P3A77

P3A77 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3A77 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford P3A77 Fault Code Meaning :

Ford P3A77 Symptoms :

Ford P3A77 Reasons :

How To Fix Ford P3A77 Trouble Code ?

Which Ford cars have the code P3A77?

  • P3A77 Ford Aerostar
  • P3A77 Ford Bronco
  • P3A77 Ford C-Max
  • P3A77 Ford C-Max Energi
  • P3A77 Ford C-Max Hybrid
  • P3A77 Ford Contour
  • P3A77 Ford Crown Victoria
  • P3A77 Ford EcoSport
  • P3A77 Ford Econoline
  • P3A77 Ford Edge
  • P3A77 Ford Escape
  • P3A77 Ford Escape Hybrid
  • P3A77 Ford Escort
  • P3A77 Ford Everest
  • P3A77 Ford Excursion
  • P3A77 Ford Expedition
  • P3A77 Ford Explorer
  • P3A77 Ford Explorer Sport Trac
  • P3A77 Ford F-150
  • P3A77 Ford F-250
  • P3A77 Ford F-350
  • P3A77 Ford Fiesta
  • P3A77 Ford Flex
  • P3A77 Ford Focus
  • P3A77 Ford Focus Electric
  • P3A77 Ford Freestar
  • P3A77 Ford Freestyle
  • P3A77 Ford Fusion
  • P3A77 Ford Fusion Energi
  • P3A77 Ford Fusion Hybrid
  • P3A77 Ford Fusion Plug-In Hybrid
  • P3A77 Ford GT
  • P3A77 Ford Mustang
  • P3A77 Ford Mustang Mach-E
  • P3A77 Ford Mystique
  • P3A77 Ford Probe
  • P3A77 Ford Ranger
  • P3A77 Ford Taurus
  • P3A77 Ford Taurus X
  • P3A77 Ford Tempo
  • P3A77 Ford Thunderbird
  • P3A77 Ford Transit
  • P3A77 Ford Transit Connect
  • P3A77 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.