P0721

P0721 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P0721 Diagnosis

The CHM does not suupport PWM type DRLs. The vehicle has a BHM mismatch with the CHM. Replace the CHM with one that is compatible with the BHM.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 P0721 Fault Code Meaning :

Ford P0721 Symptoms :

Ford P0721 Reasons :

How To Fix Ford P0721 Trouble Code ?

Which Ford cars have the code P0721?

  • P0721 Ford Aerostar
  • P0721 Ford Bronco
  • P0721 Ford C-Max
  • P0721 Ford C-Max Energi
  • P0721 Ford C-Max Hybrid
  • P0721 Ford Contour
  • P0721 Ford Crown Victoria
  • P0721 Ford EcoSport
  • P0721 Ford Econoline
  • P0721 Ford Edge
  • P0721 Ford Escape
  • P0721 Ford Escape Hybrid
  • P0721 Ford Escort
  • P0721 Ford Everest
  • P0721 Ford Excursion
  • P0721 Ford Expedition
  • P0721 Ford Explorer
  • P0721 Ford Explorer Sport Trac
  • P0721 Ford F-150
  • P0721 Ford F-250
  • P0721 Ford F-350
  • P0721 Ford Fiesta
  • P0721 Ford Flex
  • P0721 Ford Focus
  • P0721 Ford Focus Electric
  • P0721 Ford Freestar
  • P0721 Ford Freestyle
  • P0721 Ford Fusion
  • P0721 Ford Fusion Energi
  • P0721 Ford Fusion Hybrid
  • P0721 Ford Fusion Plug-In Hybrid
  • P0721 Ford GT
  • P0721 Ford Mustang
  • P0721 Ford Mustang Mach-E
  • P0721 Ford Mystique
  • P0721 Ford Probe
  • P0721 Ford Ranger
  • P0721 Ford Taurus
  • P0721 Ford Taurus X
  • P0721 Ford Tempo
  • P0721 Ford Thunderbird
  • P0721 Ford Transit
  • P0721 Ford Transit Connect
  • P0721 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.