P1478
P1478 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P1478 Diagnosis
The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.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 P1478 Fault Code Meaning :
Ford P1478 Symptoms :
Ford P1478 Reasons :
How To Fix Ford P1478 Trouble Code ?
Which Ford cars have the code P1478?
- P1478 Ford Aerostar
- P1478 Ford Bronco
- P1478 Ford C-Max
- P1478 Ford C-Max Energi
- P1478 Ford C-Max Hybrid
- P1478 Ford Contour
- P1478 Ford Crown Victoria
- P1478 Ford EcoSport
- P1478 Ford Econoline
- P1478 Ford Edge
- P1478 Ford Escape
- P1478 Ford Escape Hybrid
- P1478 Ford Escort
- P1478 Ford Everest
- P1478 Ford Excursion
- P1478 Ford Expedition
- P1478 Ford Explorer
- P1478 Ford Explorer Sport Trac
- P1478 Ford F-150
- P1478 Ford F-250
- P1478 Ford F-350
- P1478 Ford Fiesta
- P1478 Ford Flex
- P1478 Ford Focus
- P1478 Ford Focus Electric
- P1478 Ford Freestar
- P1478 Ford Freestyle
- P1478 Ford Fusion
- P1478 Ford Fusion Energi
- P1478 Ford Fusion Hybrid
- P1478 Ford Fusion Plug-In Hybrid
- P1478 Ford GT
- P1478 Ford Mustang
- P1478 Ford Mustang Mach-E
- P1478 Ford Mystique
- P1478 Ford Probe
- P1478 Ford Ranger
- P1478 Ford Taurus
- P1478 Ford Taurus X
- P1478 Ford Tempo
- P1478 Ford Thunderbird
- P1478 Ford Transit
- P1478 Ford Transit Connect
- P1478 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.