What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P04DBcrankcase ventilation system disconnectedManufacturer communications
3Original wording in English
FORD, LINCOLN
Reported code forms P04DB
Some 2018-2019 F-150 vehicles built on 23-Sep-2018 and through 28-Mar-2019 and 2019 Edge/Nautilus/Continental/MKZ vehicles built on 4-Dec-2018 and through 29-Mar-2019 and Fusion vehicles built on 16-Jan-2019 and through…
FORD, LINCOLN
Reported code forms P04DB
Some 2017-2018 Fusion and MKZ vehicles equipped with a 2.0L Gasoline Turbocharged Direct Injection (GTDI) engine and built on or before 29-Sep-2017 may exhibit an illuminated MIL with DTC P04DB (crankcase ventilation…
FORD, LINCOLN
Reported code forms P04DB
Some 2017 Fusion and MKZ vehicles equipped with a 2.0L Gasoline Turbocharged Direct Injection (GTDI) engine and built on or before 31Aug2016 may exhibit an illuminated MIL with DTC P04DB (crankcase ventilation system…
Check vehicle applicability
3A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.