P1F91

P1F91 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1F91 Diagnosis

The CHM does not suupport PWM type DRLs. The vehicle has a BHM mismatch with the CHM. Replace the CHM with one that is compatible with the BHM.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 P1F91 Fault Code Meaning :

Ford P1F91 Symptoms :

Ford P1F91 Reasons :

How To Fix Ford P1F91 Trouble Code ?

Which Ford cars have the code P1F91?

  • P1F91 Ford Aerostar
  • P1F91 Ford Bronco
  • P1F91 Ford C-Max
  • P1F91 Ford C-Max Energi
  • P1F91 Ford C-Max Hybrid
  • P1F91 Ford Contour
  • P1F91 Ford Crown Victoria
  • P1F91 Ford EcoSport
  • P1F91 Ford Econoline
  • P1F91 Ford Edge
  • P1F91 Ford Escape
  • P1F91 Ford Escape Hybrid
  • P1F91 Ford Escort
  • P1F91 Ford Everest
  • P1F91 Ford Excursion
  • P1F91 Ford Expedition
  • P1F91 Ford Explorer
  • P1F91 Ford Explorer Sport Trac
  • P1F91 Ford F-150
  • P1F91 Ford F-250
  • P1F91 Ford F-350
  • P1F91 Ford Fiesta
  • P1F91 Ford Flex
  • P1F91 Ford Focus
  • P1F91 Ford Focus Electric
  • P1F91 Ford Freestar
  • P1F91 Ford Freestyle
  • P1F91 Ford Fusion
  • P1F91 Ford Fusion Energi
  • P1F91 Ford Fusion Hybrid
  • P1F91 Ford Fusion Plug-In Hybrid
  • P1F91 Ford GT
  • P1F91 Ford Mustang
  • P1F91 Ford Mustang Mach-E
  • P1F91 Ford Mystique
  • P1F91 Ford Probe
  • P1F91 Ford Ranger
  • P1F91 Ford Taurus
  • P1F91 Ford Taurus X
  • P1F91 Ford Tempo
  • P1F91 Ford Thunderbird
  • P1F91 Ford Transit
  • P1F91 Ford Transit Connect
  • P1F91 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.