C3964

C3964 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C3964 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 BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford C3964 Fault Code Meaning :

Ford C3964 Symptoms :

Ford C3964 Reasons :

How To Fix Ford C3964 Trouble Code ?

Which Ford cars have the code C3964?

  • C3964 Ford Aerostar
  • C3964 Ford Bronco
  • C3964 Ford C-Max
  • C3964 Ford C-Max Energi
  • C3964 Ford C-Max Hybrid
  • C3964 Ford Contour
  • C3964 Ford Crown Victoria
  • C3964 Ford EcoSport
  • C3964 Ford Econoline
  • C3964 Ford Edge
  • C3964 Ford Escape
  • C3964 Ford Escape Hybrid
  • C3964 Ford Escort
  • C3964 Ford Everest
  • C3964 Ford Excursion
  • C3964 Ford Expedition
  • C3964 Ford Explorer
  • C3964 Ford Explorer Sport Trac
  • C3964 Ford F-150
  • C3964 Ford F-250
  • C3964 Ford F-350
  • C3964 Ford Fiesta
  • C3964 Ford Flex
  • C3964 Ford Focus
  • C3964 Ford Focus Electric
  • C3964 Ford Freestar
  • C3964 Ford Freestyle
  • C3964 Ford Fusion
  • C3964 Ford Fusion Energi
  • C3964 Ford Fusion Hybrid
  • C3964 Ford Fusion Plug-In Hybrid
  • C3964 Ford GT
  • C3964 Ford Mustang
  • C3964 Ford Mustang Mach-E
  • C3964 Ford Mystique
  • C3964 Ford Probe
  • C3964 Ford Ranger
  • C3964 Ford Taurus
  • C3964 Ford Taurus X
  • C3964 Ford Tempo
  • C3964 Ford Thunderbird
  • C3964 Ford Transit
  • C3964 Ford Transit Connect
  • C3964 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.