Powertrain
generic / SAE
P0831
Clutch Pedal Switch A Circuit Low
Clutch pedal switch A input reads stuck low — short to ground or stuck-closed contact. The ECM may treat clutch as constantly disengaged, blocking cruise control or affecting cranking permission on manual transmissions.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number8 / 31
Possible causes
- Switch wire shorted to ground high
- Connector pins corroded - high contact resistance low
- Harness chafing through insulation low
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
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 40–200 €
- Estimated time: 0.2–1 h
- Component: clutch pedal switch a
- MIL / check engine light
Sources
References
sae:J2012