wiring rather than the sensor itself.
Can I keep driving? Often drivable, but clutch engagement may be erratic; on automated-manual gearboxes it can hesitate or stall pulling away — fix it promptly.
Common symptoms
What you'll notice
- Erratic or inconsistent clutch engagement
- Difficulty shifting gears
- Check-engine light that may come and go
- Reduced responsiveness, or hesitation/stalling when moving off (automated-manual gearboxes)
Common causes
Most likely first
- Loose or corroded connector at the clutch position sensorLikely
- Chafed or intermittent wiring in the sensor circuitCommon
- Failing clutch position sensor ACommon
- Clutch pedal or actuator assembly faultLess often
- Failed control module (TCM/ECM)Less often
How to diagnose & fix
Work through it in order
- Wiggle-test and inspect the sensor connector and harness for intermittent contact.
- Monitor the sensor signal on a scan tool while operating the clutch.
- Inspect the clutch pedal or actuator assembly for play or damage.
- Replace the clutch position sensor if the signal drops out.
- Relearn/calibrate the clutch position if the vehicle requires it. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0809?+
Can I just clear P0809?+
Related codes
Often seen with P0809
Read & clear P0809 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.