B0399

B0399 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B0399 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford B0399 Fault Code Meaning :

Ford B0399 Symptoms :

Ford B0399 Reasons :

How To Fix Ford B0399 Trouble Code ?

Which Ford cars have the code B0399?

  • B0399 Ford Aerostar
  • B0399 Ford Bronco
  • B0399 Ford C-Max
  • B0399 Ford C-Max Energi
  • B0399 Ford C-Max Hybrid
  • B0399 Ford Contour
  • B0399 Ford Crown Victoria
  • B0399 Ford EcoSport
  • B0399 Ford Econoline
  • B0399 Ford Edge
  • B0399 Ford Escape
  • B0399 Ford Escape Hybrid
  • B0399 Ford Escort
  • B0399 Ford Everest
  • B0399 Ford Excursion
  • B0399 Ford Expedition
  • B0399 Ford Explorer
  • B0399 Ford Explorer Sport Trac
  • B0399 Ford F-150
  • B0399 Ford F-250
  • B0399 Ford F-350
  • B0399 Ford Fiesta
  • B0399 Ford Flex
  • B0399 Ford Focus
  • B0399 Ford Focus Electric
  • B0399 Ford Freestar
  • B0399 Ford Freestyle
  • B0399 Ford Fusion
  • B0399 Ford Fusion Energi
  • B0399 Ford Fusion Hybrid
  • B0399 Ford Fusion Plug-In Hybrid
  • B0399 Ford GT
  • B0399 Ford Mustang
  • B0399 Ford Mustang Mach-E
  • B0399 Ford Mystique
  • B0399 Ford Probe
  • B0399 Ford Ranger
  • B0399 Ford Taurus
  • B0399 Ford Taurus X
  • B0399 Ford Tempo
  • B0399 Ford Thunderbird
  • B0399 Ford Transit
  • B0399 Ford Transit Connect
  • B0399 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.