P91D9

P91D9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P91D9 Diagnosis

The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.The ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.

Troubleshoot for a wiring short to ground fault on any of the CHM output or BHM output circuits discussed above. The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.

Ford P91D9 Fault Code Meaning :

Ford P91D9 Symptoms :

Ford P91D9 Reasons :

How To Fix Ford P91D9 Trouble Code ?

Which Ford cars have the code P91D9?

  • P91D9 Ford Aerostar
  • P91D9 Ford Bronco
  • P91D9 Ford C-Max
  • P91D9 Ford C-Max Energi
  • P91D9 Ford C-Max Hybrid
  • P91D9 Ford Contour
  • P91D9 Ford Crown Victoria
  • P91D9 Ford EcoSport
  • P91D9 Ford Econoline
  • P91D9 Ford Edge
  • P91D9 Ford Escape
  • P91D9 Ford Escape Hybrid
  • P91D9 Ford Escort
  • P91D9 Ford Everest
  • P91D9 Ford Excursion
  • P91D9 Ford Expedition
  • P91D9 Ford Explorer
  • P91D9 Ford Explorer Sport Trac
  • P91D9 Ford F-150
  • P91D9 Ford F-250
  • P91D9 Ford F-350
  • P91D9 Ford Fiesta
  • P91D9 Ford Flex
  • P91D9 Ford Focus
  • P91D9 Ford Focus Electric
  • P91D9 Ford Freestar
  • P91D9 Ford Freestyle
  • P91D9 Ford Fusion
  • P91D9 Ford Fusion Energi
  • P91D9 Ford Fusion Hybrid
  • P91D9 Ford Fusion Plug-In Hybrid
  • P91D9 Ford GT
  • P91D9 Ford Mustang
  • P91D9 Ford Mustang Mach-E
  • P91D9 Ford Mystique
  • P91D9 Ford Probe
  • P91D9 Ford Ranger
  • P91D9 Ford Taurus
  • P91D9 Ford Taurus X
  • P91D9 Ford Tempo
  • P91D9 Ford Thunderbird
  • P91D9 Ford Transit
  • P91D9 Ford Transit Connect
  • P91D9 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.