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P0903 fault code: what it means

P0903: Clutch actuator circuit high on PowerShift: electrical fault in the clutch motor circuit.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. TCM failure
  2. clutch actuator motor
  3. wiring

P0903 by make

Ford

Clutch actuator circuit high on PowerShift: electrical fault in the clutch motor circuit.

Usual causes: TCM failure; clutch actuator motor; wiring

Hyundai

DCT clutch actuator circuit high / malfunction. Can show as no drive or a failed relearn.

Usual causes: clutch actuator electrical fault; actuator wiring fault; actuator out of adjustment

Kia

DCT clutch actuator circuit high / malfunction. Can show as no drive or a failed relearn.

Usual causes: clutch actuator electrical fault; actuator wiring fault; actuator out of adjustment

Not sure what P0903 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.