P0F91

P0F91 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0F91 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.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 P0F91 Fault Code Meaning :

Ford P0F91 Symptoms :

Ford P0F91 Reasons :

How To Fix Ford P0F91 Trouble Code ?

Which Ford cars have the code P0F91?

  • P0F91 Ford Aerostar
  • P0F91 Ford Bronco
  • P0F91 Ford C-Max
  • P0F91 Ford C-Max Energi
  • P0F91 Ford C-Max Hybrid
  • P0F91 Ford Contour
  • P0F91 Ford Crown Victoria
  • P0F91 Ford EcoSport
  • P0F91 Ford Econoline
  • P0F91 Ford Edge
  • P0F91 Ford Escape
  • P0F91 Ford Escape Hybrid
  • P0F91 Ford Escort
  • P0F91 Ford Everest
  • P0F91 Ford Excursion
  • P0F91 Ford Expedition
  • P0F91 Ford Explorer
  • P0F91 Ford Explorer Sport Trac
  • P0F91 Ford F-150
  • P0F91 Ford F-250
  • P0F91 Ford F-350
  • P0F91 Ford Fiesta
  • P0F91 Ford Flex
  • P0F91 Ford Focus
  • P0F91 Ford Focus Electric
  • P0F91 Ford Freestar
  • P0F91 Ford Freestyle
  • P0F91 Ford Fusion
  • P0F91 Ford Fusion Energi
  • P0F91 Ford Fusion Hybrid
  • P0F91 Ford Fusion Plug-In Hybrid
  • P0F91 Ford GT
  • P0F91 Ford Mustang
  • P0F91 Ford Mustang Mach-E
  • P0F91 Ford Mystique
  • P0F91 Ford Probe
  • P0F91 Ford Ranger
  • P0F91 Ford Taurus
  • P0F91 Ford Taurus X
  • P0F91 Ford Tempo
  • P0F91 Ford Thunderbird
  • P0F91 Ford Transit
  • P0F91 Ford Transit Connect
  • P0F91 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.