B1821
B1821 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.B1821 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 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 B1821 Fault Code Meaning :
Ford B1821 Symptoms :
Ford B1821 Reasons :
How To Fix Ford B1821 Trouble Code ?
Which Ford cars have the code B1821?
- B1821 Ford Aerostar
- B1821 Ford Bronco
- B1821 Ford C-Max
- B1821 Ford C-Max Energi
- B1821 Ford C-Max Hybrid
- B1821 Ford Contour
- B1821 Ford Crown Victoria
- B1821 Ford EcoSport
- B1821 Ford Econoline
- B1821 Ford Edge
- B1821 Ford Escape
- B1821 Ford Escape Hybrid
- B1821 Ford Escort
- B1821 Ford Everest
- B1821 Ford Excursion
- B1821 Ford Expedition
- B1821 Ford Explorer
- B1821 Ford Explorer Sport Trac
- B1821 Ford F-150
- B1821 Ford F-250
- B1821 Ford F-350
- B1821 Ford Fiesta
- B1821 Ford Flex
- B1821 Ford Focus
- B1821 Ford Focus Electric
- B1821 Ford Freestar
- B1821 Ford Freestyle
- B1821 Ford Fusion
- B1821 Ford Fusion Energi
- B1821 Ford Fusion Hybrid
- B1821 Ford Fusion Plug-In Hybrid
- B1821 Ford GT
- B1821 Ford Mustang
- B1821 Ford Mustang Mach-E
- B1821 Ford Mystique
- B1821 Ford Probe
- B1821 Ford Ranger
- B1821 Ford Taurus
- B1821 Ford Taurus X
- B1821 Ford Tempo
- B1821 Ford Thunderbird
- B1821 Ford Transit
- B1821 Ford Transit Connect
- B1821 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.