P66D4
P66D4 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P66D4 Diagnosis
The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.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 P66D4 Fault Code Meaning :
Ford P66D4 Symptoms :
Ford P66D4 Reasons :
How To Fix Ford P66D4 Trouble Code ?
Which Ford cars have the code P66D4?
- P66D4 Ford Aerostar
- P66D4 Ford Bronco
- P66D4 Ford C-Max
- P66D4 Ford C-Max Energi
- P66D4 Ford C-Max Hybrid
- P66D4 Ford Contour
- P66D4 Ford Crown Victoria
- P66D4 Ford EcoSport
- P66D4 Ford Econoline
- P66D4 Ford Edge
- P66D4 Ford Escape
- P66D4 Ford Escape Hybrid
- P66D4 Ford Escort
- P66D4 Ford Everest
- P66D4 Ford Excursion
- P66D4 Ford Expedition
- P66D4 Ford Explorer
- P66D4 Ford Explorer Sport Trac
- P66D4 Ford F-150
- P66D4 Ford F-250
- P66D4 Ford F-350
- P66D4 Ford Fiesta
- P66D4 Ford Flex
- P66D4 Ford Focus
- P66D4 Ford Focus Electric
- P66D4 Ford Freestar
- P66D4 Ford Freestyle
- P66D4 Ford Fusion
- P66D4 Ford Fusion Energi
- P66D4 Ford Fusion Hybrid
- P66D4 Ford Fusion Plug-In Hybrid
- P66D4 Ford GT
- P66D4 Ford Mustang
- P66D4 Ford Mustang Mach-E
- P66D4 Ford Mystique
- P66D4 Ford Probe
- P66D4 Ford Ranger
- P66D4 Ford Taurus
- P66D4 Ford Taurus X
- P66D4 Ford Tempo
- P66D4 Ford Thunderbird
- P66D4 Ford Transit
- P66D4 Ford Transit Connect
- P66D4 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.