P78B3

P78B3 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P78B3 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 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 P78B3 Fault Code Meaning :

Ford P78B3 Symptoms :

Ford P78B3 Reasons :

How To Fix Ford P78B3 Trouble Code ?

Which Ford cars have the code P78B3?

  • P78B3 Ford Aerostar
  • P78B3 Ford Bronco
  • P78B3 Ford C-Max
  • P78B3 Ford C-Max Energi
  • P78B3 Ford C-Max Hybrid
  • P78B3 Ford Contour
  • P78B3 Ford Crown Victoria
  • P78B3 Ford EcoSport
  • P78B3 Ford Econoline
  • P78B3 Ford Edge
  • P78B3 Ford Escape
  • P78B3 Ford Escape Hybrid
  • P78B3 Ford Escort
  • P78B3 Ford Everest
  • P78B3 Ford Excursion
  • P78B3 Ford Expedition
  • P78B3 Ford Explorer
  • P78B3 Ford Explorer Sport Trac
  • P78B3 Ford F-150
  • P78B3 Ford F-250
  • P78B3 Ford F-350
  • P78B3 Ford Fiesta
  • P78B3 Ford Flex
  • P78B3 Ford Focus
  • P78B3 Ford Focus Electric
  • P78B3 Ford Freestar
  • P78B3 Ford Freestyle
  • P78B3 Ford Fusion
  • P78B3 Ford Fusion Energi
  • P78B3 Ford Fusion Hybrid
  • P78B3 Ford Fusion Plug-In Hybrid
  • P78B3 Ford GT
  • P78B3 Ford Mustang
  • P78B3 Ford Mustang Mach-E
  • P78B3 Ford Mystique
  • P78B3 Ford Probe
  • P78B3 Ford Ranger
  • P78B3 Ford Taurus
  • P78B3 Ford Taurus X
  • P78B3 Ford Tempo
  • P78B3 Ford Thunderbird
  • P78B3 Ford Transit
  • P78B3 Ford Transit Connect
  • P78B3 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.