B1851

B1851 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B1851 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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 B1851 Fault Code Meaning :

Ford B1851 Symptoms :

Ford B1851 Reasons :

How To Fix Ford B1851 Trouble Code ?

Which Ford cars have the code B1851?

  • B1851 Ford Aerostar
  • B1851 Ford Bronco
  • B1851 Ford C-Max
  • B1851 Ford C-Max Energi
  • B1851 Ford C-Max Hybrid
  • B1851 Ford Contour
  • B1851 Ford Crown Victoria
  • B1851 Ford EcoSport
  • B1851 Ford Econoline
  • B1851 Ford Edge
  • B1851 Ford Escape
  • B1851 Ford Escape Hybrid
  • B1851 Ford Escort
  • B1851 Ford Everest
  • B1851 Ford Excursion
  • B1851 Ford Expedition
  • B1851 Ford Explorer
  • B1851 Ford Explorer Sport Trac
  • B1851 Ford F-150
  • B1851 Ford F-250
  • B1851 Ford F-350
  • B1851 Ford Fiesta
  • B1851 Ford Flex
  • B1851 Ford Focus
  • B1851 Ford Focus Electric
  • B1851 Ford Freestar
  • B1851 Ford Freestyle
  • B1851 Ford Fusion
  • B1851 Ford Fusion Energi
  • B1851 Ford Fusion Hybrid
  • B1851 Ford Fusion Plug-In Hybrid
  • B1851 Ford GT
  • B1851 Ford Mustang
  • B1851 Ford Mustang Mach-E
  • B1851 Ford Mystique
  • B1851 Ford Probe
  • B1851 Ford Ranger
  • B1851 Ford Taurus
  • B1851 Ford Taurus X
  • B1851 Ford Tempo
  • B1851 Ford Thunderbird
  • B1851 Ford Transit
  • B1851 Ford Transit Connect
  • B1851 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.