P51A9
P51A9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P51A9 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 P51A9 Fault Code Meaning :
Ford P51A9 Symptoms :
Ford P51A9 Reasons :
How To Fix Ford P51A9 Trouble Code ?
Which Ford cars have the code P51A9?
- P51A9 Ford Aerostar
- P51A9 Ford Bronco
- P51A9 Ford C-Max
- P51A9 Ford C-Max Energi
- P51A9 Ford C-Max Hybrid
- P51A9 Ford Contour
- P51A9 Ford Crown Victoria
- P51A9 Ford EcoSport
- P51A9 Ford Econoline
- P51A9 Ford Edge
- P51A9 Ford Escape
- P51A9 Ford Escape Hybrid
- P51A9 Ford Escort
- P51A9 Ford Everest
- P51A9 Ford Excursion
- P51A9 Ford Expedition
- P51A9 Ford Explorer
- P51A9 Ford Explorer Sport Trac
- P51A9 Ford F-150
- P51A9 Ford F-250
- P51A9 Ford F-350
- P51A9 Ford Fiesta
- P51A9 Ford Flex
- P51A9 Ford Focus
- P51A9 Ford Focus Electric
- P51A9 Ford Freestar
- P51A9 Ford Freestyle
- P51A9 Ford Fusion
- P51A9 Ford Fusion Energi
- P51A9 Ford Fusion Hybrid
- P51A9 Ford Fusion Plug-In Hybrid
- P51A9 Ford GT
- P51A9 Ford Mustang
- P51A9 Ford Mustang Mach-E
- P51A9 Ford Mystique
- P51A9 Ford Probe
- P51A9 Ford Ranger
- P51A9 Ford Taurus
- P51A9 Ford Taurus X
- P51A9 Ford Tempo
- P51A9 Ford Thunderbird
- P51A9 Ford Transit
- P51A9 Ford Transit Connect
- P51A9 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.