OBD Codes List

Diagnostic reference · P08AA

P08AA

Clutch Pedal Position Sensor A Circuit High

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

What it means

P08AA means Clutch Pedal Position Sensor A Circuit High.

Where it lives

For P08AA, the circuit described runs through the sensor. The description of P08AA reports a fault at the sensor.

Check these first

  • An open in the clutch pedal position sensor A ground
  • A signal wire shorted to voltage
  • A failed clutch pedal position sensor A
  • A backed out connector pin at sensor A

What to do next

  1. Read clutch pedal position sensor A voltage
  2. Press and release the pedal and watch the signal
  3. Test the sensor A ground for an open
  4. Test the signal wire for a short to voltage
  5. Replace sensor A if the wiring tests good
  6. Clear the code and retest

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Updated

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