P977B

P977B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P977B 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 P977B Fault Code Meaning :

Ford P977B Symptoms :

Ford P977B Reasons :

How To Fix Ford P977B Trouble Code ?

Which Ford cars have the code P977B?

  • P977B Ford Aerostar
  • P977B Ford Bronco
  • P977B Ford C-Max
  • P977B Ford C-Max Energi
  • P977B Ford C-Max Hybrid
  • P977B Ford Contour
  • P977B Ford Crown Victoria
  • P977B Ford EcoSport
  • P977B Ford Econoline
  • P977B Ford Edge
  • P977B Ford Escape
  • P977B Ford Escape Hybrid
  • P977B Ford Escort
  • P977B Ford Everest
  • P977B Ford Excursion
  • P977B Ford Expedition
  • P977B Ford Explorer
  • P977B Ford Explorer Sport Trac
  • P977B Ford F-150
  • P977B Ford F-250
  • P977B Ford F-350
  • P977B Ford Fiesta
  • P977B Ford Flex
  • P977B Ford Focus
  • P977B Ford Focus Electric
  • P977B Ford Freestar
  • P977B Ford Freestyle
  • P977B Ford Fusion
  • P977B Ford Fusion Energi
  • P977B Ford Fusion Hybrid
  • P977B Ford Fusion Plug-In Hybrid
  • P977B Ford GT
  • P977B Ford Mustang
  • P977B Ford Mustang Mach-E
  • P977B Ford Mystique
  • P977B Ford Probe
  • P977B Ford Ranger
  • P977B Ford Taurus
  • P977B Ford Taurus X
  • P977B Ford Tempo
  • P977B Ford Thunderbird
  • P977B Ford Transit
  • P977B Ford Transit Connect
  • P977B 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.