U3740

U3740 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3740 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 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 U3740 Fault Code Meaning :

Ford U3740 Symptoms :

Ford U3740 Reasons :

How To Fix Ford U3740 Trouble Code ?

Which Ford cars have the code U3740?

  • U3740 Ford Aerostar
  • U3740 Ford Bronco
  • U3740 Ford C-Max
  • U3740 Ford C-Max Energi
  • U3740 Ford C-Max Hybrid
  • U3740 Ford Contour
  • U3740 Ford Crown Victoria
  • U3740 Ford EcoSport
  • U3740 Ford Econoline
  • U3740 Ford Edge
  • U3740 Ford Escape
  • U3740 Ford Escape Hybrid
  • U3740 Ford Escort
  • U3740 Ford Everest
  • U3740 Ford Excursion
  • U3740 Ford Expedition
  • U3740 Ford Explorer
  • U3740 Ford Explorer Sport Trac
  • U3740 Ford F-150
  • U3740 Ford F-250
  • U3740 Ford F-350
  • U3740 Ford Fiesta
  • U3740 Ford Flex
  • U3740 Ford Focus
  • U3740 Ford Focus Electric
  • U3740 Ford Freestar
  • U3740 Ford Freestyle
  • U3740 Ford Fusion
  • U3740 Ford Fusion Energi
  • U3740 Ford Fusion Hybrid
  • U3740 Ford Fusion Plug-In Hybrid
  • U3740 Ford GT
  • U3740 Ford Mustang
  • U3740 Ford Mustang Mach-E
  • U3740 Ford Mystique
  • U3740 Ford Probe
  • U3740 Ford Ranger
  • U3740 Ford Taurus
  • U3740 Ford Taurus X
  • U3740 Ford Tempo
  • U3740 Ford Thunderbird
  • U3740 Ford Transit
  • U3740 Ford Transit Connect
  • U3740 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.