OBD Codes List

Diagnostic reference · P2C4A

P2C4A

Clutch Actuator Position Sensor Circuit

System
Powertrain control (P code)
Lamp
Check Engine Light
Category
Powertrain - Fuel/Air Metering

What it means

P2C4A means Clutch Actuator Position Sensor Circuit.

Where it lives

For P2C4A, the circuit described runs through the sensor. The description of P2C4A reports a fault at the sensor.

Check these first

  • An open in the clutch actuator position sensor circuit
  • A clutch actuator position sensor with a failed element
  • Contamination at the clutch actuator sensor connector
  • Damaged wiring to the clutch actuator sensor

What to do next

  1. Read clutch actuator position on a scan tool
  2. Inspect the clutch actuator sensor connector
  3. Test the sensor circuit for an open and a short
  4. Measure the clutch actuator position sensor resistance
  5. Replace the clutch actuator position sensor if the circuit tests good
  6. Clear the code and retest

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Updated

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