P778A

P778A Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P778A 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford P778A Fault Code Meaning :

Ford P778A Symptoms :

Ford P778A Reasons :

How To Fix Ford P778A Trouble Code ?

Which Ford cars have the code P778A?

  • P778A Ford Aerostar
  • P778A Ford Bronco
  • P778A Ford C-Max
  • P778A Ford C-Max Energi
  • P778A Ford C-Max Hybrid
  • P778A Ford Contour
  • P778A Ford Crown Victoria
  • P778A Ford EcoSport
  • P778A Ford Econoline
  • P778A Ford Edge
  • P778A Ford Escape
  • P778A Ford Escape Hybrid
  • P778A Ford Escort
  • P778A Ford Everest
  • P778A Ford Excursion
  • P778A Ford Expedition
  • P778A Ford Explorer
  • P778A Ford Explorer Sport Trac
  • P778A Ford F-150
  • P778A Ford F-250
  • P778A Ford F-350
  • P778A Ford Fiesta
  • P778A Ford Flex
  • P778A Ford Focus
  • P778A Ford Focus Electric
  • P778A Ford Freestar
  • P778A Ford Freestyle
  • P778A Ford Fusion
  • P778A Ford Fusion Energi
  • P778A Ford Fusion Hybrid
  • P778A Ford Fusion Plug-In Hybrid
  • P778A Ford GT
  • P778A Ford Mustang
  • P778A Ford Mustang Mach-E
  • P778A Ford Mystique
  • P778A Ford Probe
  • P778A Ford Ranger
  • P778A Ford Taurus
  • P778A Ford Taurus X
  • P778A Ford Tempo
  • P778A Ford Thunderbird
  • P778A Ford Transit
  • P778A Ford Transit Connect
  • P778A 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.