P3120

P3120 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3120 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.

Troubleshoot for a wiring short to ground fault on any of the CHM output or BHM output circuits discussed above. The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.

Ford P3120 Fault Code Meaning :

Ford P3120 Symptoms :

Ford P3120 Reasons :

How To Fix Ford P3120 Trouble Code ?

Which Ford cars have the code P3120?

  • P3120 Ford Aerostar
  • P3120 Ford Bronco
  • P3120 Ford C-Max
  • P3120 Ford C-Max Energi
  • P3120 Ford C-Max Hybrid
  • P3120 Ford Contour
  • P3120 Ford Crown Victoria
  • P3120 Ford EcoSport
  • P3120 Ford Econoline
  • P3120 Ford Edge
  • P3120 Ford Escape
  • P3120 Ford Escape Hybrid
  • P3120 Ford Escort
  • P3120 Ford Everest
  • P3120 Ford Excursion
  • P3120 Ford Expedition
  • P3120 Ford Explorer
  • P3120 Ford Explorer Sport Trac
  • P3120 Ford F-150
  • P3120 Ford F-250
  • P3120 Ford F-350
  • P3120 Ford Fiesta
  • P3120 Ford Flex
  • P3120 Ford Focus
  • P3120 Ford Focus Electric
  • P3120 Ford Freestar
  • P3120 Ford Freestyle
  • P3120 Ford Fusion
  • P3120 Ford Fusion Energi
  • P3120 Ford Fusion Hybrid
  • P3120 Ford Fusion Plug-In Hybrid
  • P3120 Ford GT
  • P3120 Ford Mustang
  • P3120 Ford Mustang Mach-E
  • P3120 Ford Mystique
  • P3120 Ford Probe
  • P3120 Ford Ranger
  • P3120 Ford Taurus
  • P3120 Ford Taurus X
  • P3120 Ford Tempo
  • P3120 Ford Thunderbird
  • P3120 Ford Transit
  • P3120 Ford Transit Connect
  • P3120 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.