U3908

U3908 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3908 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 U3908 Fault Code Meaning :

Ford U3908 Symptoms :

Ford U3908 Reasons :

How To Fix Ford U3908 Trouble Code ?

Which Ford cars have the code U3908?

  • U3908 Ford Aerostar
  • U3908 Ford Bronco
  • U3908 Ford C-Max
  • U3908 Ford C-Max Energi
  • U3908 Ford C-Max Hybrid
  • U3908 Ford Contour
  • U3908 Ford Crown Victoria
  • U3908 Ford EcoSport
  • U3908 Ford Econoline
  • U3908 Ford Edge
  • U3908 Ford Escape
  • U3908 Ford Escape Hybrid
  • U3908 Ford Escort
  • U3908 Ford Everest
  • U3908 Ford Excursion
  • U3908 Ford Expedition
  • U3908 Ford Explorer
  • U3908 Ford Explorer Sport Trac
  • U3908 Ford F-150
  • U3908 Ford F-250
  • U3908 Ford F-350
  • U3908 Ford Fiesta
  • U3908 Ford Flex
  • U3908 Ford Focus
  • U3908 Ford Focus Electric
  • U3908 Ford Freestar
  • U3908 Ford Freestyle
  • U3908 Ford Fusion
  • U3908 Ford Fusion Energi
  • U3908 Ford Fusion Hybrid
  • U3908 Ford Fusion Plug-In Hybrid
  • U3908 Ford GT
  • U3908 Ford Mustang
  • U3908 Ford Mustang Mach-E
  • U3908 Ford Mystique
  • U3908 Ford Probe
  • U3908 Ford Ranger
  • U3908 Ford Taurus
  • U3908 Ford Taurus X
  • U3908 Ford Tempo
  • U3908 Ford Thunderbird
  • U3908 Ford Transit
  • U3908 Ford Transit Connect
  • U3908 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.