P5F21

P5F21 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P5F21 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.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford P5F21 Fault Code Meaning :

Ford P5F21 Symptoms :

Ford P5F21 Reasons :

How To Fix Ford P5F21 Trouble Code ?

Which Ford cars have the code P5F21?

  • P5F21 Ford Aerostar
  • P5F21 Ford Bronco
  • P5F21 Ford C-Max
  • P5F21 Ford C-Max Energi
  • P5F21 Ford C-Max Hybrid
  • P5F21 Ford Contour
  • P5F21 Ford Crown Victoria
  • P5F21 Ford EcoSport
  • P5F21 Ford Econoline
  • P5F21 Ford Edge
  • P5F21 Ford Escape
  • P5F21 Ford Escape Hybrid
  • P5F21 Ford Escort
  • P5F21 Ford Everest
  • P5F21 Ford Excursion
  • P5F21 Ford Expedition
  • P5F21 Ford Explorer
  • P5F21 Ford Explorer Sport Trac
  • P5F21 Ford F-150
  • P5F21 Ford F-250
  • P5F21 Ford F-350
  • P5F21 Ford Fiesta
  • P5F21 Ford Flex
  • P5F21 Ford Focus
  • P5F21 Ford Focus Electric
  • P5F21 Ford Freestar
  • P5F21 Ford Freestyle
  • P5F21 Ford Fusion
  • P5F21 Ford Fusion Energi
  • P5F21 Ford Fusion Hybrid
  • P5F21 Ford Fusion Plug-In Hybrid
  • P5F21 Ford GT
  • P5F21 Ford Mustang
  • P5F21 Ford Mustang Mach-E
  • P5F21 Ford Mystique
  • P5F21 Ford Probe
  • P5F21 Ford Ranger
  • P5F21 Ford Taurus
  • P5F21 Ford Taurus X
  • P5F21 Ford Tempo
  • P5F21 Ford Thunderbird
  • P5F21 Ford Transit
  • P5F21 Ford Transit Connect
  • P5F21 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.