P821B

P821B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P821B 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 ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.

Troubleshoot for a wiring short to ground fault on any of the CHM output or BHM output circuits discussed above. The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.

Ford P821B Fault Code Meaning :

Ford P821B Symptoms :

Ford P821B Reasons :

How To Fix Ford P821B Trouble Code ?

Which Ford cars have the code P821B?

  • P821B Ford Aerostar
  • P821B Ford Bronco
  • P821B Ford C-Max
  • P821B Ford C-Max Energi
  • P821B Ford C-Max Hybrid
  • P821B Ford Contour
  • P821B Ford Crown Victoria
  • P821B Ford EcoSport
  • P821B Ford Econoline
  • P821B Ford Edge
  • P821B Ford Escape
  • P821B Ford Escape Hybrid
  • P821B Ford Escort
  • P821B Ford Everest
  • P821B Ford Excursion
  • P821B Ford Expedition
  • P821B Ford Explorer
  • P821B Ford Explorer Sport Trac
  • P821B Ford F-150
  • P821B Ford F-250
  • P821B Ford F-350
  • P821B Ford Fiesta
  • P821B Ford Flex
  • P821B Ford Focus
  • P821B Ford Focus Electric
  • P821B Ford Freestar
  • P821B Ford Freestyle
  • P821B Ford Fusion
  • P821B Ford Fusion Energi
  • P821B Ford Fusion Hybrid
  • P821B Ford Fusion Plug-In Hybrid
  • P821B Ford GT
  • P821B Ford Mustang
  • P821B Ford Mustang Mach-E
  • P821B Ford Mystique
  • P821B Ford Probe
  • P821B Ford Ranger
  • P821B Ford Taurus
  • P821B Ford Taurus X
  • P821B Ford Tempo
  • P821B Ford Thunderbird
  • P821B Ford Transit
  • P821B Ford Transit Connect
  • P821B 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.