OBD Codes List

Diagnostic reference · P08B8

P08B8

Clutch Pedal Position Sensor B Circuit Intermittent/Erratic

System
Transmission (P code)
Lamp
Check Engine Light
Category
Powertrain - Transmission

What it means

P08B8 means Clutch Pedal Position Sensor B Circuit Intermittent/Erratic.

Where it lives

For P08B8, the circuit described runs through the sensor. The description of P08B8 reports a fault at the sensor.

Check these first

  • A clutch pedal position sensor B connector losing contact
  • A worn sensor B track from pedal travel
  • Chafed sensor B wiring near the pedal bracket
  • A loose sensor B mounting

What to do next

  1. Road test and watch clutch pedal position sensor B data
  2. Wiggle test the sensor B connector and harness
  3. Sweep the pedal slowly and watch for dropouts
  4. Check the sensor B mounting and hardware
  5. Replace sensor B if the signal is erratic
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.