What Does P0834 Mean?
The PCM has detected a low voltage condition on the clutch pedal position switch "B" circuit. This switch informs the transmission control module and engine control module whether the clutch pedal is depressed, which is critical for proper shift interlock and cruise control disengagement. A stuck-closed switch, wiring short to ground, or a failed switch can trigger this code.
Common Causes
40%
Faulty clutch pedal position switch "B"
25%
Short to ground in switch wiring harness
20%
Corroded or damaged electrical connector at switch
10%
Clutch pedal mechanical misadjustment
5%
PCM/TCM internal fault
Diagnostic Steps
1
Read freeze frame data and note clutch pedal position switch B voltage — it should toggle between high and low as the pedal is pressed and released.
2
Inspect the clutch pedal position switch B connector for corrosion, bent pins, or moisture intrusion.
3
Using a multimeter, check for continuity and resistance at the switch itself with the pedal pressed and released to confirm proper operation.
4
Back-probe the switch signal wire at the PCM connector and verify the voltage changes with pedal actuation; if voltage stays low, trace the harness for a short to ground.
5
If wiring and connector are intact, replace the clutch pedal position switch B and clear codes.
Estimated Repair Cost
$50 - $250
Parts + labor, varies by vehicle and location
The PCM has detected a low voltage condition on the clutch pedal position switch "B" circuit. This switch informs the transmission control module and engine control module whether the clutch pedal is depressed, which is critical for proper shift interlock and cruise control disengagement. A stuck-cl...
The most common cause of P0834 (Clutch Pedal Switch "B" Circuit Low) is: Faulty clutch pedal position switch "B"
Typical repair costs for P0834 range from $50 to $250, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The vehicle may not properly disengage cruise control when the clutch is pressed, and the starter interlock may malfunction. Drive cautiously to a repair facility; avoid cruise control use until repaired.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0834 to identify the root cause.
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Quick Info
Category
Powertrain
System
Clutch / Transmission Control
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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