U1378

U1378 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U1378 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.

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 U1378 Fault Code Meaning :

Ford U1378 Symptoms :

Ford U1378 Reasons :

How To Fix Ford U1378 Trouble Code ?

Which Ford cars have the code U1378?

  • U1378 Ford Aerostar
  • U1378 Ford Bronco
  • U1378 Ford C-Max
  • U1378 Ford C-Max Energi
  • U1378 Ford C-Max Hybrid
  • U1378 Ford Contour
  • U1378 Ford Crown Victoria
  • U1378 Ford EcoSport
  • U1378 Ford Econoline
  • U1378 Ford Edge
  • U1378 Ford Escape
  • U1378 Ford Escape Hybrid
  • U1378 Ford Escort
  • U1378 Ford Everest
  • U1378 Ford Excursion
  • U1378 Ford Expedition
  • U1378 Ford Explorer
  • U1378 Ford Explorer Sport Trac
  • U1378 Ford F-150
  • U1378 Ford F-250
  • U1378 Ford F-350
  • U1378 Ford Fiesta
  • U1378 Ford Flex
  • U1378 Ford Focus
  • U1378 Ford Focus Electric
  • U1378 Ford Freestar
  • U1378 Ford Freestyle
  • U1378 Ford Fusion
  • U1378 Ford Fusion Energi
  • U1378 Ford Fusion Hybrid
  • U1378 Ford Fusion Plug-In Hybrid
  • U1378 Ford GT
  • U1378 Ford Mustang
  • U1378 Ford Mustang Mach-E
  • U1378 Ford Mystique
  • U1378 Ford Probe
  • U1378 Ford Ranger
  • U1378 Ford Taurus
  • U1378 Ford Taurus X
  • U1378 Ford Tempo
  • U1378 Ford Thunderbird
  • U1378 Ford Transit
  • U1378 Ford Transit Connect
  • U1378 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.