B1721

B1721 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B1721 Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.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.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford B1721 Fault Code Meaning :

Ford B1721 Symptoms :

Ford B1721 Reasons :

How To Fix Ford B1721 Trouble Code ?

Which Ford cars have the code B1721?

  • B1721 Ford Aerostar
  • B1721 Ford Bronco
  • B1721 Ford C-Max
  • B1721 Ford C-Max Energi
  • B1721 Ford C-Max Hybrid
  • B1721 Ford Contour
  • B1721 Ford Crown Victoria
  • B1721 Ford EcoSport
  • B1721 Ford Econoline
  • B1721 Ford Edge
  • B1721 Ford Escape
  • B1721 Ford Escape Hybrid
  • B1721 Ford Escort
  • B1721 Ford Everest
  • B1721 Ford Excursion
  • B1721 Ford Expedition
  • B1721 Ford Explorer
  • B1721 Ford Explorer Sport Trac
  • B1721 Ford F-150
  • B1721 Ford F-250
  • B1721 Ford F-350
  • B1721 Ford Fiesta
  • B1721 Ford Flex
  • B1721 Ford Focus
  • B1721 Ford Focus Electric
  • B1721 Ford Freestar
  • B1721 Ford Freestyle
  • B1721 Ford Fusion
  • B1721 Ford Fusion Energi
  • B1721 Ford Fusion Hybrid
  • B1721 Ford Fusion Plug-In Hybrid
  • B1721 Ford GT
  • B1721 Ford Mustang
  • B1721 Ford Mustang Mach-E
  • B1721 Ford Mystique
  • B1721 Ford Probe
  • B1721 Ford Ranger
  • B1721 Ford Taurus
  • B1721 Ford Taurus X
  • B1721 Ford Tempo
  • B1721 Ford Thunderbird
  • B1721 Ford Transit
  • B1721 Ford Transit Connect
  • B1721 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.