P4A40

P4A40 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P4A40 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 P4A40 Fault Code Meaning :

Ford P4A40 Symptoms :

Ford P4A40 Reasons :

How To Fix Ford P4A40 Trouble Code ?

Which Ford cars have the code P4A40?

  • P4A40 Ford Aerostar
  • P4A40 Ford Bronco
  • P4A40 Ford C-Max
  • P4A40 Ford C-Max Energi
  • P4A40 Ford C-Max Hybrid
  • P4A40 Ford Contour
  • P4A40 Ford Crown Victoria
  • P4A40 Ford EcoSport
  • P4A40 Ford Econoline
  • P4A40 Ford Edge
  • P4A40 Ford Escape
  • P4A40 Ford Escape Hybrid
  • P4A40 Ford Escort
  • P4A40 Ford Everest
  • P4A40 Ford Excursion
  • P4A40 Ford Expedition
  • P4A40 Ford Explorer
  • P4A40 Ford Explorer Sport Trac
  • P4A40 Ford F-150
  • P4A40 Ford F-250
  • P4A40 Ford F-350
  • P4A40 Ford Fiesta
  • P4A40 Ford Flex
  • P4A40 Ford Focus
  • P4A40 Ford Focus Electric
  • P4A40 Ford Freestar
  • P4A40 Ford Freestyle
  • P4A40 Ford Fusion
  • P4A40 Ford Fusion Energi
  • P4A40 Ford Fusion Hybrid
  • P4A40 Ford Fusion Plug-In Hybrid
  • P4A40 Ford GT
  • P4A40 Ford Mustang
  • P4A40 Ford Mustang Mach-E
  • P4A40 Ford Mystique
  • P4A40 Ford Probe
  • P4A40 Ford Ranger
  • P4A40 Ford Taurus
  • P4A40 Ford Taurus X
  • P4A40 Ford Tempo
  • P4A40 Ford Thunderbird
  • P4A40 Ford Transit
  • P4A40 Ford Transit Connect
  • P4A40 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.