P40A3

P40A3 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P40A3 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford P40A3 Fault Code Meaning :

Ford P40A3 Symptoms :

Ford P40A3 Reasons :

How To Fix Ford P40A3 Trouble Code ?

Which Ford cars have the code P40A3?

  • P40A3 Ford Aerostar
  • P40A3 Ford Bronco
  • P40A3 Ford C-Max
  • P40A3 Ford C-Max Energi
  • P40A3 Ford C-Max Hybrid
  • P40A3 Ford Contour
  • P40A3 Ford Crown Victoria
  • P40A3 Ford EcoSport
  • P40A3 Ford Econoline
  • P40A3 Ford Edge
  • P40A3 Ford Escape
  • P40A3 Ford Escape Hybrid
  • P40A3 Ford Escort
  • P40A3 Ford Everest
  • P40A3 Ford Excursion
  • P40A3 Ford Expedition
  • P40A3 Ford Explorer
  • P40A3 Ford Explorer Sport Trac
  • P40A3 Ford F-150
  • P40A3 Ford F-250
  • P40A3 Ford F-350
  • P40A3 Ford Fiesta
  • P40A3 Ford Flex
  • P40A3 Ford Focus
  • P40A3 Ford Focus Electric
  • P40A3 Ford Freestar
  • P40A3 Ford Freestyle
  • P40A3 Ford Fusion
  • P40A3 Ford Fusion Energi
  • P40A3 Ford Fusion Hybrid
  • P40A3 Ford Fusion Plug-In Hybrid
  • P40A3 Ford GT
  • P40A3 Ford Mustang
  • P40A3 Ford Mustang Mach-E
  • P40A3 Ford Mystique
  • P40A3 Ford Probe
  • P40A3 Ford Ranger
  • P40A3 Ford Taurus
  • P40A3 Ford Taurus X
  • P40A3 Ford Tempo
  • P40A3 Ford Thunderbird
  • P40A3 Ford Transit
  • P40A3 Ford Transit Connect
  • P40A3 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.