C1781

C1781 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C1781 Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open 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.

The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.

Ford C1781 Fault Code Meaning :

Ford C1781 Symptoms :

Ford C1781 Reasons :

How To Fix Ford C1781 Trouble Code ?

Which Ford cars have the code C1781?

  • C1781 Ford Aerostar
  • C1781 Ford Bronco
  • C1781 Ford C-Max
  • C1781 Ford C-Max Energi
  • C1781 Ford C-Max Hybrid
  • C1781 Ford Contour
  • C1781 Ford Crown Victoria
  • C1781 Ford EcoSport
  • C1781 Ford Econoline
  • C1781 Ford Edge
  • C1781 Ford Escape
  • C1781 Ford Escape Hybrid
  • C1781 Ford Escort
  • C1781 Ford Everest
  • C1781 Ford Excursion
  • C1781 Ford Expedition
  • C1781 Ford Explorer
  • C1781 Ford Explorer Sport Trac
  • C1781 Ford F-150
  • C1781 Ford F-250
  • C1781 Ford F-350
  • C1781 Ford Fiesta
  • C1781 Ford Flex
  • C1781 Ford Focus
  • C1781 Ford Focus Electric
  • C1781 Ford Freestar
  • C1781 Ford Freestyle
  • C1781 Ford Fusion
  • C1781 Ford Fusion Energi
  • C1781 Ford Fusion Hybrid
  • C1781 Ford Fusion Plug-In Hybrid
  • C1781 Ford GT
  • C1781 Ford Mustang
  • C1781 Ford Mustang Mach-E
  • C1781 Ford Mystique
  • C1781 Ford Probe
  • C1781 Ford Ranger
  • C1781 Ford Taurus
  • C1781 Ford Taurus X
  • C1781 Ford Tempo
  • C1781 Ford Thunderbird
  • C1781 Ford Transit
  • C1781 Ford Transit Connect
  • C1781 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.