C0621
C0621 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.C0621 Diagnosis
The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.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 C0621 Fault Code Meaning :
Ford C0621 Symptoms :
Ford C0621 Reasons :
How To Fix Ford C0621 Trouble Code ?
Which Ford cars have the code C0621?
- C0621 Ford Aerostar
- C0621 Ford Bronco
- C0621 Ford C-Max
- C0621 Ford C-Max Energi
- C0621 Ford C-Max Hybrid
- C0621 Ford Contour
- C0621 Ford Crown Victoria
- C0621 Ford EcoSport
- C0621 Ford Econoline
- C0621 Ford Edge
- C0621 Ford Escape
- C0621 Ford Escape Hybrid
- C0621 Ford Escort
- C0621 Ford Everest
- C0621 Ford Excursion
- C0621 Ford Expedition
- C0621 Ford Explorer
- C0621 Ford Explorer Sport Trac
- C0621 Ford F-150
- C0621 Ford F-250
- C0621 Ford F-350
- C0621 Ford Fiesta
- C0621 Ford Flex
- C0621 Ford Focus
- C0621 Ford Focus Electric
- C0621 Ford Freestar
- C0621 Ford Freestyle
- C0621 Ford Fusion
- C0621 Ford Fusion Energi
- C0621 Ford Fusion Hybrid
- C0621 Ford Fusion Plug-In Hybrid
- C0621 Ford GT
- C0621 Ford Mustang
- C0621 Ford Mustang Mach-E
- C0621 Ford Mystique
- C0621 Ford Probe
- C0621 Ford Ranger
- C0621 Ford Taurus
- C0621 Ford Taurus X
- C0621 Ford Tempo
- C0621 Ford Thunderbird
- C0621 Ford Transit
- C0621 Ford Transit Connect
- C0621 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.