P4A12

P4A12 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P4A12 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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 P4A12 Fault Code Meaning :

Ford P4A12 Symptoms :

Ford P4A12 Reasons :

How To Fix Ford P4A12 Trouble Code ?

Which Ford cars have the code P4A12?

  • P4A12 Ford Aerostar
  • P4A12 Ford Bronco
  • P4A12 Ford C-Max
  • P4A12 Ford C-Max Energi
  • P4A12 Ford C-Max Hybrid
  • P4A12 Ford Contour
  • P4A12 Ford Crown Victoria
  • P4A12 Ford EcoSport
  • P4A12 Ford Econoline
  • P4A12 Ford Edge
  • P4A12 Ford Escape
  • P4A12 Ford Escape Hybrid
  • P4A12 Ford Escort
  • P4A12 Ford Everest
  • P4A12 Ford Excursion
  • P4A12 Ford Expedition
  • P4A12 Ford Explorer
  • P4A12 Ford Explorer Sport Trac
  • P4A12 Ford F-150
  • P4A12 Ford F-250
  • P4A12 Ford F-350
  • P4A12 Ford Fiesta
  • P4A12 Ford Flex
  • P4A12 Ford Focus
  • P4A12 Ford Focus Electric
  • P4A12 Ford Freestar
  • P4A12 Ford Freestyle
  • P4A12 Ford Fusion
  • P4A12 Ford Fusion Energi
  • P4A12 Ford Fusion Hybrid
  • P4A12 Ford Fusion Plug-In Hybrid
  • P4A12 Ford GT
  • P4A12 Ford Mustang
  • P4A12 Ford Mustang Mach-E
  • P4A12 Ford Mystique
  • P4A12 Ford Probe
  • P4A12 Ford Ranger
  • P4A12 Ford Taurus
  • P4A12 Ford Taurus X
  • P4A12 Ford Tempo
  • P4A12 Ford Thunderbird
  • P4A12 Ford Transit
  • P4A12 Ford Transit Connect
  • P4A12 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.