P051B

CRANKCASE PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE

NHTSA 10128992 ↗ NHTSA 10189382 ↗ NHTSA 10216438 ↗

Crankcase Pressure Sensor Circuit Range/Performance

NHTSA 10188809 ↗ NHTSA 10220605 ↗

Crankcase Pressure Sensor Circuit Range/Performance

NHTSA 10251853 ↗ NHTSA 11006243 ↗

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…