P3178

P3178 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3178 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 P3178 Fault Code Meaning :

Ford P3178 Symptoms :

Ford P3178 Reasons :

How To Fix Ford P3178 Trouble Code ?

Which Ford cars have the code P3178?

  • P3178 Ford Aerostar
  • P3178 Ford Bronco
  • P3178 Ford C-Max
  • P3178 Ford C-Max Energi
  • P3178 Ford C-Max Hybrid
  • P3178 Ford Contour
  • P3178 Ford Crown Victoria
  • P3178 Ford EcoSport
  • P3178 Ford Econoline
  • P3178 Ford Edge
  • P3178 Ford Escape
  • P3178 Ford Escape Hybrid
  • P3178 Ford Escort
  • P3178 Ford Everest
  • P3178 Ford Excursion
  • P3178 Ford Expedition
  • P3178 Ford Explorer
  • P3178 Ford Explorer Sport Trac
  • P3178 Ford F-150
  • P3178 Ford F-250
  • P3178 Ford F-350
  • P3178 Ford Fiesta
  • P3178 Ford Flex
  • P3178 Ford Focus
  • P3178 Ford Focus Electric
  • P3178 Ford Freestar
  • P3178 Ford Freestyle
  • P3178 Ford Fusion
  • P3178 Ford Fusion Energi
  • P3178 Ford Fusion Hybrid
  • P3178 Ford Fusion Plug-In Hybrid
  • P3178 Ford GT
  • P3178 Ford Mustang
  • P3178 Ford Mustang Mach-E
  • P3178 Ford Mystique
  • P3178 Ford Probe
  • P3178 Ford Ranger
  • P3178 Ford Taurus
  • P3178 Ford Taurus X
  • P3178 Ford Tempo
  • P3178 Ford Thunderbird
  • P3178 Ford Transit
  • P3178 Ford Transit Connect
  • P3178 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.