C3621

C3621 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3621 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 2 air solenoid fault, and for air pressure switch short 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.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford C3621 Fault Code Meaning :

Ford C3621 Symptoms :

Ford C3621 Reasons :

How To Fix Ford C3621 Trouble Code ?

Which Ford cars have the code C3621?

  • C3621 Ford Aerostar
  • C3621 Ford Bronco
  • C3621 Ford C-Max
  • C3621 Ford C-Max Energi
  • C3621 Ford C-Max Hybrid
  • C3621 Ford Contour
  • C3621 Ford Crown Victoria
  • C3621 Ford EcoSport
  • C3621 Ford Econoline
  • C3621 Ford Edge
  • C3621 Ford Escape
  • C3621 Ford Escape Hybrid
  • C3621 Ford Escort
  • C3621 Ford Everest
  • C3621 Ford Excursion
  • C3621 Ford Expedition
  • C3621 Ford Explorer
  • C3621 Ford Explorer Sport Trac
  • C3621 Ford F-150
  • C3621 Ford F-250
  • C3621 Ford F-350
  • C3621 Ford Fiesta
  • C3621 Ford Flex
  • C3621 Ford Focus
  • C3621 Ford Focus Electric
  • C3621 Ford Freestar
  • C3621 Ford Freestyle
  • C3621 Ford Fusion
  • C3621 Ford Fusion Energi
  • C3621 Ford Fusion Hybrid
  • C3621 Ford Fusion Plug-In Hybrid
  • C3621 Ford GT
  • C3621 Ford Mustang
  • C3621 Ford Mustang Mach-E
  • C3621 Ford Mystique
  • C3621 Ford Probe
  • C3621 Ford Ranger
  • C3621 Ford Taurus
  • C3621 Ford Taurus X
  • C3621 Ford Tempo
  • C3621 Ford Thunderbird
  • C3621 Ford Transit
  • C3621 Ford Transit Connect
  • C3621 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.