What is a P04DB code?
What is a P04DB code? Ford DTC P04DB Make: Ford Code: P04DB Definition: Crankcase Ventilation System Disconnected. Description: This DTC sets when the crankcase ventilation sensor voltage is less than 2.5 V. Cause: VBPWR circuit open. What does the crankcase ventilation sensor detect? The crankcase pressure sensor is designed to detect the amount of overpressure within the engine oil in the crankcase. The overpressure is often due to a diesel leakage in the engine oil, causing too much pressure within the system. When does Ford diagnostic trouble code p04db set? This DTC sets when the crankcase ventilation sensor voltage is...