B12A4

B12A4 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B12A4 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 B12A4 Fault Code Meaning :

Ford B12A4 Symptoms :

Ford B12A4 Reasons :

How To Fix Ford B12A4 Trouble Code ?

Which Ford cars have the code B12A4?

  • B12A4 Ford Aerostar
  • B12A4 Ford Bronco
  • B12A4 Ford C-Max
  • B12A4 Ford C-Max Energi
  • B12A4 Ford C-Max Hybrid
  • B12A4 Ford Contour
  • B12A4 Ford Crown Victoria
  • B12A4 Ford EcoSport
  • B12A4 Ford Econoline
  • B12A4 Ford Edge
  • B12A4 Ford Escape
  • B12A4 Ford Escape Hybrid
  • B12A4 Ford Escort
  • B12A4 Ford Everest
  • B12A4 Ford Excursion
  • B12A4 Ford Expedition
  • B12A4 Ford Explorer
  • B12A4 Ford Explorer Sport Trac
  • B12A4 Ford F-150
  • B12A4 Ford F-250
  • B12A4 Ford F-350
  • B12A4 Ford Fiesta
  • B12A4 Ford Flex
  • B12A4 Ford Focus
  • B12A4 Ford Focus Electric
  • B12A4 Ford Freestar
  • B12A4 Ford Freestyle
  • B12A4 Ford Fusion
  • B12A4 Ford Fusion Energi
  • B12A4 Ford Fusion Hybrid
  • B12A4 Ford Fusion Plug-In Hybrid
  • B12A4 Ford GT
  • B12A4 Ford Mustang
  • B12A4 Ford Mustang Mach-E
  • B12A4 Ford Mystique
  • B12A4 Ford Probe
  • B12A4 Ford Ranger
  • B12A4 Ford Taurus
  • B12A4 Ford Taurus X
  • B12A4 Ford Tempo
  • B12A4 Ford Thunderbird
  • B12A4 Ford Transit
  • B12A4 Ford Transit Connect
  • B12A4 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.