P0203

P0203 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0203 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.

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 P0203 Fault Code Meaning :

Ford P0203 Symptoms :

Ford P0203 Reasons :

How To Fix Ford P0203 Trouble Code ?

Which Ford cars have the code P0203?

  • P0203 Ford Aerostar
  • P0203 Ford Bronco
  • P0203 Ford C-Max
  • P0203 Ford C-Max Energi
  • P0203 Ford C-Max Hybrid
  • P0203 Ford Contour
  • P0203 Ford Crown Victoria
  • P0203 Ford EcoSport
  • P0203 Ford Econoline
  • P0203 Ford Edge
  • P0203 Ford Escape
  • P0203 Ford Escape Hybrid
  • P0203 Ford Escort
  • P0203 Ford Everest
  • P0203 Ford Excursion
  • P0203 Ford Expedition
  • P0203 Ford Explorer
  • P0203 Ford Explorer Sport Trac
  • P0203 Ford F-150
  • P0203 Ford F-250
  • P0203 Ford F-350
  • P0203 Ford Fiesta
  • P0203 Ford Flex
  • P0203 Ford Focus
  • P0203 Ford Focus Electric
  • P0203 Ford Freestar
  • P0203 Ford Freestyle
  • P0203 Ford Fusion
  • P0203 Ford Fusion Energi
  • P0203 Ford Fusion Hybrid
  • P0203 Ford Fusion Plug-In Hybrid
  • P0203 Ford GT
  • P0203 Ford Mustang
  • P0203 Ford Mustang Mach-E
  • P0203 Ford Mystique
  • P0203 Ford Probe
  • P0203 Ford Ranger
  • P0203 Ford Taurus
  • P0203 Ford Taurus X
  • P0203 Ford Tempo
  • P0203 Ford Thunderbird
  • P0203 Ford Transit
  • P0203 Ford Transit Connect
  • P0203 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.