B1A77

B1A77 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B1A77 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 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 B1A77 Fault Code Meaning :

Ford B1A77 Symptoms :

Ford B1A77 Reasons :

How To Fix Ford B1A77 Trouble Code ?

Which Ford cars have the code B1A77?

  • B1A77 Ford Aerostar
  • B1A77 Ford Bronco
  • B1A77 Ford C-Max
  • B1A77 Ford C-Max Energi
  • B1A77 Ford C-Max Hybrid
  • B1A77 Ford Contour
  • B1A77 Ford Crown Victoria
  • B1A77 Ford EcoSport
  • B1A77 Ford Econoline
  • B1A77 Ford Edge
  • B1A77 Ford Escape
  • B1A77 Ford Escape Hybrid
  • B1A77 Ford Escort
  • B1A77 Ford Everest
  • B1A77 Ford Excursion
  • B1A77 Ford Expedition
  • B1A77 Ford Explorer
  • B1A77 Ford Explorer Sport Trac
  • B1A77 Ford F-150
  • B1A77 Ford F-250
  • B1A77 Ford F-350
  • B1A77 Ford Fiesta
  • B1A77 Ford Flex
  • B1A77 Ford Focus
  • B1A77 Ford Focus Electric
  • B1A77 Ford Freestar
  • B1A77 Ford Freestyle
  • B1A77 Ford Fusion
  • B1A77 Ford Fusion Energi
  • B1A77 Ford Fusion Hybrid
  • B1A77 Ford Fusion Plug-In Hybrid
  • B1A77 Ford GT
  • B1A77 Ford Mustang
  • B1A77 Ford Mustang Mach-E
  • B1A77 Ford Mystique
  • B1A77 Ford Probe
  • B1A77 Ford Ranger
  • B1A77 Ford Taurus
  • B1A77 Ford Taurus X
  • B1A77 Ford Tempo
  • B1A77 Ford Thunderbird
  • B1A77 Ford Transit
  • B1A77 Ford Transit Connect
  • B1A77 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.