P0831: Clutch Pedal Switch A Circuit Low
What to do
Expect stop-start and cruise control to stop working while the car otherwise drives normally. A cheap switch, and usually an easy repair.
What this code means
Clutch pedal switch A reads below its valid range — normally a short to ground, which the module interprets as the clutch permanently depressed. Because the redundant switch B disagrees, the contradiction is detected rather than acted upon, which is exactly what the pair is for.
The practical result is a vehicle that refuses stop-start and cruise control while behaving normally in every other respect, since the module withholds the functions that depend on a trustworthy clutch signal rather than guessing.
Likely causes
Start here
- Wiring shorted to ground · moderate
- Faulty clutch switch · easy
Less common
- Misadjusted clutch switch · easy
- Corroded or loose connector · easy
Symptoms
Components involved
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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