B3801

B3801 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3801 Diagnosis

The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.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.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford B3801 Fault Code Meaning :

Ford B3801 Symptoms :

Ford B3801 Reasons :

How To Fix Ford B3801 Trouble Code ?

Which Ford cars have the code B3801?

  • B3801 Ford Aerostar
  • B3801 Ford Bronco
  • B3801 Ford C-Max
  • B3801 Ford C-Max Energi
  • B3801 Ford C-Max Hybrid
  • B3801 Ford Contour
  • B3801 Ford Crown Victoria
  • B3801 Ford EcoSport
  • B3801 Ford Econoline
  • B3801 Ford Edge
  • B3801 Ford Escape
  • B3801 Ford Escape Hybrid
  • B3801 Ford Escort
  • B3801 Ford Everest
  • B3801 Ford Excursion
  • B3801 Ford Expedition
  • B3801 Ford Explorer
  • B3801 Ford Explorer Sport Trac
  • B3801 Ford F-150
  • B3801 Ford F-250
  • B3801 Ford F-350
  • B3801 Ford Fiesta
  • B3801 Ford Flex
  • B3801 Ford Focus
  • B3801 Ford Focus Electric
  • B3801 Ford Freestar
  • B3801 Ford Freestyle
  • B3801 Ford Fusion
  • B3801 Ford Fusion Energi
  • B3801 Ford Fusion Hybrid
  • B3801 Ford Fusion Plug-In Hybrid
  • B3801 Ford GT
  • B3801 Ford Mustang
  • B3801 Ford Mustang Mach-E
  • B3801 Ford Mystique
  • B3801 Ford Probe
  • B3801 Ford Ranger
  • B3801 Ford Taurus
  • B3801 Ford Taurus X
  • B3801 Ford Tempo
  • B3801 Ford Thunderbird
  • B3801 Ford Transit
  • B3801 Ford Transit Connect
  • B3801 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.