C3937

C3937 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3937 Diagnosis

The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short 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 C3937 Fault Code Meaning :

Ford C3937 Symptoms :

Ford C3937 Reasons :

How To Fix Ford C3937 Trouble Code ?

Which Ford cars have the code C3937?

  • C3937 Ford Aerostar
  • C3937 Ford Bronco
  • C3937 Ford C-Max
  • C3937 Ford C-Max Energi
  • C3937 Ford C-Max Hybrid
  • C3937 Ford Contour
  • C3937 Ford Crown Victoria
  • C3937 Ford EcoSport
  • C3937 Ford Econoline
  • C3937 Ford Edge
  • C3937 Ford Escape
  • C3937 Ford Escape Hybrid
  • C3937 Ford Escort
  • C3937 Ford Everest
  • C3937 Ford Excursion
  • C3937 Ford Expedition
  • C3937 Ford Explorer
  • C3937 Ford Explorer Sport Trac
  • C3937 Ford F-150
  • C3937 Ford F-250
  • C3937 Ford F-350
  • C3937 Ford Fiesta
  • C3937 Ford Flex
  • C3937 Ford Focus
  • C3937 Ford Focus Electric
  • C3937 Ford Freestar
  • C3937 Ford Freestyle
  • C3937 Ford Fusion
  • C3937 Ford Fusion Energi
  • C3937 Ford Fusion Hybrid
  • C3937 Ford Fusion Plug-In Hybrid
  • C3937 Ford GT
  • C3937 Ford Mustang
  • C3937 Ford Mustang Mach-E
  • C3937 Ford Mystique
  • C3937 Ford Probe
  • C3937 Ford Ranger
  • C3937 Ford Taurus
  • C3937 Ford Taurus X
  • C3937 Ford Tempo
  • C3937 Ford Thunderbird
  • C3937 Ford Transit
  • C3937 Ford Transit Connect
  • C3937 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.