P1903

P1903 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1903 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.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 P1903 Fault Code Meaning :

Ford P1903 Symptoms :

Ford P1903 Reasons :

How To Fix Ford P1903 Trouble Code ?

Which Ford cars have the code P1903?

  • P1903 Ford Aerostar
  • P1903 Ford Bronco
  • P1903 Ford C-Max
  • P1903 Ford C-Max Energi
  • P1903 Ford C-Max Hybrid
  • P1903 Ford Contour
  • P1903 Ford Crown Victoria
  • P1903 Ford EcoSport
  • P1903 Ford Econoline
  • P1903 Ford Edge
  • P1903 Ford Escape
  • P1903 Ford Escape Hybrid
  • P1903 Ford Escort
  • P1903 Ford Everest
  • P1903 Ford Excursion
  • P1903 Ford Expedition
  • P1903 Ford Explorer
  • P1903 Ford Explorer Sport Trac
  • P1903 Ford F-150
  • P1903 Ford F-250
  • P1903 Ford F-350
  • P1903 Ford Fiesta
  • P1903 Ford Flex
  • P1903 Ford Focus
  • P1903 Ford Focus Electric
  • P1903 Ford Freestar
  • P1903 Ford Freestyle
  • P1903 Ford Fusion
  • P1903 Ford Fusion Energi
  • P1903 Ford Fusion Hybrid
  • P1903 Ford Fusion Plug-In Hybrid
  • P1903 Ford GT
  • P1903 Ford Mustang
  • P1903 Ford Mustang Mach-E
  • P1903 Ford Mystique
  • P1903 Ford Probe
  • P1903 Ford Ranger
  • P1903 Ford Taurus
  • P1903 Ford Taurus X
  • P1903 Ford Tempo
  • P1903 Ford Thunderbird
  • P1903 Ford Transit
  • P1903 Ford Transit Connect
  • P1903 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.