P0990

P0990 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0990 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.

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 P0990 Fault Code Meaning :

Ford P0990 Symptoms :

Ford P0990 Reasons :

How To Fix Ford P0990 Trouble Code ?

Which Ford cars have the code P0990?

  • P0990 Ford Aerostar
  • P0990 Ford Bronco
  • P0990 Ford C-Max
  • P0990 Ford C-Max Energi
  • P0990 Ford C-Max Hybrid
  • P0990 Ford Contour
  • P0990 Ford Crown Victoria
  • P0990 Ford EcoSport
  • P0990 Ford Econoline
  • P0990 Ford Edge
  • P0990 Ford Escape
  • P0990 Ford Escape Hybrid
  • P0990 Ford Escort
  • P0990 Ford Everest
  • P0990 Ford Excursion
  • P0990 Ford Expedition
  • P0990 Ford Explorer
  • P0990 Ford Explorer Sport Trac
  • P0990 Ford F-150
  • P0990 Ford F-250
  • P0990 Ford F-350
  • P0990 Ford Fiesta
  • P0990 Ford Flex
  • P0990 Ford Focus
  • P0990 Ford Focus Electric
  • P0990 Ford Freestar
  • P0990 Ford Freestyle
  • P0990 Ford Fusion
  • P0990 Ford Fusion Energi
  • P0990 Ford Fusion Hybrid
  • P0990 Ford Fusion Plug-In Hybrid
  • P0990 Ford GT
  • P0990 Ford Mustang
  • P0990 Ford Mustang Mach-E
  • P0990 Ford Mystique
  • P0990 Ford Probe
  • P0990 Ford Ranger
  • P0990 Ford Taurus
  • P0990 Ford Taurus X
  • P0990 Ford Tempo
  • P0990 Ford Thunderbird
  • P0990 Ford Transit
  • P0990 Ford Transit Connect
  • P0990 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.