B0643
B0643 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.B0643 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 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 B0643 Fault Code Meaning :
Ford B0643 Symptoms :
Ford B0643 Reasons :
How To Fix Ford B0643 Trouble Code ?
Which Ford cars have the code B0643?
- B0643 Ford Aerostar
- B0643 Ford Bronco
- B0643 Ford C-Max
- B0643 Ford C-Max Energi
- B0643 Ford C-Max Hybrid
- B0643 Ford Contour
- B0643 Ford Crown Victoria
- B0643 Ford EcoSport
- B0643 Ford Econoline
- B0643 Ford Edge
- B0643 Ford Escape
- B0643 Ford Escape Hybrid
- B0643 Ford Escort
- B0643 Ford Everest
- B0643 Ford Excursion
- B0643 Ford Expedition
- B0643 Ford Explorer
- B0643 Ford Explorer Sport Trac
- B0643 Ford F-150
- B0643 Ford F-250
- B0643 Ford F-350
- B0643 Ford Fiesta
- B0643 Ford Flex
- B0643 Ford Focus
- B0643 Ford Focus Electric
- B0643 Ford Freestar
- B0643 Ford Freestyle
- B0643 Ford Fusion
- B0643 Ford Fusion Energi
- B0643 Ford Fusion Hybrid
- B0643 Ford Fusion Plug-In Hybrid
- B0643 Ford GT
- B0643 Ford Mustang
- B0643 Ford Mustang Mach-E
- B0643 Ford Mystique
- B0643 Ford Probe
- B0643 Ford Ranger
- B0643 Ford Taurus
- B0643 Ford Taurus X
- B0643 Ford Tempo
- B0643 Ford Thunderbird
- B0643 Ford Transit
- B0643 Ford Transit Connect
- B0643 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.