P389B

P389B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P389B 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 P389B Fault Code Meaning :

Ford P389B Symptoms :

Ford P389B Reasons :

How To Fix Ford P389B Trouble Code ?

Which Ford cars have the code P389B?

  • P389B Ford Aerostar
  • P389B Ford Bronco
  • P389B Ford C-Max
  • P389B Ford C-Max Energi
  • P389B Ford C-Max Hybrid
  • P389B Ford Contour
  • P389B Ford Crown Victoria
  • P389B Ford EcoSport
  • P389B Ford Econoline
  • P389B Ford Edge
  • P389B Ford Escape
  • P389B Ford Escape Hybrid
  • P389B Ford Escort
  • P389B Ford Everest
  • P389B Ford Excursion
  • P389B Ford Expedition
  • P389B Ford Explorer
  • P389B Ford Explorer Sport Trac
  • P389B Ford F-150
  • P389B Ford F-250
  • P389B Ford F-350
  • P389B Ford Fiesta
  • P389B Ford Flex
  • P389B Ford Focus
  • P389B Ford Focus Electric
  • P389B Ford Freestar
  • P389B Ford Freestyle
  • P389B Ford Fusion
  • P389B Ford Fusion Energi
  • P389B Ford Fusion Hybrid
  • P389B Ford Fusion Plug-In Hybrid
  • P389B Ford GT
  • P389B Ford Mustang
  • P389B Ford Mustang Mach-E
  • P389B Ford Mystique
  • P389B Ford Probe
  • P389B Ford Ranger
  • P389B Ford Taurus
  • P389B Ford Taurus X
  • P389B Ford Tempo
  • P389B Ford Thunderbird
  • P389B Ford Transit
  • P389B Ford Transit Connect
  • P389B 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.