P21B7

P21B7 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P21B7 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford P21B7 Fault Code Meaning :

Ford P21B7 Symptoms :

Ford P21B7 Reasons :

How To Fix Ford P21B7 Trouble Code ?

Which Ford cars have the code P21B7?

  • P21B7 Ford Aerostar
  • P21B7 Ford Bronco
  • P21B7 Ford C-Max
  • P21B7 Ford C-Max Energi
  • P21B7 Ford C-Max Hybrid
  • P21B7 Ford Contour
  • P21B7 Ford Crown Victoria
  • P21B7 Ford EcoSport
  • P21B7 Ford Econoline
  • P21B7 Ford Edge
  • P21B7 Ford Escape
  • P21B7 Ford Escape Hybrid
  • P21B7 Ford Escort
  • P21B7 Ford Everest
  • P21B7 Ford Excursion
  • P21B7 Ford Expedition
  • P21B7 Ford Explorer
  • P21B7 Ford Explorer Sport Trac
  • P21B7 Ford F-150
  • P21B7 Ford F-250
  • P21B7 Ford F-350
  • P21B7 Ford Fiesta
  • P21B7 Ford Flex
  • P21B7 Ford Focus
  • P21B7 Ford Focus Electric
  • P21B7 Ford Freestar
  • P21B7 Ford Freestyle
  • P21B7 Ford Fusion
  • P21B7 Ford Fusion Energi
  • P21B7 Ford Fusion Hybrid
  • P21B7 Ford Fusion Plug-In Hybrid
  • P21B7 Ford GT
  • P21B7 Ford Mustang
  • P21B7 Ford Mustang Mach-E
  • P21B7 Ford Mystique
  • P21B7 Ford Probe
  • P21B7 Ford Ranger
  • P21B7 Ford Taurus
  • P21B7 Ford Taurus X
  • P21B7 Ford Tempo
  • P21B7 Ford Thunderbird
  • P21B7 Ford Transit
  • P21B7 Ford Transit Connect
  • P21B7 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.