P91C1

P91C1 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P91C1 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.The position information for the switch becomes Not Available. Remove the duplicate Smart Switch, then use ServiceLink to verify that the correct Smart Switches are configured for the vehicle.

A comparison of pressures from all sensors is made. The smallest difference between the three is determined and a reference pressure is calculated. The Barometric pressure sensor value is compared to the reference value and if the difference is above the threshold a DTC is reported.

Ford P91C1 Fault Code Meaning :

Ford P91C1 Symptoms :

Ford P91C1 Reasons :

How To Fix Ford P91C1 Trouble Code ?

Which Ford cars have the code P91C1?

  • P91C1 Ford Aerostar
  • P91C1 Ford Bronco
  • P91C1 Ford C-Max
  • P91C1 Ford C-Max Energi
  • P91C1 Ford C-Max Hybrid
  • P91C1 Ford Contour
  • P91C1 Ford Crown Victoria
  • P91C1 Ford EcoSport
  • P91C1 Ford Econoline
  • P91C1 Ford Edge
  • P91C1 Ford Escape
  • P91C1 Ford Escape Hybrid
  • P91C1 Ford Escort
  • P91C1 Ford Everest
  • P91C1 Ford Excursion
  • P91C1 Ford Expedition
  • P91C1 Ford Explorer
  • P91C1 Ford Explorer Sport Trac
  • P91C1 Ford F-150
  • P91C1 Ford F-250
  • P91C1 Ford F-350
  • P91C1 Ford Fiesta
  • P91C1 Ford Flex
  • P91C1 Ford Focus
  • P91C1 Ford Focus Electric
  • P91C1 Ford Freestar
  • P91C1 Ford Freestyle
  • P91C1 Ford Fusion
  • P91C1 Ford Fusion Energi
  • P91C1 Ford Fusion Hybrid
  • P91C1 Ford Fusion Plug-In Hybrid
  • P91C1 Ford GT
  • P91C1 Ford Mustang
  • P91C1 Ford Mustang Mach-E
  • P91C1 Ford Mystique
  • P91C1 Ford Probe
  • P91C1 Ford Ranger
  • P91C1 Ford Taurus
  • P91C1 Ford Taurus X
  • P91C1 Ford Tempo
  • P91C1 Ford Thunderbird
  • P91C1 Ford Transit
  • P91C1 Ford Transit Connect
  • P91C1 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.