P0B21
P0B21 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P0B21 Diagnosis
The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open 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 OFF.
The top-of-clutch switch and bottom-of-clutch switch are both measured as closed at the same time. Troubleshoot for clutch switch shorted, or for a wiring fault between the clutch switch and the BHM.
Ford P0B21 Fault Code Meaning :
Ford P0B21 Symptoms :
Ford P0B21 Reasons :
How To Fix Ford P0B21 Trouble Code ?
Which Ford cars have the code P0B21?
- P0B21 Ford Aerostar
- P0B21 Ford Bronco
- P0B21 Ford C-Max
- P0B21 Ford C-Max Energi
- P0B21 Ford C-Max Hybrid
- P0B21 Ford Contour
- P0B21 Ford Crown Victoria
- P0B21 Ford EcoSport
- P0B21 Ford Econoline
- P0B21 Ford Edge
- P0B21 Ford Escape
- P0B21 Ford Escape Hybrid
- P0B21 Ford Escort
- P0B21 Ford Everest
- P0B21 Ford Excursion
- P0B21 Ford Expedition
- P0B21 Ford Explorer
- P0B21 Ford Explorer Sport Trac
- P0B21 Ford F-150
- P0B21 Ford F-250
- P0B21 Ford F-350
- P0B21 Ford Fiesta
- P0B21 Ford Flex
- P0B21 Ford Focus
- P0B21 Ford Focus Electric
- P0B21 Ford Freestar
- P0B21 Ford Freestyle
- P0B21 Ford Fusion
- P0B21 Ford Fusion Energi
- P0B21 Ford Fusion Hybrid
- P0B21 Ford Fusion Plug-In Hybrid
- P0B21 Ford GT
- P0B21 Ford Mustang
- P0B21 Ford Mustang Mach-E
- P0B21 Ford Mystique
- P0B21 Ford Probe
- P0B21 Ford Ranger
- P0B21 Ford Taurus
- P0B21 Ford Taurus X
- P0B21 Ford Tempo
- P0B21 Ford Thunderbird
- P0B21 Ford Transit
- P0B21 Ford Transit Connect
- P0B21 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.