P21CB

P21CB Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P21CB Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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.

The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.

Ford P21CB Fault Code Meaning :

Ford P21CB Symptoms :

Ford P21CB Reasons :

How To Fix Ford P21CB Trouble Code ?

Which Ford cars have the code P21CB?

  • P21CB Ford Aerostar
  • P21CB Ford Bronco
  • P21CB Ford C-Max
  • P21CB Ford C-Max Energi
  • P21CB Ford C-Max Hybrid
  • P21CB Ford Contour
  • P21CB Ford Crown Victoria
  • P21CB Ford EcoSport
  • P21CB Ford Econoline
  • P21CB Ford Edge
  • P21CB Ford Escape
  • P21CB Ford Escape Hybrid
  • P21CB Ford Escort
  • P21CB Ford Everest
  • P21CB Ford Excursion
  • P21CB Ford Expedition
  • P21CB Ford Explorer
  • P21CB Ford Explorer Sport Trac
  • P21CB Ford F-150
  • P21CB Ford F-250
  • P21CB Ford F-350
  • P21CB Ford Fiesta
  • P21CB Ford Flex
  • P21CB Ford Focus
  • P21CB Ford Focus Electric
  • P21CB Ford Freestar
  • P21CB Ford Freestyle
  • P21CB Ford Fusion
  • P21CB Ford Fusion Energi
  • P21CB Ford Fusion Hybrid
  • P21CB Ford Fusion Plug-In Hybrid
  • P21CB Ford GT
  • P21CB Ford Mustang
  • P21CB Ford Mustang Mach-E
  • P21CB Ford Mystique
  • P21CB Ford Probe
  • P21CB Ford Ranger
  • P21CB Ford Taurus
  • P21CB Ford Taurus X
  • P21CB Ford Tempo
  • P21CB Ford Thunderbird
  • P21CB Ford Transit
  • P21CB Ford Transit Connect
  • P21CB 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.