P3997

P3997 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3997 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford P3997 Fault Code Meaning :

Ford P3997 Symptoms :

Ford P3997 Reasons :

How To Fix Ford P3997 Trouble Code ?

Which Ford cars have the code P3997?

  • P3997 Ford Aerostar
  • P3997 Ford Bronco
  • P3997 Ford C-Max
  • P3997 Ford C-Max Energi
  • P3997 Ford C-Max Hybrid
  • P3997 Ford Contour
  • P3997 Ford Crown Victoria
  • P3997 Ford EcoSport
  • P3997 Ford Econoline
  • P3997 Ford Edge
  • P3997 Ford Escape
  • P3997 Ford Escape Hybrid
  • P3997 Ford Escort
  • P3997 Ford Everest
  • P3997 Ford Excursion
  • P3997 Ford Expedition
  • P3997 Ford Explorer
  • P3997 Ford Explorer Sport Trac
  • P3997 Ford F-150
  • P3997 Ford F-250
  • P3997 Ford F-350
  • P3997 Ford Fiesta
  • P3997 Ford Flex
  • P3997 Ford Focus
  • P3997 Ford Focus Electric
  • P3997 Ford Freestar
  • P3997 Ford Freestyle
  • P3997 Ford Fusion
  • P3997 Ford Fusion Energi
  • P3997 Ford Fusion Hybrid
  • P3997 Ford Fusion Plug-In Hybrid
  • P3997 Ford GT
  • P3997 Ford Mustang
  • P3997 Ford Mustang Mach-E
  • P3997 Ford Mystique
  • P3997 Ford Probe
  • P3997 Ford Ranger
  • P3997 Ford Taurus
  • P3997 Ford Taurus X
  • P3997 Ford Tempo
  • P3997 Ford Thunderbird
  • P3997 Ford Transit
  • P3997 Ford Transit Connect
  • P3997 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.