B1543

B1543 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B1543 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 B1543 Fault Code Meaning :

Ford B1543 Symptoms :

Ford B1543 Reasons :

How To Fix Ford B1543 Trouble Code ?

Which Ford cars have the code B1543?

  • B1543 Ford Aerostar
  • B1543 Ford Bronco
  • B1543 Ford C-Max
  • B1543 Ford C-Max Energi
  • B1543 Ford C-Max Hybrid
  • B1543 Ford Contour
  • B1543 Ford Crown Victoria
  • B1543 Ford EcoSport
  • B1543 Ford Econoline
  • B1543 Ford Edge
  • B1543 Ford Escape
  • B1543 Ford Escape Hybrid
  • B1543 Ford Escort
  • B1543 Ford Everest
  • B1543 Ford Excursion
  • B1543 Ford Expedition
  • B1543 Ford Explorer
  • B1543 Ford Explorer Sport Trac
  • B1543 Ford F-150
  • B1543 Ford F-250
  • B1543 Ford F-350
  • B1543 Ford Fiesta
  • B1543 Ford Flex
  • B1543 Ford Focus
  • B1543 Ford Focus Electric
  • B1543 Ford Freestar
  • B1543 Ford Freestyle
  • B1543 Ford Fusion
  • B1543 Ford Fusion Energi
  • B1543 Ford Fusion Hybrid
  • B1543 Ford Fusion Plug-In Hybrid
  • B1543 Ford GT
  • B1543 Ford Mustang
  • B1543 Ford Mustang Mach-E
  • B1543 Ford Mystique
  • B1543 Ford Probe
  • B1543 Ford Ranger
  • B1543 Ford Taurus
  • B1543 Ford Taurus X
  • B1543 Ford Tempo
  • B1543 Ford Thunderbird
  • B1543 Ford Transit
  • B1543 Ford Transit Connect
  • B1543 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.