P77B9

P77B9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P77B9 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.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 OFF.

The disconnected pipe malfunction is detected when the ventilator tube from the valve cover to the separator device is disconnected resulting in a pressure below the lower limit.Both of these malfunctions will result in a DTC being set.

Ford P77B9 Fault Code Meaning :

Ford P77B9 Symptoms :

Ford P77B9 Reasons :

How To Fix Ford P77B9 Trouble Code ?

Which Ford cars have the code P77B9?

  • P77B9 Ford Aerostar
  • P77B9 Ford Bronco
  • P77B9 Ford C-Max
  • P77B9 Ford C-Max Energi
  • P77B9 Ford C-Max Hybrid
  • P77B9 Ford Contour
  • P77B9 Ford Crown Victoria
  • P77B9 Ford EcoSport
  • P77B9 Ford Econoline
  • P77B9 Ford Edge
  • P77B9 Ford Escape
  • P77B9 Ford Escape Hybrid
  • P77B9 Ford Escort
  • P77B9 Ford Everest
  • P77B9 Ford Excursion
  • P77B9 Ford Expedition
  • P77B9 Ford Explorer
  • P77B9 Ford Explorer Sport Trac
  • P77B9 Ford F-150
  • P77B9 Ford F-250
  • P77B9 Ford F-350
  • P77B9 Ford Fiesta
  • P77B9 Ford Flex
  • P77B9 Ford Focus
  • P77B9 Ford Focus Electric
  • P77B9 Ford Freestar
  • P77B9 Ford Freestyle
  • P77B9 Ford Fusion
  • P77B9 Ford Fusion Energi
  • P77B9 Ford Fusion Hybrid
  • P77B9 Ford Fusion Plug-In Hybrid
  • P77B9 Ford GT
  • P77B9 Ford Mustang
  • P77B9 Ford Mustang Mach-E
  • P77B9 Ford Mystique
  • P77B9 Ford Probe
  • P77B9 Ford Ranger
  • P77B9 Ford Taurus
  • P77B9 Ford Taurus X
  • P77B9 Ford Tempo
  • P77B9 Ford Thunderbird
  • P77B9 Ford Transit
  • P77B9 Ford Transit Connect
  • P77B9 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.