B21B0

B21B0 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B21B0 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 B21B0 Fault Code Meaning :

Ford B21B0 Symptoms :

Ford B21B0 Reasons :

How To Fix Ford B21B0 Trouble Code ?

Which Ford cars have the code B21B0?

  • B21B0 Ford Aerostar
  • B21B0 Ford Bronco
  • B21B0 Ford C-Max
  • B21B0 Ford C-Max Energi
  • B21B0 Ford C-Max Hybrid
  • B21B0 Ford Contour
  • B21B0 Ford Crown Victoria
  • B21B0 Ford EcoSport
  • B21B0 Ford Econoline
  • B21B0 Ford Edge
  • B21B0 Ford Escape
  • B21B0 Ford Escape Hybrid
  • B21B0 Ford Escort
  • B21B0 Ford Everest
  • B21B0 Ford Excursion
  • B21B0 Ford Expedition
  • B21B0 Ford Explorer
  • B21B0 Ford Explorer Sport Trac
  • B21B0 Ford F-150
  • B21B0 Ford F-250
  • B21B0 Ford F-350
  • B21B0 Ford Fiesta
  • B21B0 Ford Flex
  • B21B0 Ford Focus
  • B21B0 Ford Focus Electric
  • B21B0 Ford Freestar
  • B21B0 Ford Freestyle
  • B21B0 Ford Fusion
  • B21B0 Ford Fusion Energi
  • B21B0 Ford Fusion Hybrid
  • B21B0 Ford Fusion Plug-In Hybrid
  • B21B0 Ford GT
  • B21B0 Ford Mustang
  • B21B0 Ford Mustang Mach-E
  • B21B0 Ford Mystique
  • B21B0 Ford Probe
  • B21B0 Ford Ranger
  • B21B0 Ford Taurus
  • B21B0 Ford Taurus X
  • B21B0 Ford Tempo
  • B21B0 Ford Thunderbird
  • B21B0 Ford Transit
  • B21B0 Ford Transit Connect
  • B21B0 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.