P1778

P1778 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1778 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 P1778 Fault Code Meaning :

Ford P1778 Symptoms :

Ford P1778 Reasons :

How To Fix Ford P1778 Trouble Code ?

Which Ford cars have the code P1778?

  • P1778 Ford Aerostar
  • P1778 Ford Bronco
  • P1778 Ford C-Max
  • P1778 Ford C-Max Energi
  • P1778 Ford C-Max Hybrid
  • P1778 Ford Contour
  • P1778 Ford Crown Victoria
  • P1778 Ford EcoSport
  • P1778 Ford Econoline
  • P1778 Ford Edge
  • P1778 Ford Escape
  • P1778 Ford Escape Hybrid
  • P1778 Ford Escort
  • P1778 Ford Everest
  • P1778 Ford Excursion
  • P1778 Ford Expedition
  • P1778 Ford Explorer
  • P1778 Ford Explorer Sport Trac
  • P1778 Ford F-150
  • P1778 Ford F-250
  • P1778 Ford F-350
  • P1778 Ford Fiesta
  • P1778 Ford Flex
  • P1778 Ford Focus
  • P1778 Ford Focus Electric
  • P1778 Ford Freestar
  • P1778 Ford Freestyle
  • P1778 Ford Fusion
  • P1778 Ford Fusion Energi
  • P1778 Ford Fusion Hybrid
  • P1778 Ford Fusion Plug-In Hybrid
  • P1778 Ford GT
  • P1778 Ford Mustang
  • P1778 Ford Mustang Mach-E
  • P1778 Ford Mystique
  • P1778 Ford Probe
  • P1778 Ford Ranger
  • P1778 Ford Taurus
  • P1778 Ford Taurus X
  • P1778 Ford Tempo
  • P1778 Ford Thunderbird
  • P1778 Ford Transit
  • P1778 Ford Transit Connect
  • P1778 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.