P3A40

P3A40 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3A40 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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 P3A40 Fault Code Meaning :

Ford P3A40 Symptoms :

Ford P3A40 Reasons :

How To Fix Ford P3A40 Trouble Code ?

Which Ford cars have the code P3A40?

  • P3A40 Ford Aerostar
  • P3A40 Ford Bronco
  • P3A40 Ford C-Max
  • P3A40 Ford C-Max Energi
  • P3A40 Ford C-Max Hybrid
  • P3A40 Ford Contour
  • P3A40 Ford Crown Victoria
  • P3A40 Ford EcoSport
  • P3A40 Ford Econoline
  • P3A40 Ford Edge
  • P3A40 Ford Escape
  • P3A40 Ford Escape Hybrid
  • P3A40 Ford Escort
  • P3A40 Ford Everest
  • P3A40 Ford Excursion
  • P3A40 Ford Expedition
  • P3A40 Ford Explorer
  • P3A40 Ford Explorer Sport Trac
  • P3A40 Ford F-150
  • P3A40 Ford F-250
  • P3A40 Ford F-350
  • P3A40 Ford Fiesta
  • P3A40 Ford Flex
  • P3A40 Ford Focus
  • P3A40 Ford Focus Electric
  • P3A40 Ford Freestar
  • P3A40 Ford Freestyle
  • P3A40 Ford Fusion
  • P3A40 Ford Fusion Energi
  • P3A40 Ford Fusion Hybrid
  • P3A40 Ford Fusion Plug-In Hybrid
  • P3A40 Ford GT
  • P3A40 Ford Mustang
  • P3A40 Ford Mustang Mach-E
  • P3A40 Ford Mystique
  • P3A40 Ford Probe
  • P3A40 Ford Ranger
  • P3A40 Ford Taurus
  • P3A40 Ford Taurus X
  • P3A40 Ford Tempo
  • P3A40 Ford Thunderbird
  • P3A40 Ford Transit
  • P3A40 Ford Transit Connect
  • P3A40 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.