P637B

P637B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P637B 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 FF.

The BHM drives the 5 cab overhead clearance and ID lamps from connector B5 pin C on circuit 46. All other marker and tail lamps are driven from BHM connector B1,K on circuit 23. This circuit connects to the CHM as an input at connector J3,P.

Ford P637B Fault Code Meaning :

Ford P637B Symptoms :

Ford P637B Reasons :

How To Fix Ford P637B Trouble Code ?

Which Ford cars have the code P637B?

  • P637B Ford Aerostar
  • P637B Ford Bronco
  • P637B Ford C-Max
  • P637B Ford C-Max Energi
  • P637B Ford C-Max Hybrid
  • P637B Ford Contour
  • P637B Ford Crown Victoria
  • P637B Ford EcoSport
  • P637B Ford Econoline
  • P637B Ford Edge
  • P637B Ford Escape
  • P637B Ford Escape Hybrid
  • P637B Ford Escort
  • P637B Ford Everest
  • P637B Ford Excursion
  • P637B Ford Expedition
  • P637B Ford Explorer
  • P637B Ford Explorer Sport Trac
  • P637B Ford F-150
  • P637B Ford F-250
  • P637B Ford F-350
  • P637B Ford Fiesta
  • P637B Ford Flex
  • P637B Ford Focus
  • P637B Ford Focus Electric
  • P637B Ford Freestar
  • P637B Ford Freestyle
  • P637B Ford Fusion
  • P637B Ford Fusion Energi
  • P637B Ford Fusion Hybrid
  • P637B Ford Fusion Plug-In Hybrid
  • P637B Ford GT
  • P637B Ford Mustang
  • P637B Ford Mustang Mach-E
  • P637B Ford Mystique
  • P637B Ford Probe
  • P637B Ford Ranger
  • P637B Ford Taurus
  • P637B Ford Taurus X
  • P637B Ford Tempo
  • P637B Ford Thunderbird
  • P637B Ford Transit
  • P637B Ford Transit Connect
  • P637B 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.