P438B
P438B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P438B Diagnosis
The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.The position information for the switch becomes Not Available. Remove the duplicate Smart Switch, then use ServiceLink to verify that the correct Smart Switches are configured for the vehicle.
A comparison of pressures from all sensors is made. The smallest difference between the three is determined and a reference pressure is calculated. The Barometric pressure sensor value is compared to the reference value and if the difference is above the threshold a DTC is reported.
Ford P438B Fault Code Meaning :
Ford P438B Symptoms :
Ford P438B Reasons :
How To Fix Ford P438B Trouble Code ?
Which Ford cars have the code P438B?
- P438B Ford Aerostar
- P438B Ford Bronco
- P438B Ford C-Max
- P438B Ford C-Max Energi
- P438B Ford C-Max Hybrid
- P438B Ford Contour
- P438B Ford Crown Victoria
- P438B Ford EcoSport
- P438B Ford Econoline
- P438B Ford Edge
- P438B Ford Escape
- P438B Ford Escape Hybrid
- P438B Ford Escort
- P438B Ford Everest
- P438B Ford Excursion
- P438B Ford Expedition
- P438B Ford Explorer
- P438B Ford Explorer Sport Trac
- P438B Ford F-150
- P438B Ford F-250
- P438B Ford F-350
- P438B Ford Fiesta
- P438B Ford Flex
- P438B Ford Focus
- P438B Ford Focus Electric
- P438B Ford Freestar
- P438B Ford Freestyle
- P438B Ford Fusion
- P438B Ford Fusion Energi
- P438B Ford Fusion Hybrid
- P438B Ford Fusion Plug-In Hybrid
- P438B Ford GT
- P438B Ford Mustang
- P438B Ford Mustang Mach-E
- P438B Ford Mystique
- P438B Ford Probe
- P438B Ford Ranger
- P438B Ford Taurus
- P438B Ford Taurus X
- P438B Ford Tempo
- P438B Ford Thunderbird
- P438B Ford Transit
- P438B Ford Transit Connect
- P438B Ford Windstar
A code is a fault code and it indicates that something has gone wrong with your car's engine.
It can be caused by many different problems, including a faulty battery, a bad fuel pump, or even a cracked exhaust manifold.
You will need to diagnose the problem before you can fix it. The best way to do this is with an OBD scanner tool.
A scan tool will tell you what needs fixing and how much it will cost in order to fix that particular issue.