OBD Codes List

Diagnostic reference · P0809

P0809

Clutch Position Sensor A Circuit Intermittent

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

What it means

P0809 means Clutch Position Sensor A Circuit Intermittent.

Where it lives

For P0809, the sensor sits on the circuit this code reports. The description of P0809 reports a fault at the sensor.

Check these first

  • A sensor A connector losing contact
  • Chafed clutch position sensor A wiring
  • A sensor A failing when hot
  • A faulty clutch pedal switch
  • Low battery voltage

What to do next

  1. Road test and watch clutch position sensor A data
  2. Wiggle test the sensor A connector and harness
  3. Measure the sensor A signal hot
  4. Check the pedal switch and battery voltage
  5. Replace the sensor if the signal drops
  6. Clear the code and retest

Look up another code

Enter a full code or a symptom. Press / to search. How to read a code

Type a code above, or start from a symptom or a common code.

Updated

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