P791D

P791D Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P791D 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.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P791D Fault Code Meaning :

Ford P791D Symptoms :

Ford P791D Reasons :

How To Fix Ford P791D Trouble Code ?

Which Ford cars have the code P791D?

  • P791D Ford Aerostar
  • P791D Ford Bronco
  • P791D Ford C-Max
  • P791D Ford C-Max Energi
  • P791D Ford C-Max Hybrid
  • P791D Ford Contour
  • P791D Ford Crown Victoria
  • P791D Ford EcoSport
  • P791D Ford Econoline
  • P791D Ford Edge
  • P791D Ford Escape
  • P791D Ford Escape Hybrid
  • P791D Ford Escort
  • P791D Ford Everest
  • P791D Ford Excursion
  • P791D Ford Expedition
  • P791D Ford Explorer
  • P791D Ford Explorer Sport Trac
  • P791D Ford F-150
  • P791D Ford F-250
  • P791D Ford F-350
  • P791D Ford Fiesta
  • P791D Ford Flex
  • P791D Ford Focus
  • P791D Ford Focus Electric
  • P791D Ford Freestar
  • P791D Ford Freestyle
  • P791D Ford Fusion
  • P791D Ford Fusion Energi
  • P791D Ford Fusion Hybrid
  • P791D Ford Fusion Plug-In Hybrid
  • P791D Ford GT
  • P791D Ford Mustang
  • P791D Ford Mustang Mach-E
  • P791D Ford Mystique
  • P791D Ford Probe
  • P791D Ford Ranger
  • P791D Ford Taurus
  • P791D Ford Taurus X
  • P791D Ford Tempo
  • P791D Ford Thunderbird
  • P791D Ford Transit
  • P791D Ford Transit Connect
  • P791D 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.