U3440

U3440 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3440 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford U3440 Fault Code Meaning :

Ford U3440 Symptoms :

Ford U3440 Reasons :

How To Fix Ford U3440 Trouble Code ?

Which Ford cars have the code U3440?

  • U3440 Ford Aerostar
  • U3440 Ford Bronco
  • U3440 Ford C-Max
  • U3440 Ford C-Max Energi
  • U3440 Ford C-Max Hybrid
  • U3440 Ford Contour
  • U3440 Ford Crown Victoria
  • U3440 Ford EcoSport
  • U3440 Ford Econoline
  • U3440 Ford Edge
  • U3440 Ford Escape
  • U3440 Ford Escape Hybrid
  • U3440 Ford Escort
  • U3440 Ford Everest
  • U3440 Ford Excursion
  • U3440 Ford Expedition
  • U3440 Ford Explorer
  • U3440 Ford Explorer Sport Trac
  • U3440 Ford F-150
  • U3440 Ford F-250
  • U3440 Ford F-350
  • U3440 Ford Fiesta
  • U3440 Ford Flex
  • U3440 Ford Focus
  • U3440 Ford Focus Electric
  • U3440 Ford Freestar
  • U3440 Ford Freestyle
  • U3440 Ford Fusion
  • U3440 Ford Fusion Energi
  • U3440 Ford Fusion Hybrid
  • U3440 Ford Fusion Plug-In Hybrid
  • U3440 Ford GT
  • U3440 Ford Mustang
  • U3440 Ford Mustang Mach-E
  • U3440 Ford Mystique
  • U3440 Ford Probe
  • U3440 Ford Ranger
  • U3440 Ford Taurus
  • U3440 Ford Taurus X
  • U3440 Ford Tempo
  • U3440 Ford Thunderbird
  • U3440 Ford Transit
  • U3440 Ford Transit Connect
  • U3440 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.