What it means
Manual cars have a switch or sensor on the clutch pedal. It lets the engine start only with the clutch pressed, cancels cruise control, and helps the computer smooth gear changes and run stop-start.
Codes in this group
| Code | Meaning |
|---|---|
| P0805 | Clutch position sensor circuit fault |
| P0806 | Clutch position sensor reading out of range |
| P0807 | Clutch position sensor signal low |
| P0808 | Clutch position sensor signal high |
| P0830 | Clutch pedal switch A circuit fault |
| P0831 | Clutch pedal switch A signal low |
| P0832 | Clutch pedal switch A signal high |
| P0833 | Clutch pedal switch B circuit fault |
Bank 1 is the side of the engine that has cylinder 1. Sensor 1 is before the catalytic converter and sensor 2 is after it. More terms explained.
What you may notice
- Engine will not crank unless the pedal is pushed very hard, or at all
- Cruise control not working
- Stop-start not working
- Jerky revs when changing gear
Common causes
Most likely first:
- A worn or misadjusted pedal switch
- A broken clip or stopper on the pedal
- Wiring fault
What to check first
- Press the clutch pedal fully to the floor when starting
- Look under the dash for a switch hanging loose from the pedal bracket
Have a mechanic confirm. A fault code tells you which system reported a problem, not which part has failed. The same code can have several causes, and they differ between car models. Use this page to understand the code, then have a qualified mechanic test the car before any part is replaced.
After the repair
Once the cause is fixed, the code can be cleared with a scan tool, or the warning light goes out by itself after several trips without the fault. Clearing a code without fixing the cause only hides it for a while. More about clearing codes.
Related codes
Transmission control system request (P0700), Transmission range (gear selector) sensor (P0705), Transmission fluid temperature (P0218), Transmission input and output speed sensors (P0715), Incorrect gear ratio (P0729), Torque converter clutch (P0740), Shift and pressure control solenoids (P0745). All codes.
Written in November 2026. These are generic OBD-II codes, the same on all makes. Causes and repair steps differ between models.