P66F9
P66F9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P66F9 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 BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.
When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.
Ford P66F9 Fault Code Meaning :
Ford P66F9 Symptoms :
Ford P66F9 Reasons :
How To Fix Ford P66F9 Trouble Code ?
Which Ford cars have the code P66F9?
- P66F9 Ford Aerostar
- P66F9 Ford Bronco
- P66F9 Ford C-Max
- P66F9 Ford C-Max Energi
- P66F9 Ford C-Max Hybrid
- P66F9 Ford Contour
- P66F9 Ford Crown Victoria
- P66F9 Ford EcoSport
- P66F9 Ford Econoline
- P66F9 Ford Edge
- P66F9 Ford Escape
- P66F9 Ford Escape Hybrid
- P66F9 Ford Escort
- P66F9 Ford Everest
- P66F9 Ford Excursion
- P66F9 Ford Expedition
- P66F9 Ford Explorer
- P66F9 Ford Explorer Sport Trac
- P66F9 Ford F-150
- P66F9 Ford F-250
- P66F9 Ford F-350
- P66F9 Ford Fiesta
- P66F9 Ford Flex
- P66F9 Ford Focus
- P66F9 Ford Focus Electric
- P66F9 Ford Freestar
- P66F9 Ford Freestyle
- P66F9 Ford Fusion
- P66F9 Ford Fusion Energi
- P66F9 Ford Fusion Hybrid
- P66F9 Ford Fusion Plug-In Hybrid
- P66F9 Ford GT
- P66F9 Ford Mustang
- P66F9 Ford Mustang Mach-E
- P66F9 Ford Mystique
- P66F9 Ford Probe
- P66F9 Ford Ranger
- P66F9 Ford Taurus
- P66F9 Ford Taurus X
- P66F9 Ford Tempo
- P66F9 Ford Thunderbird
- P66F9 Ford Transit
- P66F9 Ford Transit Connect
- P66F9 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.