P390B

P390B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P390B 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.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.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford P390B Fault Code Meaning :

Ford P390B Symptoms :

Ford P390B Reasons :

How To Fix Ford P390B Trouble Code ?

Which Ford cars have the code P390B?

  • P390B Ford Aerostar
  • P390B Ford Bronco
  • P390B Ford C-Max
  • P390B Ford C-Max Energi
  • P390B Ford C-Max Hybrid
  • P390B Ford Contour
  • P390B Ford Crown Victoria
  • P390B Ford EcoSport
  • P390B Ford Econoline
  • P390B Ford Edge
  • P390B Ford Escape
  • P390B Ford Escape Hybrid
  • P390B Ford Escort
  • P390B Ford Everest
  • P390B Ford Excursion
  • P390B Ford Expedition
  • P390B Ford Explorer
  • P390B Ford Explorer Sport Trac
  • P390B Ford F-150
  • P390B Ford F-250
  • P390B Ford F-350
  • P390B Ford Fiesta
  • P390B Ford Flex
  • P390B Ford Focus
  • P390B Ford Focus Electric
  • P390B Ford Freestar
  • P390B Ford Freestyle
  • P390B Ford Fusion
  • P390B Ford Fusion Energi
  • P390B Ford Fusion Hybrid
  • P390B Ford Fusion Plug-In Hybrid
  • P390B Ford GT
  • P390B Ford Mustang
  • P390B Ford Mustang Mach-E
  • P390B Ford Mystique
  • P390B Ford Probe
  • P390B Ford Ranger
  • P390B Ford Taurus
  • P390B Ford Taurus X
  • P390B Ford Tempo
  • P390B Ford Thunderbird
  • P390B Ford Transit
  • P390B Ford Transit Connect
  • P390B 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.