P7D78

P7D78 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P7D78 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 BHM drives the 5 cab overhead clearance and ID lamps from connector B5 pin C on circuit 46. All other marker and tail lamps are driven from BHM connector B1,K on circuit 23. This circuit connects to the CHM as an input at connector J3,P.

Ford P7D78 Fault Code Meaning :

Ford P7D78 Symptoms :

Ford P7D78 Reasons :

How To Fix Ford P7D78 Trouble Code ?

Which Ford cars have the code P7D78?

  • P7D78 Ford Aerostar
  • P7D78 Ford Bronco
  • P7D78 Ford C-Max
  • P7D78 Ford C-Max Energi
  • P7D78 Ford C-Max Hybrid
  • P7D78 Ford Contour
  • P7D78 Ford Crown Victoria
  • P7D78 Ford EcoSport
  • P7D78 Ford Econoline
  • P7D78 Ford Edge
  • P7D78 Ford Escape
  • P7D78 Ford Escape Hybrid
  • P7D78 Ford Escort
  • P7D78 Ford Everest
  • P7D78 Ford Excursion
  • P7D78 Ford Expedition
  • P7D78 Ford Explorer
  • P7D78 Ford Explorer Sport Trac
  • P7D78 Ford F-150
  • P7D78 Ford F-250
  • P7D78 Ford F-350
  • P7D78 Ford Fiesta
  • P7D78 Ford Flex
  • P7D78 Ford Focus
  • P7D78 Ford Focus Electric
  • P7D78 Ford Freestar
  • P7D78 Ford Freestyle
  • P7D78 Ford Fusion
  • P7D78 Ford Fusion Energi
  • P7D78 Ford Fusion Hybrid
  • P7D78 Ford Fusion Plug-In Hybrid
  • P7D78 Ford GT
  • P7D78 Ford Mustang
  • P7D78 Ford Mustang Mach-E
  • P7D78 Ford Mystique
  • P7D78 Ford Probe
  • P7D78 Ford Ranger
  • P7D78 Ford Taurus
  • P7D78 Ford Taurus X
  • P7D78 Ford Tempo
  • P7D78 Ford Thunderbird
  • P7D78 Ford Transit
  • P7D78 Ford Transit Connect
  • P7D78 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.