Reference meaning
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.
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A 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.
Scan worksheet →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/PERFORMANCE
P051B-00Crankcase Pressure Sensor Circuit Range/Performance
P051B-00Crankcase Pressure Sensor Circuit Range/Performance
Manufacturer communications
23Original wording in English
JEEP, RAM
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 Pressure Sensor Circuit Range/performance. This bulletin involves replacing the clean air duct assembly.
LINCOLN
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
"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 Codes (DTCs) have been set: ● **P00F3-00 - Humidity Sensor Circuit Range-performance.** ● P00C6-00 - Fuel Rai…
JEEP
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 Codes (DTCs) have been set: ? **P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. ? P06DD-00 - Engine O…
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 |
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.