OBD Codes List

Diagnostic reference · P2C4C

P2C4C

Clutch Actuator Position Sensor Circuit Low

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

What it means

P2C4C means Clutch Actuator Position Sensor Circuit Low.

Where it lives

For P2C4C, the circuit described runs through the sensor. The description of P2C4C reports a fault at the sensor.

Check these first

  • A short to ground on the clutch actuator position sensor signal
  • A clutch actuator position sensor that lost internal resistance
  • Fluid contamination at the clutch actuator sensor connector
  • A pinched sensor harness near the clutch

What to do next

  1. Read clutch actuator position on a scan tool
  2. Disconnect the sensor and see if the low reading clears
  3. Test the sensor signal wire for a short to ground
  4. Inspect the sensor harness for pinches
  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.