P3873

P3873 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3873 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open 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.

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 P3873 Fault Code Meaning :

Ford P3873 Symptoms :

Ford P3873 Reasons :

How To Fix Ford P3873 Trouble Code ?

Which Ford cars have the code P3873?

  • P3873 Ford Aerostar
  • P3873 Ford Bronco
  • P3873 Ford C-Max
  • P3873 Ford C-Max Energi
  • P3873 Ford C-Max Hybrid
  • P3873 Ford Contour
  • P3873 Ford Crown Victoria
  • P3873 Ford EcoSport
  • P3873 Ford Econoline
  • P3873 Ford Edge
  • P3873 Ford Escape
  • P3873 Ford Escape Hybrid
  • P3873 Ford Escort
  • P3873 Ford Everest
  • P3873 Ford Excursion
  • P3873 Ford Expedition
  • P3873 Ford Explorer
  • P3873 Ford Explorer Sport Trac
  • P3873 Ford F-150
  • P3873 Ford F-250
  • P3873 Ford F-350
  • P3873 Ford Fiesta
  • P3873 Ford Flex
  • P3873 Ford Focus
  • P3873 Ford Focus Electric
  • P3873 Ford Freestar
  • P3873 Ford Freestyle
  • P3873 Ford Fusion
  • P3873 Ford Fusion Energi
  • P3873 Ford Fusion Hybrid
  • P3873 Ford Fusion Plug-In Hybrid
  • P3873 Ford GT
  • P3873 Ford Mustang
  • P3873 Ford Mustang Mach-E
  • P3873 Ford Mystique
  • P3873 Ford Probe
  • P3873 Ford Ranger
  • P3873 Ford Taurus
  • P3873 Ford Taurus X
  • P3873 Ford Tempo
  • P3873 Ford Thunderbird
  • P3873 Ford Transit
  • P3873 Ford Transit Connect
  • P3873 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.