P78A5

P78A5 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P78A5 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 P78A5 Fault Code Meaning :

Ford P78A5 Symptoms :

Ford P78A5 Reasons :

How To Fix Ford P78A5 Trouble Code ?

Which Ford cars have the code P78A5?

  • P78A5 Ford Aerostar
  • P78A5 Ford Bronco
  • P78A5 Ford C-Max
  • P78A5 Ford C-Max Energi
  • P78A5 Ford C-Max Hybrid
  • P78A5 Ford Contour
  • P78A5 Ford Crown Victoria
  • P78A5 Ford EcoSport
  • P78A5 Ford Econoline
  • P78A5 Ford Edge
  • P78A5 Ford Escape
  • P78A5 Ford Escape Hybrid
  • P78A5 Ford Escort
  • P78A5 Ford Everest
  • P78A5 Ford Excursion
  • P78A5 Ford Expedition
  • P78A5 Ford Explorer
  • P78A5 Ford Explorer Sport Trac
  • P78A5 Ford F-150
  • P78A5 Ford F-250
  • P78A5 Ford F-350
  • P78A5 Ford Fiesta
  • P78A5 Ford Flex
  • P78A5 Ford Focus
  • P78A5 Ford Focus Electric
  • P78A5 Ford Freestar
  • P78A5 Ford Freestyle
  • P78A5 Ford Fusion
  • P78A5 Ford Fusion Energi
  • P78A5 Ford Fusion Hybrid
  • P78A5 Ford Fusion Plug-In Hybrid
  • P78A5 Ford GT
  • P78A5 Ford Mustang
  • P78A5 Ford Mustang Mach-E
  • P78A5 Ford Mystique
  • P78A5 Ford Probe
  • P78A5 Ford Ranger
  • P78A5 Ford Taurus
  • P78A5 Ford Taurus X
  • P78A5 Ford Tempo
  • P78A5 Ford Thunderbird
  • P78A5 Ford Transit
  • P78A5 Ford Transit Connect
  • P78A5 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.