P3C91

P3C91 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3C91 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 P3C91 Fault Code Meaning :

Ford P3C91 Symptoms :

Ford P3C91 Reasons :

How To Fix Ford P3C91 Trouble Code ?

Which Ford cars have the code P3C91?

  • P3C91 Ford Aerostar
  • P3C91 Ford Bronco
  • P3C91 Ford C-Max
  • P3C91 Ford C-Max Energi
  • P3C91 Ford C-Max Hybrid
  • P3C91 Ford Contour
  • P3C91 Ford Crown Victoria
  • P3C91 Ford EcoSport
  • P3C91 Ford Econoline
  • P3C91 Ford Edge
  • P3C91 Ford Escape
  • P3C91 Ford Escape Hybrid
  • P3C91 Ford Escort
  • P3C91 Ford Everest
  • P3C91 Ford Excursion
  • P3C91 Ford Expedition
  • P3C91 Ford Explorer
  • P3C91 Ford Explorer Sport Trac
  • P3C91 Ford F-150
  • P3C91 Ford F-250
  • P3C91 Ford F-350
  • P3C91 Ford Fiesta
  • P3C91 Ford Flex
  • P3C91 Ford Focus
  • P3C91 Ford Focus Electric
  • P3C91 Ford Freestar
  • P3C91 Ford Freestyle
  • P3C91 Ford Fusion
  • P3C91 Ford Fusion Energi
  • P3C91 Ford Fusion Hybrid
  • P3C91 Ford Fusion Plug-In Hybrid
  • P3C91 Ford GT
  • P3C91 Ford Mustang
  • P3C91 Ford Mustang Mach-E
  • P3C91 Ford Mystique
  • P3C91 Ford Probe
  • P3C91 Ford Ranger
  • P3C91 Ford Taurus
  • P3C91 Ford Taurus X
  • P3C91 Ford Tempo
  • P3C91 Ford Thunderbird
  • P3C91 Ford Transit
  • P3C91 Ford Transit Connect
  • P3C91 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.