P4B20

P4B20 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P4B20 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.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.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford P4B20 Fault Code Meaning :

Ford P4B20 Symptoms :

Ford P4B20 Reasons :

How To Fix Ford P4B20 Trouble Code ?

Which Ford cars have the code P4B20?

  • P4B20 Ford Aerostar
  • P4B20 Ford Bronco
  • P4B20 Ford C-Max
  • P4B20 Ford C-Max Energi
  • P4B20 Ford C-Max Hybrid
  • P4B20 Ford Contour
  • P4B20 Ford Crown Victoria
  • P4B20 Ford EcoSport
  • P4B20 Ford Econoline
  • P4B20 Ford Edge
  • P4B20 Ford Escape
  • P4B20 Ford Escape Hybrid
  • P4B20 Ford Escort
  • P4B20 Ford Everest
  • P4B20 Ford Excursion
  • P4B20 Ford Expedition
  • P4B20 Ford Explorer
  • P4B20 Ford Explorer Sport Trac
  • P4B20 Ford F-150
  • P4B20 Ford F-250
  • P4B20 Ford F-350
  • P4B20 Ford Fiesta
  • P4B20 Ford Flex
  • P4B20 Ford Focus
  • P4B20 Ford Focus Electric
  • P4B20 Ford Freestar
  • P4B20 Ford Freestyle
  • P4B20 Ford Fusion
  • P4B20 Ford Fusion Energi
  • P4B20 Ford Fusion Hybrid
  • P4B20 Ford Fusion Plug-In Hybrid
  • P4B20 Ford GT
  • P4B20 Ford Mustang
  • P4B20 Ford Mustang Mach-E
  • P4B20 Ford Mystique
  • P4B20 Ford Probe
  • P4B20 Ford Ranger
  • P4B20 Ford Taurus
  • P4B20 Ford Taurus X
  • P4B20 Ford Tempo
  • P4B20 Ford Thunderbird
  • P4B20 Ford Transit
  • P4B20 Ford Transit Connect
  • P4B20 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.