Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P0831
DTC P0831 : Clutch Pedal Position Switch A Circuit High Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information .
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P0831 Clutch Pedal Position Switch A Circuit High Voltage |
DTC (PGM-FI)
- Problem verification
-1. Turn the vehicle to the ON mode.
-2. Clear the DTC with the HDS.
-3. Check the parameter (s) below with the HDS.
Signal Threshold Current Conditions Values Unit Values Unit CLUTCH PEDAL POSITION SWITCH A CLOSE Do the current condition (s) match the threshold?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at clutch pedal position switch A and the PCM, and check the installation of clutch pedal position switch A. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot .
- Clutch pedal position switch A installation check
-1. Check clutch pedal position switch A.
Is it damaged or loose?
YES
Repair or replace clutch pedal position switch A .
NO
Go to step 3.
- Clutch pedal position switch A check
-1. Disconnect the following connector.
Clutch pedal position switch A 2P connector -2. Check the parameter (s) below with the HDS.
Signal Threshold Current Conditions Values Unit Values Unit CLUTCH PEDAL POSITION SWITCH A OPEN Do the current condition (s) match the threshold?
YES
Replace clutch pedal position switch A .
NO
Go to step 4.
- Shorted wire check (CLUTCH SW (SA) line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Jump the SCS line with the HDS.
-3. Disconnect the following connector.
PCM connector A (51P) -4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Test point 1 Clutch pedal position switch A 4P connector No. 4 Test point 2 Body ground Is there continuity?
YES
Repair a short in the CLUTCH SW (SA) wire between the PCM (A18) and clutch pedal position switch A.
NO
The CLUTCH SW (SA) wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM , then recheck. If DTC P0831 goes away and the PCM was updated, troubleshooting is complete. If DTC P0831 goes away and the PCM was substituted, replace the original PCM .
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.