P91D8

P91D8 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P91D8 Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.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 P91D8 Fault Code Meaning :

Ford P91D8 Symptoms :

Ford P91D8 Reasons :

How To Fix Ford P91D8 Trouble Code ?

Which Ford cars have the code P91D8?

  • P91D8 Ford Aerostar
  • P91D8 Ford Bronco
  • P91D8 Ford C-Max
  • P91D8 Ford C-Max Energi
  • P91D8 Ford C-Max Hybrid
  • P91D8 Ford Contour
  • P91D8 Ford Crown Victoria
  • P91D8 Ford EcoSport
  • P91D8 Ford Econoline
  • P91D8 Ford Edge
  • P91D8 Ford Escape
  • P91D8 Ford Escape Hybrid
  • P91D8 Ford Escort
  • P91D8 Ford Everest
  • P91D8 Ford Excursion
  • P91D8 Ford Expedition
  • P91D8 Ford Explorer
  • P91D8 Ford Explorer Sport Trac
  • P91D8 Ford F-150
  • P91D8 Ford F-250
  • P91D8 Ford F-350
  • P91D8 Ford Fiesta
  • P91D8 Ford Flex
  • P91D8 Ford Focus
  • P91D8 Ford Focus Electric
  • P91D8 Ford Freestar
  • P91D8 Ford Freestyle
  • P91D8 Ford Fusion
  • P91D8 Ford Fusion Energi
  • P91D8 Ford Fusion Hybrid
  • P91D8 Ford Fusion Plug-In Hybrid
  • P91D8 Ford GT
  • P91D8 Ford Mustang
  • P91D8 Ford Mustang Mach-E
  • P91D8 Ford Mystique
  • P91D8 Ford Probe
  • P91D8 Ford Ranger
  • P91D8 Ford Taurus
  • P91D8 Ford Taurus X
  • P91D8 Ford Tempo
  • P91D8 Ford Thunderbird
  • P91D8 Ford Transit
  • P91D8 Ford Transit Connect
  • P91D8 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.