P91B8

P91B8 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P91B8 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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.

The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.

Ford P91B8 Fault Code Meaning :

Ford P91B8 Symptoms :

Ford P91B8 Reasons :

How To Fix Ford P91B8 Trouble Code ?

Which Ford cars have the code P91B8?

  • P91B8 Ford Aerostar
  • P91B8 Ford Bronco
  • P91B8 Ford C-Max
  • P91B8 Ford C-Max Energi
  • P91B8 Ford C-Max Hybrid
  • P91B8 Ford Contour
  • P91B8 Ford Crown Victoria
  • P91B8 Ford EcoSport
  • P91B8 Ford Econoline
  • P91B8 Ford Edge
  • P91B8 Ford Escape
  • P91B8 Ford Escape Hybrid
  • P91B8 Ford Escort
  • P91B8 Ford Everest
  • P91B8 Ford Excursion
  • P91B8 Ford Expedition
  • P91B8 Ford Explorer
  • P91B8 Ford Explorer Sport Trac
  • P91B8 Ford F-150
  • P91B8 Ford F-250
  • P91B8 Ford F-350
  • P91B8 Ford Fiesta
  • P91B8 Ford Flex
  • P91B8 Ford Focus
  • P91B8 Ford Focus Electric
  • P91B8 Ford Freestar
  • P91B8 Ford Freestyle
  • P91B8 Ford Fusion
  • P91B8 Ford Fusion Energi
  • P91B8 Ford Fusion Hybrid
  • P91B8 Ford Fusion Plug-In Hybrid
  • P91B8 Ford GT
  • P91B8 Ford Mustang
  • P91B8 Ford Mustang Mach-E
  • P91B8 Ford Mystique
  • P91B8 Ford Probe
  • P91B8 Ford Ranger
  • P91B8 Ford Taurus
  • P91B8 Ford Taurus X
  • P91B8 Ford Tempo
  • P91B8 Ford Thunderbird
  • P91B8 Ford Transit
  • P91B8 Ford Transit Connect
  • P91B8 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.