P77D4

P77D4 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P77D4 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.

A comparison of pressures from all sensors is made. The smallest difference between the three is determined and a reference pressure is calculated. The Barometric pressure sensor value is compared to the reference value and if the difference is above the threshold a DTC is reported.

Ford P77D4 Fault Code Meaning :

Ford P77D4 Symptoms :

Ford P77D4 Reasons :

How To Fix Ford P77D4 Trouble Code ?

Which Ford cars have the code P77D4?

  • P77D4 Ford Aerostar
  • P77D4 Ford Bronco
  • P77D4 Ford C-Max
  • P77D4 Ford C-Max Energi
  • P77D4 Ford C-Max Hybrid
  • P77D4 Ford Contour
  • P77D4 Ford Crown Victoria
  • P77D4 Ford EcoSport
  • P77D4 Ford Econoline
  • P77D4 Ford Edge
  • P77D4 Ford Escape
  • P77D4 Ford Escape Hybrid
  • P77D4 Ford Escort
  • P77D4 Ford Everest
  • P77D4 Ford Excursion
  • P77D4 Ford Expedition
  • P77D4 Ford Explorer
  • P77D4 Ford Explorer Sport Trac
  • P77D4 Ford F-150
  • P77D4 Ford F-250
  • P77D4 Ford F-350
  • P77D4 Ford Fiesta
  • P77D4 Ford Flex
  • P77D4 Ford Focus
  • P77D4 Ford Focus Electric
  • P77D4 Ford Freestar
  • P77D4 Ford Freestyle
  • P77D4 Ford Fusion
  • P77D4 Ford Fusion Energi
  • P77D4 Ford Fusion Hybrid
  • P77D4 Ford Fusion Plug-In Hybrid
  • P77D4 Ford GT
  • P77D4 Ford Mustang
  • P77D4 Ford Mustang Mach-E
  • P77D4 Ford Mystique
  • P77D4 Ford Probe
  • P77D4 Ford Ranger
  • P77D4 Ford Taurus
  • P77D4 Ford Taurus X
  • P77D4 Ford Tempo
  • P77D4 Ford Thunderbird
  • P77D4 Ford Transit
  • P77D4 Ford Transit Connect
  • P77D4 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.