C3640

C3640 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3640 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 position information for the switch becomes Not Available. Remove the duplicate Smart Switch, then use ServiceLink to verify that the correct Smart Switches are configured for the vehicle.

A comparison of pressures from all sensors is made. The smallest difference between the three is determined and a reference pressure is calculated. The Barometric pressure sensor value is compared to the reference value and if the difference is above the threshold a DTC is reported.

Ford C3640 Fault Code Meaning :

Ford C3640 Symptoms :

Ford C3640 Reasons :

How To Fix Ford C3640 Trouble Code ?

Which Ford cars have the code C3640?

  • C3640 Ford Aerostar
  • C3640 Ford Bronco
  • C3640 Ford C-Max
  • C3640 Ford C-Max Energi
  • C3640 Ford C-Max Hybrid
  • C3640 Ford Contour
  • C3640 Ford Crown Victoria
  • C3640 Ford EcoSport
  • C3640 Ford Econoline
  • C3640 Ford Edge
  • C3640 Ford Escape
  • C3640 Ford Escape Hybrid
  • C3640 Ford Escort
  • C3640 Ford Everest
  • C3640 Ford Excursion
  • C3640 Ford Expedition
  • C3640 Ford Explorer
  • C3640 Ford Explorer Sport Trac
  • C3640 Ford F-150
  • C3640 Ford F-250
  • C3640 Ford F-350
  • C3640 Ford Fiesta
  • C3640 Ford Flex
  • C3640 Ford Focus
  • C3640 Ford Focus Electric
  • C3640 Ford Freestar
  • C3640 Ford Freestyle
  • C3640 Ford Fusion
  • C3640 Ford Fusion Energi
  • C3640 Ford Fusion Hybrid
  • C3640 Ford Fusion Plug-In Hybrid
  • C3640 Ford GT
  • C3640 Ford Mustang
  • C3640 Ford Mustang Mach-E
  • C3640 Ford Mystique
  • C3640 Ford Probe
  • C3640 Ford Ranger
  • C3640 Ford Taurus
  • C3640 Ford Taurus X
  • C3640 Ford Tempo
  • C3640 Ford Thunderbird
  • C3640 Ford Transit
  • C3640 Ford Transit Connect
  • C3640 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.