B0904

B0904 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B0904 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.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.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford B0904 Fault Code Meaning :

Ford B0904 Symptoms :

Ford B0904 Reasons :

How To Fix Ford B0904 Trouble Code ?

Which Ford cars have the code B0904?

  • B0904 Ford Aerostar
  • B0904 Ford Bronco
  • B0904 Ford C-Max
  • B0904 Ford C-Max Energi
  • B0904 Ford C-Max Hybrid
  • B0904 Ford Contour
  • B0904 Ford Crown Victoria
  • B0904 Ford EcoSport
  • B0904 Ford Econoline
  • B0904 Ford Edge
  • B0904 Ford Escape
  • B0904 Ford Escape Hybrid
  • B0904 Ford Escort
  • B0904 Ford Everest
  • B0904 Ford Excursion
  • B0904 Ford Expedition
  • B0904 Ford Explorer
  • B0904 Ford Explorer Sport Trac
  • B0904 Ford F-150
  • B0904 Ford F-250
  • B0904 Ford F-350
  • B0904 Ford Fiesta
  • B0904 Ford Flex
  • B0904 Ford Focus
  • B0904 Ford Focus Electric
  • B0904 Ford Freestar
  • B0904 Ford Freestyle
  • B0904 Ford Fusion
  • B0904 Ford Fusion Energi
  • B0904 Ford Fusion Hybrid
  • B0904 Ford Fusion Plug-In Hybrid
  • B0904 Ford GT
  • B0904 Ford Mustang
  • B0904 Ford Mustang Mach-E
  • B0904 Ford Mystique
  • B0904 Ford Probe
  • B0904 Ford Ranger
  • B0904 Ford Taurus
  • B0904 Ford Taurus X
  • B0904 Ford Tempo
  • B0904 Ford Thunderbird
  • B0904 Ford Transit
  • B0904 Ford Transit Connect
  • B0904 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.