U3621

U3621 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3621 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 BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford U3621 Fault Code Meaning :

Ford U3621 Symptoms :

Ford U3621 Reasons :

How To Fix Ford U3621 Trouble Code ?

Which Ford cars have the code U3621?

  • U3621 Ford Aerostar
  • U3621 Ford Bronco
  • U3621 Ford C-Max
  • U3621 Ford C-Max Energi
  • U3621 Ford C-Max Hybrid
  • U3621 Ford Contour
  • U3621 Ford Crown Victoria
  • U3621 Ford EcoSport
  • U3621 Ford Econoline
  • U3621 Ford Edge
  • U3621 Ford Escape
  • U3621 Ford Escape Hybrid
  • U3621 Ford Escort
  • U3621 Ford Everest
  • U3621 Ford Excursion
  • U3621 Ford Expedition
  • U3621 Ford Explorer
  • U3621 Ford Explorer Sport Trac
  • U3621 Ford F-150
  • U3621 Ford F-250
  • U3621 Ford F-350
  • U3621 Ford Fiesta
  • U3621 Ford Flex
  • U3621 Ford Focus
  • U3621 Ford Focus Electric
  • U3621 Ford Freestar
  • U3621 Ford Freestyle
  • U3621 Ford Fusion
  • U3621 Ford Fusion Energi
  • U3621 Ford Fusion Hybrid
  • U3621 Ford Fusion Plug-In Hybrid
  • U3621 Ford GT
  • U3621 Ford Mustang
  • U3621 Ford Mustang Mach-E
  • U3621 Ford Mystique
  • U3621 Ford Probe
  • U3621 Ford Ranger
  • U3621 Ford Taurus
  • U3621 Ford Taurus X
  • U3621 Ford Tempo
  • U3621 Ford Thunderbird
  • U3621 Ford Transit
  • U3621 Ford Transit Connect
  • U3621 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.