What does P0900 Mean? OBD-II Code P0900 is defined as a Clutch Actuator Circuit/Open The Clutch locks the transmission and engine together. On some vehicles the clutch is electronically controlled by the Transmission Control Module (TCM). If the clutch does not operate as requested, code P0900 will be set. engine code P0900P0900 fixobd P0900dtc P0900obd code P0900obd2 P0900P0900 car codediagnostic code P0900car code P0900check engine code P0900fehlercode P0900P0900 fiatcodigo P0900codigo falla P0900P0900 kody b??dówcodigo de falla P0900 What are the common causes of P0900 ? Faulty Clutch Actuator Clutch Actuator harness is open or shorted Clutch Actuator circuit poor electrical connection How do you troubleshoot P0900 ? The engine system, in conjuction with the engine control module (ECM)/powertrain control module (PCM), activates the P0900 code solenoid valve to control oil pressure to the engine mechanism that is installed in the valve system to switch valve timing between Low and High.If the engine solenoid valve has an open or short circuit, a DTC is stored. Searches related to P0900 - Clutch Actuator Circuit/Open p0900 code toyota yaris what is a clutch actuator p0900 smart clutch actuator circuit low toyota yaris clutch actuator clutch actuator circuit high clutch actuator smart car how does a clutch actuator work