DTC Advanced Diagnostics: P0831
DTC P0831:Clutch Pedal Position Switch A Circuit High Voltage

General Description

The powertrain control module (PCM) monitors the clutch pedal position switch A for rationality faults. When the PCM cannot detect release status from clutch pedal position switch A (CLUTCH SW(SA)) under certain driving conditions, the detection continues after the vehicle is turned to the OFF (LOCK) mode. If the malfunction continues for a set time after the vehicle is turned to the OFF (LOCK) mode, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type
Execution
Continuous
Sequence
None
Duration
2 seconds or more
DTC Type
One drive cycle/two drive cycles*, MIL off
*: The detection drive cycle may change depending upon the vehicle condition when the fault is detected.

Enable Conditions
Condition
Minimum
Maximum
Engine speed [Engine Speed]
1,500 rpm
–
Vehicle speed [Vehicle Speed]
19 mph (30 km/h)
–
Other
Leave 15 minutes in vehicle OFF (LOCK) mode after the vehicle is driven at above condition.
[ ]: HDS Parameter

Malfunction Threshold
The clutch pedal position switch A (CLUTCH SW(SA)) is ON despite the released clutch pedal.

Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
Clutch pedal position switch A stuck ON failure
Clutch pedal position switch A CLUTCH SW(SA) line short to ground
PCM internal circuit failure

Confirmation Procedure
Operating Condition
1.
Drive the vehicle for a while at engine speed [Engine Speed] above 1,500 rpm.
2.
Turn the vehicle to the OFF (LOCK) mode and leave the vehicle for at least 15 minutes.
3.
Turn the vehicle to the ON mode.
Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Diagnosis Details
Conditions for setting the DTC (for one drive cycle)
When a malfunction is detected, a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory. The MIL does not come on.

Conditions for setting the DTC (for two drive cycles)
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, a Confirmed DTC and the freeze data are stored. The MIL does not come on.

Conditions for clearing the DTC
The Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.