P1543

P1543 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1543 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.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 P1543 Fault Code Meaning :

Ford P1543 Symptoms :

Ford P1543 Reasons :

How To Fix Ford P1543 Trouble Code ?

Which Ford cars have the code P1543?

  • P1543 Ford Aerostar
  • P1543 Ford Bronco
  • P1543 Ford C-Max
  • P1543 Ford C-Max Energi
  • P1543 Ford C-Max Hybrid
  • P1543 Ford Contour
  • P1543 Ford Crown Victoria
  • P1543 Ford EcoSport
  • P1543 Ford Econoline
  • P1543 Ford Edge
  • P1543 Ford Escape
  • P1543 Ford Escape Hybrid
  • P1543 Ford Escort
  • P1543 Ford Everest
  • P1543 Ford Excursion
  • P1543 Ford Expedition
  • P1543 Ford Explorer
  • P1543 Ford Explorer Sport Trac
  • P1543 Ford F-150
  • P1543 Ford F-250
  • P1543 Ford F-350
  • P1543 Ford Fiesta
  • P1543 Ford Flex
  • P1543 Ford Focus
  • P1543 Ford Focus Electric
  • P1543 Ford Freestar
  • P1543 Ford Freestyle
  • P1543 Ford Fusion
  • P1543 Ford Fusion Energi
  • P1543 Ford Fusion Hybrid
  • P1543 Ford Fusion Plug-In Hybrid
  • P1543 Ford GT
  • P1543 Ford Mustang
  • P1543 Ford Mustang Mach-E
  • P1543 Ford Mystique
  • P1543 Ford Probe
  • P1543 Ford Ranger
  • P1543 Ford Taurus
  • P1543 Ford Taurus X
  • P1543 Ford Tempo
  • P1543 Ford Thunderbird
  • P1543 Ford Transit
  • P1543 Ford Transit Connect
  • P1543 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.