U1278
U1278 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.U1278 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 U1278 Fault Code Meaning :
Ford U1278 Symptoms :
Ford U1278 Reasons :
How To Fix Ford U1278 Trouble Code ?
Which Ford cars have the code U1278?
- U1278 Ford Aerostar
- U1278 Ford Bronco
- U1278 Ford C-Max
- U1278 Ford C-Max Energi
- U1278 Ford C-Max Hybrid
- U1278 Ford Contour
- U1278 Ford Crown Victoria
- U1278 Ford EcoSport
- U1278 Ford Econoline
- U1278 Ford Edge
- U1278 Ford Escape
- U1278 Ford Escape Hybrid
- U1278 Ford Escort
- U1278 Ford Everest
- U1278 Ford Excursion
- U1278 Ford Expedition
- U1278 Ford Explorer
- U1278 Ford Explorer Sport Trac
- U1278 Ford F-150
- U1278 Ford F-250
- U1278 Ford F-350
- U1278 Ford Fiesta
- U1278 Ford Flex
- U1278 Ford Focus
- U1278 Ford Focus Electric
- U1278 Ford Freestar
- U1278 Ford Freestyle
- U1278 Ford Fusion
- U1278 Ford Fusion Energi
- U1278 Ford Fusion Hybrid
- U1278 Ford Fusion Plug-In Hybrid
- U1278 Ford GT
- U1278 Ford Mustang
- U1278 Ford Mustang Mach-E
- U1278 Ford Mystique
- U1278 Ford Probe
- U1278 Ford Ranger
- U1278 Ford Taurus
- U1278 Ford Taurus X
- U1278 Ford Tempo
- U1278 Ford Thunderbird
- U1278 Ford Transit
- U1278 Ford Transit Connect
- U1278 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.