P0543

P0543 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0543 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 2 air solenoid fault, and for air pressure switch short circuit fault.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P0543 Fault Code Meaning :

Ford P0543 Symptoms :

Ford P0543 Reasons :

How To Fix Ford P0543 Trouble Code ?

Which Ford cars have the code P0543?

  • P0543 Ford Aerostar
  • P0543 Ford Bronco
  • P0543 Ford C-Max
  • P0543 Ford C-Max Energi
  • P0543 Ford C-Max Hybrid
  • P0543 Ford Contour
  • P0543 Ford Crown Victoria
  • P0543 Ford EcoSport
  • P0543 Ford Econoline
  • P0543 Ford Edge
  • P0543 Ford Escape
  • P0543 Ford Escape Hybrid
  • P0543 Ford Escort
  • P0543 Ford Everest
  • P0543 Ford Excursion
  • P0543 Ford Expedition
  • P0543 Ford Explorer
  • P0543 Ford Explorer Sport Trac
  • P0543 Ford F-150
  • P0543 Ford F-250
  • P0543 Ford F-350
  • P0543 Ford Fiesta
  • P0543 Ford Flex
  • P0543 Ford Focus
  • P0543 Ford Focus Electric
  • P0543 Ford Freestar
  • P0543 Ford Freestyle
  • P0543 Ford Fusion
  • P0543 Ford Fusion Energi
  • P0543 Ford Fusion Hybrid
  • P0543 Ford Fusion Plug-In Hybrid
  • P0543 Ford GT
  • P0543 Ford Mustang
  • P0543 Ford Mustang Mach-E
  • P0543 Ford Mystique
  • P0543 Ford Probe
  • P0543 Ford Ranger
  • P0543 Ford Taurus
  • P0543 Ford Taurus X
  • P0543 Ford Tempo
  • P0543 Ford Thunderbird
  • P0543 Ford Transit
  • P0543 Ford Transit Connect
  • P0543 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.