C1978

C1978 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C1978 Diagnosis

The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford C1978 Fault Code Meaning :

Ford C1978 Symptoms :

Ford C1978 Reasons :

How To Fix Ford C1978 Trouble Code ?

Which Ford cars have the code C1978?

  • C1978 Ford Aerostar
  • C1978 Ford Bronco
  • C1978 Ford C-Max
  • C1978 Ford C-Max Energi
  • C1978 Ford C-Max Hybrid
  • C1978 Ford Contour
  • C1978 Ford Crown Victoria
  • C1978 Ford EcoSport
  • C1978 Ford Econoline
  • C1978 Ford Edge
  • C1978 Ford Escape
  • C1978 Ford Escape Hybrid
  • C1978 Ford Escort
  • C1978 Ford Everest
  • C1978 Ford Excursion
  • C1978 Ford Expedition
  • C1978 Ford Explorer
  • C1978 Ford Explorer Sport Trac
  • C1978 Ford F-150
  • C1978 Ford F-250
  • C1978 Ford F-350
  • C1978 Ford Fiesta
  • C1978 Ford Flex
  • C1978 Ford Focus
  • C1978 Ford Focus Electric
  • C1978 Ford Freestar
  • C1978 Ford Freestyle
  • C1978 Ford Fusion
  • C1978 Ford Fusion Energi
  • C1978 Ford Fusion Hybrid
  • C1978 Ford Fusion Plug-In Hybrid
  • C1978 Ford GT
  • C1978 Ford Mustang
  • C1978 Ford Mustang Mach-E
  • C1978 Ford Mystique
  • C1978 Ford Probe
  • C1978 Ford Ranger
  • C1978 Ford Taurus
  • C1978 Ford Taurus X
  • C1978 Ford Tempo
  • C1978 Ford Thunderbird
  • C1978 Ford Transit
  • C1978 Ford Transit Connect
  • C1978 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.