P991C
P991C Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P991C 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 P991C Fault Code Meaning :
Ford P991C Symptoms :
Ford P991C Reasons :
How To Fix Ford P991C Trouble Code ?
Which Ford cars have the code P991C?
- P991C Ford Aerostar
- P991C Ford Bronco
- P991C Ford C-Max
- P991C Ford C-Max Energi
- P991C Ford C-Max Hybrid
- P991C Ford Contour
- P991C Ford Crown Victoria
- P991C Ford EcoSport
- P991C Ford Econoline
- P991C Ford Edge
- P991C Ford Escape
- P991C Ford Escape Hybrid
- P991C Ford Escort
- P991C Ford Everest
- P991C Ford Excursion
- P991C Ford Expedition
- P991C Ford Explorer
- P991C Ford Explorer Sport Trac
- P991C Ford F-150
- P991C Ford F-250
- P991C Ford F-350
- P991C Ford Fiesta
- P991C Ford Flex
- P991C Ford Focus
- P991C Ford Focus Electric
- P991C Ford Freestar
- P991C Ford Freestyle
- P991C Ford Fusion
- P991C Ford Fusion Energi
- P991C Ford Fusion Hybrid
- P991C Ford Fusion Plug-In Hybrid
- P991C Ford GT
- P991C Ford Mustang
- P991C Ford Mustang Mach-E
- P991C Ford Mystique
- P991C Ford Probe
- P991C Ford Ranger
- P991C Ford Taurus
- P991C Ford Taurus X
- P991C Ford Tempo
- P991C Ford Thunderbird
- P991C Ford Transit
- P991C Ford Transit Connect
- P991C 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.