P1678

P1678 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1678 Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.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.

Engine starting is disabled and other optional functions may be interrupted until the fault is corrected and the ignition switch is cycled.

Ford P1678 Fault Code Meaning :

Ford P1678 Symptoms :

Ford P1678 Reasons :

How To Fix Ford P1678 Trouble Code ?

Which Ford cars have the code P1678?

  • P1678 Ford Aerostar
  • P1678 Ford Bronco
  • P1678 Ford C-Max
  • P1678 Ford C-Max Energi
  • P1678 Ford C-Max Hybrid
  • P1678 Ford Contour
  • P1678 Ford Crown Victoria
  • P1678 Ford EcoSport
  • P1678 Ford Econoline
  • P1678 Ford Edge
  • P1678 Ford Escape
  • P1678 Ford Escape Hybrid
  • P1678 Ford Escort
  • P1678 Ford Everest
  • P1678 Ford Excursion
  • P1678 Ford Expedition
  • P1678 Ford Explorer
  • P1678 Ford Explorer Sport Trac
  • P1678 Ford F-150
  • P1678 Ford F-250
  • P1678 Ford F-350
  • P1678 Ford Fiesta
  • P1678 Ford Flex
  • P1678 Ford Focus
  • P1678 Ford Focus Electric
  • P1678 Ford Freestar
  • P1678 Ford Freestyle
  • P1678 Ford Fusion
  • P1678 Ford Fusion Energi
  • P1678 Ford Fusion Hybrid
  • P1678 Ford Fusion Plug-In Hybrid
  • P1678 Ford GT
  • P1678 Ford Mustang
  • P1678 Ford Mustang Mach-E
  • P1678 Ford Mystique
  • P1678 Ford Probe
  • P1678 Ford Ranger
  • P1678 Ford Taurus
  • P1678 Ford Taurus X
  • P1678 Ford Tempo
  • P1678 Ford Thunderbird
  • P1678 Ford Transit
  • P1678 Ford Transit Connect
  • P1678 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.