P643B

P643B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P643B Diagnosis

The CHM does not suupport PWM type DRLs. The vehicle has a BHM mismatch with the CHM. Replace the CHM with one that is compatible with the BHM.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 P643B Fault Code Meaning :

Ford P643B Symptoms :

Ford P643B Reasons :

How To Fix Ford P643B Trouble Code ?

Which Ford cars have the code P643B?

  • P643B Ford Aerostar
  • P643B Ford Bronco
  • P643B Ford C-Max
  • P643B Ford C-Max Energi
  • P643B Ford C-Max Hybrid
  • P643B Ford Contour
  • P643B Ford Crown Victoria
  • P643B Ford EcoSport
  • P643B Ford Econoline
  • P643B Ford Edge
  • P643B Ford Escape
  • P643B Ford Escape Hybrid
  • P643B Ford Escort
  • P643B Ford Everest
  • P643B Ford Excursion
  • P643B Ford Expedition
  • P643B Ford Explorer
  • P643B Ford Explorer Sport Trac
  • P643B Ford F-150
  • P643B Ford F-250
  • P643B Ford F-350
  • P643B Ford Fiesta
  • P643B Ford Flex
  • P643B Ford Focus
  • P643B Ford Focus Electric
  • P643B Ford Freestar
  • P643B Ford Freestyle
  • P643B Ford Fusion
  • P643B Ford Fusion Energi
  • P643B Ford Fusion Hybrid
  • P643B Ford Fusion Plug-In Hybrid
  • P643B Ford GT
  • P643B Ford Mustang
  • P643B Ford Mustang Mach-E
  • P643B Ford Mystique
  • P643B Ford Probe
  • P643B Ford Ranger
  • P643B Ford Taurus
  • P643B Ford Taurus X
  • P643B Ford Tempo
  • P643B Ford Thunderbird
  • P643B Ford Transit
  • P643B Ford Transit Connect
  • P643B 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.