C0668

C0668 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C0668 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 C0668 Fault Code Meaning :

Ford C0668 Symptoms :

Ford C0668 Reasons :

How To Fix Ford C0668 Trouble Code ?

Which Ford cars have the code C0668?

  • C0668 Ford Aerostar
  • C0668 Ford Bronco
  • C0668 Ford C-Max
  • C0668 Ford C-Max Energi
  • C0668 Ford C-Max Hybrid
  • C0668 Ford Contour
  • C0668 Ford Crown Victoria
  • C0668 Ford EcoSport
  • C0668 Ford Econoline
  • C0668 Ford Edge
  • C0668 Ford Escape
  • C0668 Ford Escape Hybrid
  • C0668 Ford Escort
  • C0668 Ford Everest
  • C0668 Ford Excursion
  • C0668 Ford Expedition
  • C0668 Ford Explorer
  • C0668 Ford Explorer Sport Trac
  • C0668 Ford F-150
  • C0668 Ford F-250
  • C0668 Ford F-350
  • C0668 Ford Fiesta
  • C0668 Ford Flex
  • C0668 Ford Focus
  • C0668 Ford Focus Electric
  • C0668 Ford Freestar
  • C0668 Ford Freestyle
  • C0668 Ford Fusion
  • C0668 Ford Fusion Energi
  • C0668 Ford Fusion Hybrid
  • C0668 Ford Fusion Plug-In Hybrid
  • C0668 Ford GT
  • C0668 Ford Mustang
  • C0668 Ford Mustang Mach-E
  • C0668 Ford Mystique
  • C0668 Ford Probe
  • C0668 Ford Ranger
  • C0668 Ford Taurus
  • C0668 Ford Taurus X
  • C0668 Ford Tempo
  • C0668 Ford Thunderbird
  • C0668 Ford Transit
  • C0668 Ford Transit Connect
  • C0668 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.