B3804

B3804 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3804 Diagnosis

The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short circuit fault.The ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.

The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.

Ford B3804 Fault Code Meaning :

Ford B3804 Symptoms :

Ford B3804 Reasons :

How To Fix Ford B3804 Trouble Code ?

Which Ford cars have the code B3804?

  • B3804 Ford Aerostar
  • B3804 Ford Bronco
  • B3804 Ford C-Max
  • B3804 Ford C-Max Energi
  • B3804 Ford C-Max Hybrid
  • B3804 Ford Contour
  • B3804 Ford Crown Victoria
  • B3804 Ford EcoSport
  • B3804 Ford Econoline
  • B3804 Ford Edge
  • B3804 Ford Escape
  • B3804 Ford Escape Hybrid
  • B3804 Ford Escort
  • B3804 Ford Everest
  • B3804 Ford Excursion
  • B3804 Ford Expedition
  • B3804 Ford Explorer
  • B3804 Ford Explorer Sport Trac
  • B3804 Ford F-150
  • B3804 Ford F-250
  • B3804 Ford F-350
  • B3804 Ford Fiesta
  • B3804 Ford Flex
  • B3804 Ford Focus
  • B3804 Ford Focus Electric
  • B3804 Ford Freestar
  • B3804 Ford Freestyle
  • B3804 Ford Fusion
  • B3804 Ford Fusion Energi
  • B3804 Ford Fusion Hybrid
  • B3804 Ford Fusion Plug-In Hybrid
  • B3804 Ford GT
  • B3804 Ford Mustang
  • B3804 Ford Mustang Mach-E
  • B3804 Ford Mystique
  • B3804 Ford Probe
  • B3804 Ford Ranger
  • B3804 Ford Taurus
  • B3804 Ford Taurus X
  • B3804 Ford Tempo
  • B3804 Ford Thunderbird
  • B3804 Ford Transit
  • B3804 Ford Transit Connect
  • B3804 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.