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.
P051BCRANKCASE PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCEP051B-00Crankcase Pressure Sensor Circuit Range/PerformanceP051B-00Crankcase Pressure Sensor Circuit Range/PerformanceP051B-00Crankcase Pressure Sensor Circuit Range/performanceView all · Manufacturer wording →
Manufacturer communications
23Original wording in English
JEEP, RAM
Reported code forms P051B-00
Blocked Make-Up Air (MUA) Solenoid Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P051B-00 - Crankcase…
LINCOLN
Reported code forms P051B
Some 2024 Nautilus vehicles equipped with a FHEV powertrain may exhibit an illuminated MIL with DTCs P0300, P0316 and/or P051B stored in the PCM. This may be due to the software level of the PCM.
JEEP
Reported code forms P051B-00
"Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic…
JEEP
Reported code forms P051B-00
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble…
FORD
Reported code forms P051B
Some 2023 Bronco vehicles built on or before 12-Jun-2023 equipped with a 2.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P051B stored in the powertrain control…
FORD
Reported code forms P051B
Some 2023 Bronco vehicles equipped with a 2.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P051B stored in the powertrain control module (PCM). PCM software is…
Check vehicle applicability
23A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Alfa Romeo | STELVIO | 2018 |
| Dodge | RAM 2500 | 2010 |
| Dodge | RAM 3500 | 2011 |
| Dodge | RAM 3500 | 2010 |
| Dodge | RAM 4500 | 2011 |
| Ford | BRONCO | 2023 |
| Ford | ECOSPORT | 2019 |
| Ford | ECOSPORT | 2018 |
| Ford | ESCAPE | 2019 |
| Ford | ESCAPE | 2018 |
| Ford | ESCAPE | 2017 |
| Ford | RANGER | 2019 |
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.