B0903

B0903 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B0903 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.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 B0903 Fault Code Meaning :

Ford B0903 Symptoms :

Ford B0903 Reasons :

How To Fix Ford B0903 Trouble Code ?

Which Ford cars have the code B0903?

  • B0903 Ford Aerostar
  • B0903 Ford Bronco
  • B0903 Ford C-Max
  • B0903 Ford C-Max Energi
  • B0903 Ford C-Max Hybrid
  • B0903 Ford Contour
  • B0903 Ford Crown Victoria
  • B0903 Ford EcoSport
  • B0903 Ford Econoline
  • B0903 Ford Edge
  • B0903 Ford Escape
  • B0903 Ford Escape Hybrid
  • B0903 Ford Escort
  • B0903 Ford Everest
  • B0903 Ford Excursion
  • B0903 Ford Expedition
  • B0903 Ford Explorer
  • B0903 Ford Explorer Sport Trac
  • B0903 Ford F-150
  • B0903 Ford F-250
  • B0903 Ford F-350
  • B0903 Ford Fiesta
  • B0903 Ford Flex
  • B0903 Ford Focus
  • B0903 Ford Focus Electric
  • B0903 Ford Freestar
  • B0903 Ford Freestyle
  • B0903 Ford Fusion
  • B0903 Ford Fusion Energi
  • B0903 Ford Fusion Hybrid
  • B0903 Ford Fusion Plug-In Hybrid
  • B0903 Ford GT
  • B0903 Ford Mustang
  • B0903 Ford Mustang Mach-E
  • B0903 Ford Mystique
  • B0903 Ford Probe
  • B0903 Ford Ranger
  • B0903 Ford Taurus
  • B0903 Ford Taurus X
  • B0903 Ford Tempo
  • B0903 Ford Thunderbird
  • B0903 Ford Transit
  • B0903 Ford Transit Connect
  • B0903 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.