P0403

P0403 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0403 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 P0403 Fault Code Meaning :

Ford P0403 Symptoms :

Ford P0403 Reasons :

How To Fix Ford P0403 Trouble Code ?

Which Ford cars have the code P0403?

  • P0403 Ford Aerostar
  • P0403 Ford Bronco
  • P0403 Ford C-Max
  • P0403 Ford C-Max Energi
  • P0403 Ford C-Max Hybrid
  • P0403 Ford Contour
  • P0403 Ford Crown Victoria
  • P0403 Ford EcoSport
  • P0403 Ford Econoline
  • P0403 Ford Edge
  • P0403 Ford Escape
  • P0403 Ford Escape Hybrid
  • P0403 Ford Escort
  • P0403 Ford Everest
  • P0403 Ford Excursion
  • P0403 Ford Expedition
  • P0403 Ford Explorer
  • P0403 Ford Explorer Sport Trac
  • P0403 Ford F-150
  • P0403 Ford F-250
  • P0403 Ford F-350
  • P0403 Ford Fiesta
  • P0403 Ford Flex
  • P0403 Ford Focus
  • P0403 Ford Focus Electric
  • P0403 Ford Freestar
  • P0403 Ford Freestyle
  • P0403 Ford Fusion
  • P0403 Ford Fusion Energi
  • P0403 Ford Fusion Hybrid
  • P0403 Ford Fusion Plug-In Hybrid
  • P0403 Ford GT
  • P0403 Ford Mustang
  • P0403 Ford Mustang Mach-E
  • P0403 Ford Mystique
  • P0403 Ford Probe
  • P0403 Ford Ranger
  • P0403 Ford Taurus
  • P0403 Ford Taurus X
  • P0403 Ford Tempo
  • P0403 Ford Thunderbird
  • P0403 Ford Transit
  • P0403 Ford Transit Connect
  • P0403 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.