P4D91

P4D91 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P4D91 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford P4D91 Fault Code Meaning :

Ford P4D91 Symptoms :

Ford P4D91 Reasons :

How To Fix Ford P4D91 Trouble Code ?

Which Ford cars have the code P4D91?

  • P4D91 Ford Aerostar
  • P4D91 Ford Bronco
  • P4D91 Ford C-Max
  • P4D91 Ford C-Max Energi
  • P4D91 Ford C-Max Hybrid
  • P4D91 Ford Contour
  • P4D91 Ford Crown Victoria
  • P4D91 Ford EcoSport
  • P4D91 Ford Econoline
  • P4D91 Ford Edge
  • P4D91 Ford Escape
  • P4D91 Ford Escape Hybrid
  • P4D91 Ford Escort
  • P4D91 Ford Everest
  • P4D91 Ford Excursion
  • P4D91 Ford Expedition
  • P4D91 Ford Explorer
  • P4D91 Ford Explorer Sport Trac
  • P4D91 Ford F-150
  • P4D91 Ford F-250
  • P4D91 Ford F-350
  • P4D91 Ford Fiesta
  • P4D91 Ford Flex
  • P4D91 Ford Focus
  • P4D91 Ford Focus Electric
  • P4D91 Ford Freestar
  • P4D91 Ford Freestyle
  • P4D91 Ford Fusion
  • P4D91 Ford Fusion Energi
  • P4D91 Ford Fusion Hybrid
  • P4D91 Ford Fusion Plug-In Hybrid
  • P4D91 Ford GT
  • P4D91 Ford Mustang
  • P4D91 Ford Mustang Mach-E
  • P4D91 Ford Mystique
  • P4D91 Ford Probe
  • P4D91 Ford Ranger
  • P4D91 Ford Taurus
  • P4D91 Ford Taurus X
  • P4D91 Ford Tempo
  • P4D91 Ford Thunderbird
  • P4D91 Ford Transit
  • P4D91 Ford Transit Connect
  • P4D91 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.