U0503

U0503 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U0503 Diagnosis

The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 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.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford U0503 Fault Code Meaning :

Ford U0503 Symptoms :

Ford U0503 Reasons :

How To Fix Ford U0503 Trouble Code ?

Which Ford cars have the code U0503?

  • U0503 Ford Aerostar
  • U0503 Ford Bronco
  • U0503 Ford C-Max
  • U0503 Ford C-Max Energi
  • U0503 Ford C-Max Hybrid
  • U0503 Ford Contour
  • U0503 Ford Crown Victoria
  • U0503 Ford EcoSport
  • U0503 Ford Econoline
  • U0503 Ford Edge
  • U0503 Ford Escape
  • U0503 Ford Escape Hybrid
  • U0503 Ford Escort
  • U0503 Ford Everest
  • U0503 Ford Excursion
  • U0503 Ford Expedition
  • U0503 Ford Explorer
  • U0503 Ford Explorer Sport Trac
  • U0503 Ford F-150
  • U0503 Ford F-250
  • U0503 Ford F-350
  • U0503 Ford Fiesta
  • U0503 Ford Flex
  • U0503 Ford Focus
  • U0503 Ford Focus Electric
  • U0503 Ford Freestar
  • U0503 Ford Freestyle
  • U0503 Ford Fusion
  • U0503 Ford Fusion Energi
  • U0503 Ford Fusion Hybrid
  • U0503 Ford Fusion Plug-In Hybrid
  • U0503 Ford GT
  • U0503 Ford Mustang
  • U0503 Ford Mustang Mach-E
  • U0503 Ford Mystique
  • U0503 Ford Probe
  • U0503 Ford Ranger
  • U0503 Ford Taurus
  • U0503 Ford Taurus X
  • U0503 Ford Tempo
  • U0503 Ford Thunderbird
  • U0503 Ford Transit
  • U0503 Ford Transit Connect
  • U0503 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.