P1F21
P1F21 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P1F21 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 P1F21 Fault Code Meaning :
Ford P1F21 Symptoms :
Ford P1F21 Reasons :
How To Fix Ford P1F21 Trouble Code ?
Which Ford cars have the code P1F21?
- P1F21 Ford Aerostar
- P1F21 Ford Bronco
- P1F21 Ford C-Max
- P1F21 Ford C-Max Energi
- P1F21 Ford C-Max Hybrid
- P1F21 Ford Contour
- P1F21 Ford Crown Victoria
- P1F21 Ford EcoSport
- P1F21 Ford Econoline
- P1F21 Ford Edge
- P1F21 Ford Escape
- P1F21 Ford Escape Hybrid
- P1F21 Ford Escort
- P1F21 Ford Everest
- P1F21 Ford Excursion
- P1F21 Ford Expedition
- P1F21 Ford Explorer
- P1F21 Ford Explorer Sport Trac
- P1F21 Ford F-150
- P1F21 Ford F-250
- P1F21 Ford F-350
- P1F21 Ford Fiesta
- P1F21 Ford Flex
- P1F21 Ford Focus
- P1F21 Ford Focus Electric
- P1F21 Ford Freestar
- P1F21 Ford Freestyle
- P1F21 Ford Fusion
- P1F21 Ford Fusion Energi
- P1F21 Ford Fusion Hybrid
- P1F21 Ford Fusion Plug-In Hybrid
- P1F21 Ford GT
- P1F21 Ford Mustang
- P1F21 Ford Mustang Mach-E
- P1F21 Ford Mystique
- P1F21 Ford Probe
- P1F21 Ford Ranger
- P1F21 Ford Taurus
- P1F21 Ford Taurus X
- P1F21 Ford Tempo
- P1F21 Ford Thunderbird
- P1F21 Ford Transit
- P1F21 Ford Transit Connect
- P1F21 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.