P12B3

P12B3 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P12B3 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 2 air solenoid fault, and for air pressure switch short circuit fault.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 P12B3 Fault Code Meaning :

Ford P12B3 Symptoms :

Ford P12B3 Reasons :

How To Fix Ford P12B3 Trouble Code ?

Which Ford cars have the code P12B3?

  • P12B3 Ford Aerostar
  • P12B3 Ford Bronco
  • P12B3 Ford C-Max
  • P12B3 Ford C-Max Energi
  • P12B3 Ford C-Max Hybrid
  • P12B3 Ford Contour
  • P12B3 Ford Crown Victoria
  • P12B3 Ford EcoSport
  • P12B3 Ford Econoline
  • P12B3 Ford Edge
  • P12B3 Ford Escape
  • P12B3 Ford Escape Hybrid
  • P12B3 Ford Escort
  • P12B3 Ford Everest
  • P12B3 Ford Excursion
  • P12B3 Ford Expedition
  • P12B3 Ford Explorer
  • P12B3 Ford Explorer Sport Trac
  • P12B3 Ford F-150
  • P12B3 Ford F-250
  • P12B3 Ford F-350
  • P12B3 Ford Fiesta
  • P12B3 Ford Flex
  • P12B3 Ford Focus
  • P12B3 Ford Focus Electric
  • P12B3 Ford Freestar
  • P12B3 Ford Freestyle
  • P12B3 Ford Fusion
  • P12B3 Ford Fusion Energi
  • P12B3 Ford Fusion Hybrid
  • P12B3 Ford Fusion Plug-In Hybrid
  • P12B3 Ford GT
  • P12B3 Ford Mustang
  • P12B3 Ford Mustang Mach-E
  • P12B3 Ford Mystique
  • P12B3 Ford Probe
  • P12B3 Ford Ranger
  • P12B3 Ford Taurus
  • P12B3 Ford Taurus X
  • P12B3 Ford Tempo
  • P12B3 Ford Thunderbird
  • P12B3 Ford Transit
  • P12B3 Ford Transit Connect
  • P12B3 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.