P0A91

P0A91 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0A91 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P0A91 Fault Code Meaning :

Ford P0A91 Symptoms :

Ford P0A91 Reasons :

How To Fix Ford P0A91 Trouble Code ?

Which Ford cars have the code P0A91?

  • P0A91 Ford Aerostar
  • P0A91 Ford Bronco
  • P0A91 Ford C-Max
  • P0A91 Ford C-Max Energi
  • P0A91 Ford C-Max Hybrid
  • P0A91 Ford Contour
  • P0A91 Ford Crown Victoria
  • P0A91 Ford EcoSport
  • P0A91 Ford Econoline
  • P0A91 Ford Edge
  • P0A91 Ford Escape
  • P0A91 Ford Escape Hybrid
  • P0A91 Ford Escort
  • P0A91 Ford Everest
  • P0A91 Ford Excursion
  • P0A91 Ford Expedition
  • P0A91 Ford Explorer
  • P0A91 Ford Explorer Sport Trac
  • P0A91 Ford F-150
  • P0A91 Ford F-250
  • P0A91 Ford F-350
  • P0A91 Ford Fiesta
  • P0A91 Ford Flex
  • P0A91 Ford Focus
  • P0A91 Ford Focus Electric
  • P0A91 Ford Freestar
  • P0A91 Ford Freestyle
  • P0A91 Ford Fusion
  • P0A91 Ford Fusion Energi
  • P0A91 Ford Fusion Hybrid
  • P0A91 Ford Fusion Plug-In Hybrid
  • P0A91 Ford GT
  • P0A91 Ford Mustang
  • P0A91 Ford Mustang Mach-E
  • P0A91 Ford Mystique
  • P0A91 Ford Probe
  • P0A91 Ford Ranger
  • P0A91 Ford Taurus
  • P0A91 Ford Taurus X
  • P0A91 Ford Tempo
  • P0A91 Ford Thunderbird
  • P0A91 Ford Transit
  • P0A91 Ford Transit Connect
  • P0A91 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.