P978C

P978C Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P978C Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 BHM drives the 5 cab overhead clearance and ID lamps from connector B5 pin C on circuit 46. All other marker and tail lamps are driven from BHM connector B1,K on circuit 23. This circuit connects to the CHM as an input at connector J3,P.

Ford P978C Fault Code Meaning :

Ford P978C Symptoms :

Ford P978C Reasons :

How To Fix Ford P978C Trouble Code ?

Which Ford cars have the code P978C?

  • P978C Ford Aerostar
  • P978C Ford Bronco
  • P978C Ford C-Max
  • P978C Ford C-Max Energi
  • P978C Ford C-Max Hybrid
  • P978C Ford Contour
  • P978C Ford Crown Victoria
  • P978C Ford EcoSport
  • P978C Ford Econoline
  • P978C Ford Edge
  • P978C Ford Escape
  • P978C Ford Escape Hybrid
  • P978C Ford Escort
  • P978C Ford Everest
  • P978C Ford Excursion
  • P978C Ford Expedition
  • P978C Ford Explorer
  • P978C Ford Explorer Sport Trac
  • P978C Ford F-150
  • P978C Ford F-250
  • P978C Ford F-350
  • P978C Ford Fiesta
  • P978C Ford Flex
  • P978C Ford Focus
  • P978C Ford Focus Electric
  • P978C Ford Freestar
  • P978C Ford Freestyle
  • P978C Ford Fusion
  • P978C Ford Fusion Energi
  • P978C Ford Fusion Hybrid
  • P978C Ford Fusion Plug-In Hybrid
  • P978C Ford GT
  • P978C Ford Mustang
  • P978C Ford Mustang Mach-E
  • P978C Ford Mystique
  • P978C Ford Probe
  • P978C Ford Ranger
  • P978C Ford Taurus
  • P978C Ford Taurus X
  • P978C Ford Tempo
  • P978C Ford Thunderbird
  • P978C Ford Transit
  • P978C Ford Transit Connect
  • P978C 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.