P3B91

P3B91 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3B91 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 P3B91 Fault Code Meaning :

Ford P3B91 Symptoms :

Ford P3B91 Reasons :

How To Fix Ford P3B91 Trouble Code ?

Which Ford cars have the code P3B91?

  • P3B91 Ford Aerostar
  • P3B91 Ford Bronco
  • P3B91 Ford C-Max
  • P3B91 Ford C-Max Energi
  • P3B91 Ford C-Max Hybrid
  • P3B91 Ford Contour
  • P3B91 Ford Crown Victoria
  • P3B91 Ford EcoSport
  • P3B91 Ford Econoline
  • P3B91 Ford Edge
  • P3B91 Ford Escape
  • P3B91 Ford Escape Hybrid
  • P3B91 Ford Escort
  • P3B91 Ford Everest
  • P3B91 Ford Excursion
  • P3B91 Ford Expedition
  • P3B91 Ford Explorer
  • P3B91 Ford Explorer Sport Trac
  • P3B91 Ford F-150
  • P3B91 Ford F-250
  • P3B91 Ford F-350
  • P3B91 Ford Fiesta
  • P3B91 Ford Flex
  • P3B91 Ford Focus
  • P3B91 Ford Focus Electric
  • P3B91 Ford Freestar
  • P3B91 Ford Freestyle
  • P3B91 Ford Fusion
  • P3B91 Ford Fusion Energi
  • P3B91 Ford Fusion Hybrid
  • P3B91 Ford Fusion Plug-In Hybrid
  • P3B91 Ford GT
  • P3B91 Ford Mustang
  • P3B91 Ford Mustang Mach-E
  • P3B91 Ford Mystique
  • P3B91 Ford Probe
  • P3B91 Ford Ranger
  • P3B91 Ford Taurus
  • P3B91 Ford Taurus X
  • P3B91 Ford Tempo
  • P3B91 Ford Thunderbird
  • P3B91 Ford Transit
  • P3B91 Ford Transit Connect
  • P3B91 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.