P0789

P0789 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0789 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 P0789 Fault Code Meaning :

Ford P0789 Symptoms :

Ford P0789 Reasons :

How To Fix Ford P0789 Trouble Code ?

Which Ford cars have the code P0789?

  • P0789 Ford Aerostar
  • P0789 Ford Bronco
  • P0789 Ford C-Max
  • P0789 Ford C-Max Energi
  • P0789 Ford C-Max Hybrid
  • P0789 Ford Contour
  • P0789 Ford Crown Victoria
  • P0789 Ford EcoSport
  • P0789 Ford Econoline
  • P0789 Ford Edge
  • P0789 Ford Escape
  • P0789 Ford Escape Hybrid
  • P0789 Ford Escort
  • P0789 Ford Everest
  • P0789 Ford Excursion
  • P0789 Ford Expedition
  • P0789 Ford Explorer
  • P0789 Ford Explorer Sport Trac
  • P0789 Ford F-150
  • P0789 Ford F-250
  • P0789 Ford F-350
  • P0789 Ford Fiesta
  • P0789 Ford Flex
  • P0789 Ford Focus
  • P0789 Ford Focus Electric
  • P0789 Ford Freestar
  • P0789 Ford Freestyle
  • P0789 Ford Fusion
  • P0789 Ford Fusion Energi
  • P0789 Ford Fusion Hybrid
  • P0789 Ford Fusion Plug-In Hybrid
  • P0789 Ford GT
  • P0789 Ford Mustang
  • P0789 Ford Mustang Mach-E
  • P0789 Ford Mystique
  • P0789 Ford Probe
  • P0789 Ford Ranger
  • P0789 Ford Taurus
  • P0789 Ford Taurus X
  • P0789 Ford Tempo
  • P0789 Ford Thunderbird
  • P0789 Ford Transit
  • P0789 Ford Transit Connect
  • P0789 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.