P3451

P3451 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3451 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 P3451 Fault Code Meaning :

Ford P3451 Symptoms :

Ford P3451 Reasons :

How To Fix Ford P3451 Trouble Code ?

Which Ford cars have the code P3451?

  • P3451 Ford Aerostar
  • P3451 Ford Bronco
  • P3451 Ford C-Max
  • P3451 Ford C-Max Energi
  • P3451 Ford C-Max Hybrid
  • P3451 Ford Contour
  • P3451 Ford Crown Victoria
  • P3451 Ford EcoSport
  • P3451 Ford Econoline
  • P3451 Ford Edge
  • P3451 Ford Escape
  • P3451 Ford Escape Hybrid
  • P3451 Ford Escort
  • P3451 Ford Everest
  • P3451 Ford Excursion
  • P3451 Ford Expedition
  • P3451 Ford Explorer
  • P3451 Ford Explorer Sport Trac
  • P3451 Ford F-150
  • P3451 Ford F-250
  • P3451 Ford F-350
  • P3451 Ford Fiesta
  • P3451 Ford Flex
  • P3451 Ford Focus
  • P3451 Ford Focus Electric
  • P3451 Ford Freestar
  • P3451 Ford Freestyle
  • P3451 Ford Fusion
  • P3451 Ford Fusion Energi
  • P3451 Ford Fusion Hybrid
  • P3451 Ford Fusion Plug-In Hybrid
  • P3451 Ford GT
  • P3451 Ford Mustang
  • P3451 Ford Mustang Mach-E
  • P3451 Ford Mystique
  • P3451 Ford Probe
  • P3451 Ford Ranger
  • P3451 Ford Taurus
  • P3451 Ford Taurus X
  • P3451 Ford Tempo
  • P3451 Ford Thunderbird
  • P3451 Ford Transit
  • P3451 Ford Transit Connect
  • P3451 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.