B0203

B0203 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B0203 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 B0203 Fault Code Meaning :

Ford B0203 Symptoms :

Ford B0203 Reasons :

How To Fix Ford B0203 Trouble Code ?

Which Ford cars have the code B0203?

  • B0203 Ford Aerostar
  • B0203 Ford Bronco
  • B0203 Ford C-Max
  • B0203 Ford C-Max Energi
  • B0203 Ford C-Max Hybrid
  • B0203 Ford Contour
  • B0203 Ford Crown Victoria
  • B0203 Ford EcoSport
  • B0203 Ford Econoline
  • B0203 Ford Edge
  • B0203 Ford Escape
  • B0203 Ford Escape Hybrid
  • B0203 Ford Escort
  • B0203 Ford Everest
  • B0203 Ford Excursion
  • B0203 Ford Expedition
  • B0203 Ford Explorer
  • B0203 Ford Explorer Sport Trac
  • B0203 Ford F-150
  • B0203 Ford F-250
  • B0203 Ford F-350
  • B0203 Ford Fiesta
  • B0203 Ford Flex
  • B0203 Ford Focus
  • B0203 Ford Focus Electric
  • B0203 Ford Freestar
  • B0203 Ford Freestyle
  • B0203 Ford Fusion
  • B0203 Ford Fusion Energi
  • B0203 Ford Fusion Hybrid
  • B0203 Ford Fusion Plug-In Hybrid
  • B0203 Ford GT
  • B0203 Ford Mustang
  • B0203 Ford Mustang Mach-E
  • B0203 Ford Mystique
  • B0203 Ford Probe
  • B0203 Ford Ranger
  • B0203 Ford Taurus
  • B0203 Ford Taurus X
  • B0203 Ford Tempo
  • B0203 Ford Thunderbird
  • B0203 Ford Transit
  • B0203 Ford Transit Connect
  • B0203 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.