P3666
P3666 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P3666 Diagnosis
The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.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 P3666 Fault Code Meaning :
Ford P3666 Symptoms :
Ford P3666 Reasons :
How To Fix Ford P3666 Trouble Code ?
Which Ford cars have the code P3666?
- P3666 Ford Aerostar
- P3666 Ford Bronco
- P3666 Ford C-Max
- P3666 Ford C-Max Energi
- P3666 Ford C-Max Hybrid
- P3666 Ford Contour
- P3666 Ford Crown Victoria
- P3666 Ford EcoSport
- P3666 Ford Econoline
- P3666 Ford Edge
- P3666 Ford Escape
- P3666 Ford Escape Hybrid
- P3666 Ford Escort
- P3666 Ford Everest
- P3666 Ford Excursion
- P3666 Ford Expedition
- P3666 Ford Explorer
- P3666 Ford Explorer Sport Trac
- P3666 Ford F-150
- P3666 Ford F-250
- P3666 Ford F-350
- P3666 Ford Fiesta
- P3666 Ford Flex
- P3666 Ford Focus
- P3666 Ford Focus Electric
- P3666 Ford Freestar
- P3666 Ford Freestyle
- P3666 Ford Fusion
- P3666 Ford Fusion Energi
- P3666 Ford Fusion Hybrid
- P3666 Ford Fusion Plug-In Hybrid
- P3666 Ford GT
- P3666 Ford Mustang
- P3666 Ford Mustang Mach-E
- P3666 Ford Mystique
- P3666 Ford Probe
- P3666 Ford Ranger
- P3666 Ford Taurus
- P3666 Ford Taurus X
- P3666 Ford Tempo
- P3666 Ford Thunderbird
- P3666 Ford Transit
- P3666 Ford Transit Connect
- P3666 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.