P646B

P646B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P646B 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 ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.

The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.

Ford P646B Fault Code Meaning :

Ford P646B Symptoms :

Ford P646B Reasons :

How To Fix Ford P646B Trouble Code ?

Which Ford cars have the code P646B?

  • P646B Ford Aerostar
  • P646B Ford Bronco
  • P646B Ford C-Max
  • P646B Ford C-Max Energi
  • P646B Ford C-Max Hybrid
  • P646B Ford Contour
  • P646B Ford Crown Victoria
  • P646B Ford EcoSport
  • P646B Ford Econoline
  • P646B Ford Edge
  • P646B Ford Escape
  • P646B Ford Escape Hybrid
  • P646B Ford Escort
  • P646B Ford Everest
  • P646B Ford Excursion
  • P646B Ford Expedition
  • P646B Ford Explorer
  • P646B Ford Explorer Sport Trac
  • P646B Ford F-150
  • P646B Ford F-250
  • P646B Ford F-350
  • P646B Ford Fiesta
  • P646B Ford Flex
  • P646B Ford Focus
  • P646B Ford Focus Electric
  • P646B Ford Freestar
  • P646B Ford Freestyle
  • P646B Ford Fusion
  • P646B Ford Fusion Energi
  • P646B Ford Fusion Hybrid
  • P646B Ford Fusion Plug-In Hybrid
  • P646B Ford GT
  • P646B Ford Mustang
  • P646B Ford Mustang Mach-E
  • P646B Ford Mystique
  • P646B Ford Probe
  • P646B Ford Ranger
  • P646B Ford Taurus
  • P646B Ford Taurus X
  • P646B Ford Tempo
  • P646B Ford Thunderbird
  • P646B Ford Transit
  • P646B Ford Transit Connect
  • P646B 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.