P6B77

P6B77 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P6B77 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 2 air solenoid fault, and for air pressure switch short circuit fault.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P6B77 Fault Code Meaning :

Ford P6B77 Symptoms :

Ford P6B77 Reasons :

How To Fix Ford P6B77 Trouble Code ?

Which Ford cars have the code P6B77?

  • P6B77 Ford Aerostar
  • P6B77 Ford Bronco
  • P6B77 Ford C-Max
  • P6B77 Ford C-Max Energi
  • P6B77 Ford C-Max Hybrid
  • P6B77 Ford Contour
  • P6B77 Ford Crown Victoria
  • P6B77 Ford EcoSport
  • P6B77 Ford Econoline
  • P6B77 Ford Edge
  • P6B77 Ford Escape
  • P6B77 Ford Escape Hybrid
  • P6B77 Ford Escort
  • P6B77 Ford Everest
  • P6B77 Ford Excursion
  • P6B77 Ford Expedition
  • P6B77 Ford Explorer
  • P6B77 Ford Explorer Sport Trac
  • P6B77 Ford F-150
  • P6B77 Ford F-250
  • P6B77 Ford F-350
  • P6B77 Ford Fiesta
  • P6B77 Ford Flex
  • P6B77 Ford Focus
  • P6B77 Ford Focus Electric
  • P6B77 Ford Freestar
  • P6B77 Ford Freestyle
  • P6B77 Ford Fusion
  • P6B77 Ford Fusion Energi
  • P6B77 Ford Fusion Hybrid
  • P6B77 Ford Fusion Plug-In Hybrid
  • P6B77 Ford GT
  • P6B77 Ford Mustang
  • P6B77 Ford Mustang Mach-E
  • P6B77 Ford Mystique
  • P6B77 Ford Probe
  • P6B77 Ford Ranger
  • P6B77 Ford Taurus
  • P6B77 Ford Taurus X
  • P6B77 Ford Tempo
  • P6B77 Ford Thunderbird
  • P6B77 Ford Transit
  • P6B77 Ford Transit Connect
  • P6B77 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.