U0040

U0040 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U0040 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.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 U0040 Fault Code Meaning :

Ford U0040 Symptoms :

Ford U0040 Reasons :

How To Fix Ford U0040 Trouble Code ?

Which Ford cars have the code U0040?

  • U0040 Ford Aerostar
  • U0040 Ford Bronco
  • U0040 Ford C-Max
  • U0040 Ford C-Max Energi
  • U0040 Ford C-Max Hybrid
  • U0040 Ford Contour
  • U0040 Ford Crown Victoria
  • U0040 Ford EcoSport
  • U0040 Ford Econoline
  • U0040 Ford Edge
  • U0040 Ford Escape
  • U0040 Ford Escape Hybrid
  • U0040 Ford Escort
  • U0040 Ford Everest
  • U0040 Ford Excursion
  • U0040 Ford Expedition
  • U0040 Ford Explorer
  • U0040 Ford Explorer Sport Trac
  • U0040 Ford F-150
  • U0040 Ford F-250
  • U0040 Ford F-350
  • U0040 Ford Fiesta
  • U0040 Ford Flex
  • U0040 Ford Focus
  • U0040 Ford Focus Electric
  • U0040 Ford Freestar
  • U0040 Ford Freestyle
  • U0040 Ford Fusion
  • U0040 Ford Fusion Energi
  • U0040 Ford Fusion Hybrid
  • U0040 Ford Fusion Plug-In Hybrid
  • U0040 Ford GT
  • U0040 Ford Mustang
  • U0040 Ford Mustang Mach-E
  • U0040 Ford Mystique
  • U0040 Ford Probe
  • U0040 Ford Ranger
  • U0040 Ford Taurus
  • U0040 Ford Taurus X
  • U0040 Ford Tempo
  • U0040 Ford Thunderbird
  • U0040 Ford Transit
  • U0040 Ford Transit Connect
  • U0040 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.