P3938

P3938 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3938 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 position information for the switch becomes Not Available. Remove the duplicate Smart Switch, then use ServiceLink to verify that the correct Smart Switches are configured for the vehicle.

Engine starting is disabled and other optional functions may be interrupted until the fault is corrected and the ignition switch is cycled.

Ford P3938 Fault Code Meaning :

Ford P3938 Symptoms :

Ford P3938 Reasons :

How To Fix Ford P3938 Trouble Code ?

Which Ford cars have the code P3938?

  • P3938 Ford Aerostar
  • P3938 Ford Bronco
  • P3938 Ford C-Max
  • P3938 Ford C-Max Energi
  • P3938 Ford C-Max Hybrid
  • P3938 Ford Contour
  • P3938 Ford Crown Victoria
  • P3938 Ford EcoSport
  • P3938 Ford Econoline
  • P3938 Ford Edge
  • P3938 Ford Escape
  • P3938 Ford Escape Hybrid
  • P3938 Ford Escort
  • P3938 Ford Everest
  • P3938 Ford Excursion
  • P3938 Ford Expedition
  • P3938 Ford Explorer
  • P3938 Ford Explorer Sport Trac
  • P3938 Ford F-150
  • P3938 Ford F-250
  • P3938 Ford F-350
  • P3938 Ford Fiesta
  • P3938 Ford Flex
  • P3938 Ford Focus
  • P3938 Ford Focus Electric
  • P3938 Ford Freestar
  • P3938 Ford Freestyle
  • P3938 Ford Fusion
  • P3938 Ford Fusion Energi
  • P3938 Ford Fusion Hybrid
  • P3938 Ford Fusion Plug-In Hybrid
  • P3938 Ford GT
  • P3938 Ford Mustang
  • P3938 Ford Mustang Mach-E
  • P3938 Ford Mystique
  • P3938 Ford Probe
  • P3938 Ford Ranger
  • P3938 Ford Taurus
  • P3938 Ford Taurus X
  • P3938 Ford Tempo
  • P3938 Ford Thunderbird
  • P3938 Ford Transit
  • P3938 Ford Transit Connect
  • P3938 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.