P804B

P804B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P804B 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 P804B Fault Code Meaning :

Ford P804B Symptoms :

Ford P804B Reasons :

How To Fix Ford P804B Trouble Code ?

Which Ford cars have the code P804B?

  • P804B Ford Aerostar
  • P804B Ford Bronco
  • P804B Ford C-Max
  • P804B Ford C-Max Energi
  • P804B Ford C-Max Hybrid
  • P804B Ford Contour
  • P804B Ford Crown Victoria
  • P804B Ford EcoSport
  • P804B Ford Econoline
  • P804B Ford Edge
  • P804B Ford Escape
  • P804B Ford Escape Hybrid
  • P804B Ford Escort
  • P804B Ford Everest
  • P804B Ford Excursion
  • P804B Ford Expedition
  • P804B Ford Explorer
  • P804B Ford Explorer Sport Trac
  • P804B Ford F-150
  • P804B Ford F-250
  • P804B Ford F-350
  • P804B Ford Fiesta
  • P804B Ford Flex
  • P804B Ford Focus
  • P804B Ford Focus Electric
  • P804B Ford Freestar
  • P804B Ford Freestyle
  • P804B Ford Fusion
  • P804B Ford Fusion Energi
  • P804B Ford Fusion Hybrid
  • P804B Ford Fusion Plug-In Hybrid
  • P804B Ford GT
  • P804B Ford Mustang
  • P804B Ford Mustang Mach-E
  • P804B Ford Mystique
  • P804B Ford Probe
  • P804B Ford Ranger
  • P804B Ford Taurus
  • P804B Ford Taurus X
  • P804B Ford Tempo
  • P804B Ford Thunderbird
  • P804B Ford Transit
  • P804B Ford Transit Connect
  • P804B 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.