U3221

U3221 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3221 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 U3221 Fault Code Meaning :

Ford U3221 Symptoms :

Ford U3221 Reasons :

How To Fix Ford U3221 Trouble Code ?

Which Ford cars have the code U3221?

  • U3221 Ford Aerostar
  • U3221 Ford Bronco
  • U3221 Ford C-Max
  • U3221 Ford C-Max Energi
  • U3221 Ford C-Max Hybrid
  • U3221 Ford Contour
  • U3221 Ford Crown Victoria
  • U3221 Ford EcoSport
  • U3221 Ford Econoline
  • U3221 Ford Edge
  • U3221 Ford Escape
  • U3221 Ford Escape Hybrid
  • U3221 Ford Escort
  • U3221 Ford Everest
  • U3221 Ford Excursion
  • U3221 Ford Expedition
  • U3221 Ford Explorer
  • U3221 Ford Explorer Sport Trac
  • U3221 Ford F-150
  • U3221 Ford F-250
  • U3221 Ford F-350
  • U3221 Ford Fiesta
  • U3221 Ford Flex
  • U3221 Ford Focus
  • U3221 Ford Focus Electric
  • U3221 Ford Freestar
  • U3221 Ford Freestyle
  • U3221 Ford Fusion
  • U3221 Ford Fusion Energi
  • U3221 Ford Fusion Hybrid
  • U3221 Ford Fusion Plug-In Hybrid
  • U3221 Ford GT
  • U3221 Ford Mustang
  • U3221 Ford Mustang Mach-E
  • U3221 Ford Mystique
  • U3221 Ford Probe
  • U3221 Ford Ranger
  • U3221 Ford Taurus
  • U3221 Ford Taurus X
  • U3221 Ford Tempo
  • U3221 Ford Thunderbird
  • U3221 Ford Transit
  • U3221 Ford Transit Connect
  • U3221 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.