P3872

P3872 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3872 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 is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The BHM drives the 5 cab overhead clearance and ID lamps from connector B5 pin C on circuit 46. All other marker and tail lamps are driven from BHM connector B1,K on circuit 23. This circuit connects to the CHM as an input at connector J3,P.

Ford P3872 Fault Code Meaning :

Ford P3872 Symptoms :

Ford P3872 Reasons :

How To Fix Ford P3872 Trouble Code ?

Which Ford cars have the code P3872?

  • P3872 Ford Aerostar
  • P3872 Ford Bronco
  • P3872 Ford C-Max
  • P3872 Ford C-Max Energi
  • P3872 Ford C-Max Hybrid
  • P3872 Ford Contour
  • P3872 Ford Crown Victoria
  • P3872 Ford EcoSport
  • P3872 Ford Econoline
  • P3872 Ford Edge
  • P3872 Ford Escape
  • P3872 Ford Escape Hybrid
  • P3872 Ford Escort
  • P3872 Ford Everest
  • P3872 Ford Excursion
  • P3872 Ford Expedition
  • P3872 Ford Explorer
  • P3872 Ford Explorer Sport Trac
  • P3872 Ford F-150
  • P3872 Ford F-250
  • P3872 Ford F-350
  • P3872 Ford Fiesta
  • P3872 Ford Flex
  • P3872 Ford Focus
  • P3872 Ford Focus Electric
  • P3872 Ford Freestar
  • P3872 Ford Freestyle
  • P3872 Ford Fusion
  • P3872 Ford Fusion Energi
  • P3872 Ford Fusion Hybrid
  • P3872 Ford Fusion Plug-In Hybrid
  • P3872 Ford GT
  • P3872 Ford Mustang
  • P3872 Ford Mustang Mach-E
  • P3872 Ford Mystique
  • P3872 Ford Probe
  • P3872 Ford Ranger
  • P3872 Ford Taurus
  • P3872 Ford Taurus X
  • P3872 Ford Tempo
  • P3872 Ford Thunderbird
  • P3872 Ford Transit
  • P3872 Ford Transit Connect
  • P3872 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.