B3789

B3789 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3789 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.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 B3789 Fault Code Meaning :

Ford B3789 Symptoms :

Ford B3789 Reasons :

How To Fix Ford B3789 Trouble Code ?

Which Ford cars have the code B3789?

  • B3789 Ford Aerostar
  • B3789 Ford Bronco
  • B3789 Ford C-Max
  • B3789 Ford C-Max Energi
  • B3789 Ford C-Max Hybrid
  • B3789 Ford Contour
  • B3789 Ford Crown Victoria
  • B3789 Ford EcoSport
  • B3789 Ford Econoline
  • B3789 Ford Edge
  • B3789 Ford Escape
  • B3789 Ford Escape Hybrid
  • B3789 Ford Escort
  • B3789 Ford Everest
  • B3789 Ford Excursion
  • B3789 Ford Expedition
  • B3789 Ford Explorer
  • B3789 Ford Explorer Sport Trac
  • B3789 Ford F-150
  • B3789 Ford F-250
  • B3789 Ford F-350
  • B3789 Ford Fiesta
  • B3789 Ford Flex
  • B3789 Ford Focus
  • B3789 Ford Focus Electric
  • B3789 Ford Freestar
  • B3789 Ford Freestyle
  • B3789 Ford Fusion
  • B3789 Ford Fusion Energi
  • B3789 Ford Fusion Hybrid
  • B3789 Ford Fusion Plug-In Hybrid
  • B3789 Ford GT
  • B3789 Ford Mustang
  • B3789 Ford Mustang Mach-E
  • B3789 Ford Mystique
  • B3789 Ford Probe
  • B3789 Ford Ranger
  • B3789 Ford Taurus
  • B3789 Ford Taurus X
  • B3789 Ford Tempo
  • B3789 Ford Thunderbird
  • B3789 Ford Transit
  • B3789 Ford Transit Connect
  • B3789 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.