P051B · Communications du constructeur

JEEP, RAM · 2026-03-19

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 · 2024-10-15

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 · 2024-08-08

"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 Rail Pressure Too Low - Engine Cranking. ● P06DD-00 - Engine Oil Pressure Control Circuit Performance/Stuck Off. ● P0461-00 - Fuel Level Sensor ""A"" Circuit Range/Performance. ● P051B-00 - Crankcase Pressure Sensor Circuit Range/Performance. ● P2F64-00 - Ion Sense Feedback Circuit A. ● P0331-00 - Knock Sensor 2 Circuit Range/Performance. ● P0300-00 - Multiple Cylinder Misfire. ● P2C90-00 - Crankcase Ventilation System - Hose ""A"" Disconnected. ● P0011-00 - Bank 1…

JEEP · 2024-01-17

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 Oil Pressure Control Circuit Performance/Stuck Off. ? P0461-00 - Fuel Level Sensor "A" Circuit Range/Performance. ? P051B-00 - Crankcase Pressure Sensor Circuit Range/Performance. ? P2F64-00 - Ion Sense Feedback Circuit A. ? P0331-00 - Knock Sensor 2 Circuit Range/Performance. ? P0300-00 - Multiple Cylinder Misfire.** ? P2C90-00 - Crankcase Ventilation System - Hose "A" Disconnected. ? P0011-00 - Bank 1 Camshaft 1 Position Timing Over Advanced Or System Performance.…

FORD · 2023-06-20

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 module (PCM). This may be due to the software in the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM.

FORD · 2023-06-13

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 currently under development to resolve this condition and is scheduled to be available by 30-Jun-2023. Monitor OASIS for updates and schedule a follow up with the customer when the software becomes available

JEEP, RAM · 2021-04-09

Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P051B ? Crankcase Pressure Sensor Circuit Performance, and/or P04DB ? Crankcase Ventilation System Disconnected, Set After Powertrain Control Module (PCM) Replacement

ALFA ROMEO · 2021-02-09

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available softwareand replacing the oil vapor recovery tube. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following Diagnostic Trouble Codes (DTCs) have been set:P032D-00 - Knock Sensor 3 Circuit High. P008A-00 - Low Pressure Fuel System Pressure - Too Low. P034C-00 - Ion Sense System Performance. P051B-00 - Crankcase Pressure Sensor Circuit Range/Performance.

ALFA ROMEO · 2021-02-09

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available softwareand replacing the oil vapor recovery tube. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following Diagnostic Trouble Codes (DTCs) have been set:P032D-00 - Knock Sensor 3 Circuit High. P008A-00 - Low Pressure Fuel System Pressure - Too Low. P034C-00 - Ion Sense System Performance. P051B-00 - Crankcase Pressure Sensor Circuit Range/Performance.

FORD · 2020-05-07

Some 2019 Ranger vehicles built on or before 14-Jun-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P02EE, P02EF, P02F0, P02F1, P050A, P050B, P1026, and/or P051B stored in the powertrain control module (PCM). This may be due to various software parameters within the PCM. To correct the condition, follow the Service Procedure to reprogram the PCM.

FORD · 2020-01-17

Some 2018-2019 Escape vehicles equipped with a 1.5L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P051B stored in the powertrain control module (PCM). This may be due to the crankcase pressure sensor. To correct the condition, follow the Service Procedure steps to replace the crankcase pressure sensor.

FORD · 2019-11-21

Some 2017 Escape vehicles equipped with a 1.5L EcoBoost engine may exhibit an malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P051B stored in the powertrain control module (PCM). This may be due to the crankcase pressure sensor/tube assembly. To correct the condition, follow the Service Procedure steps to replace the crankcase pressure sensor/tube assembly.

FORD · 2019-05-24

Some 2018-2019 EcoSport vehicles equipped with a 1.0L EcoBoost engine build on or before 16-May-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P051B. This may be due to sensor drift on the crankcase ventilation sensor thresholds. To resolve the condition, follow the Service Procedure to reprogram the powertrain control module (PCM).

FORD · 2018-08-17

Some 2017 Escape vehicles equipped with a 1.5L EcoBoost engine and built on or before 1 Feb 2017 may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P04DB and/or P051B stored in the powertrain control module (PCM). Follow the Service Procedure steps to correct the condition.

FORD · 2018-08-17

Some 2017-2018 Escape vehicles with a 1.5L Ecoboost engine and built on 2-Feb-2017 and through 3-Aug-2018 may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P04DB and/or P051B stored in the powertrain control module (PCM). Follow the Service Procedure steps to correct the condition.

FORD · 2018-07-17

Some 2017-2018 Escape vehicles equipped with a 1.5L EcoBoost engine and built on or before 1Jun2018 may exhibit an illuminated MIL with diagnostic trouble code (DTC) P051B stored in the powertrain control module (PCM). Follow the Service Procedure steps to correct the condition.

FORD · 2018-03-30

Some 2018 Escape vehicles equipped with a 1.5L EcoBoost engine may exhibit an illuminated MIL on with DTC P051B. This DTC sets if the crankcase pressure sensor voltage is greater than a calibrated threshold. If DTC P051B is set with any other codes, diagnose and repair those DTCs first. If DTC P051B is the only DTC, use the Integrated Diagnostic System (IDS) datalogger and monitor CRNKCAS_P_V at KOEO for 10 seconds without tapping/disturbing the sensor or connector. If the sensor voltage is found to be less than 3.7V or more than 4.1V, replace the crankcase sensor/hose assembly and leave the sensor connected to the hose. If the hose assembly is replaced, record the sensor voltage in the claim or make a recording of the CRNKCAS_P_V at KOEO with the original sensor and upload the session to…

FORD · 2018-03-15

Some 2018 Escape vehicles equipped with a 1.5L EcoBoost engine may exhibit an illuminated MIL on with DTC P051B. This DTC sets when the PCM detects a sensor offset greater than a calibrated threshold just prior to engine cranking or if it detects crankcase pressure outside of the calibrated limit during low engine air flows. If DTC P051B is set with any other codes, diagnose and repair those DTCs first. If DTC P051B is the only DTC, remove and inspect the crankcase ventilation tube and sensor for ice/water. If any ice/water is found, replace the sensor and tube assembly. If no ice or water is found, follow Pin Point Test HG for the crankcase ventilation sensor and note that step HG4 should be performed KOEO only. Engineering is currently investigating. Monitor OASIS for updates.

FORD · 2017-11-14

Some 2017 Escape vehicles equipped with a 1.5L Gasoline Turbocharged Direct Injection (GTDI) engine and built on or before 1-Feb-2017 may exhibit an illuminated MIL with DTC P051B. Follow the Service Procedure steps to correct the condition.

DODGE · 2013-03-14

FLASH: Engine Systems and PTO Enhancements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Cab chassis trucks equipped with a 6.7L Cummins diesel have a number of software improvements available. This latest Service Bulletin (SB) will include:Improvements To Prevent Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: P0524 - ENGINE OIL PRESSURE SENSOR CIRCUIT LOW P051B - CRANKCASE PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1 U010E - LOST COMMUNICATION WITH DIESEL EXHAUST FLUID CONTROL UNIT P2609 - INTAKE AIR HEATER SYSTEM PERFORMANCE P061A - ETC LEVEL 2 TORQUE PERFORMANCE P1123 - POWER TAKE OFF SYSTEM MONITOR CONTROL ERROR P2579 - TURBOCHARGER SPEED SENSOR…

DODGE · 2013-03-14

FLASH: Engine Systems and PTO Enhancements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Cab chassis trucks equipped with a 6.7L Cummins diesel have a number of software improvements available. This latest Service Bulletin (SB) will include:Improvements To Prevent Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: P0524-ENGINE OIL PRESSURE SENSOR CIRCUIT LOW P051B-CRANKCASE PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE P20EE-SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1 U010E-LOST COMMUNICATION WITH DIESEL EXHAUST FLUID CONTROL UNIT P2609-INTAKE AIR HEATER SYSTEM PERFORMANCE P061A-ETC LEVEL 2 TORQUE PERFORMANCE P1123-POWER TAKE OFF SYSTEM MONITOR CONTROL ERROR P2579-TURBOCHARGER SPEED SENSOR CIRCUIT…

DODGE · 2013-03-14

FLASH: Engine Systems and PTO Enhancements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Cab chassis trucks equipped with a 6.7L Cummins diesel have a number of software improvements available. This latest Service Bulletin (SB) will include:Improvements To Prevent Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: P0524 - ENGINE OIL PRESSURE SENSOR CIRCUIT LOW P051B - CRANKCASE PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1 U010E - LOST COMMUNICATION WITH DIESEL EXHAUST FLUID CONTROL UNIT P2609 - INTAKE AIR HEATER SYSTEM PERFORMANCE P061A - ETC LEVEL 2 TORQUE PERFORMANCE P1123 - POWER TAKE OFF SYSTEM MONITOR CONTROL ERROR P2579 - TURBOCHARGER SPEED SENSOR…

DODGE · 2013-01-23

Flash: Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software.Trucks exhibiting any DTC related to Oxygen Sensor, Oxygen Sensor Module or communication to the Oxygen Sensor Module also require that Service Bulletin?s 25-004-12 (or later bulletin) must be performed (if not previously performed). Pick up trucks equipped with a 6.7L Cummins diesel have a number of software improvements/enhancements available. This SB will include improved robustness for DTC's: P2000 - NOX ABSORBER EFFICIENCY BELOW THRESHOLD P1451 - DIESEL PARTICULATE FILTER SYSTEM PERFORMANCE P0101 - MASS AIR FLOW SENSOR "A" CIRCUIT PERFORMANCE P046C - EGR POSITION SENSOR PERFORMANCE P049D - EGR CONTROL POSITION EXCEEDED LEARNING LIMIT…