B3121

B3121 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3121 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 wiper switch is in the OFF position and the BHM park input from the wiper motor is not in park position. Troubleshoot for a wiper motor park switch circuit fault.

When the engine is in idle or in low engine speed and torque condition, the differential pressure over the DPF is expected to be close to zero. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford B3121 Fault Code Meaning :

Ford B3121 Symptoms :

Ford B3121 Reasons :

How To Fix Ford B3121 Trouble Code ?

Which Ford cars have the code B3121?

  • B3121 Ford Aerostar
  • B3121 Ford Bronco
  • B3121 Ford C-Max
  • B3121 Ford C-Max Energi
  • B3121 Ford C-Max Hybrid
  • B3121 Ford Contour
  • B3121 Ford Crown Victoria
  • B3121 Ford EcoSport
  • B3121 Ford Econoline
  • B3121 Ford Edge
  • B3121 Ford Escape
  • B3121 Ford Escape Hybrid
  • B3121 Ford Escort
  • B3121 Ford Everest
  • B3121 Ford Excursion
  • B3121 Ford Expedition
  • B3121 Ford Explorer
  • B3121 Ford Explorer Sport Trac
  • B3121 Ford F-150
  • B3121 Ford F-250
  • B3121 Ford F-350
  • B3121 Ford Fiesta
  • B3121 Ford Flex
  • B3121 Ford Focus
  • B3121 Ford Focus Electric
  • B3121 Ford Freestar
  • B3121 Ford Freestyle
  • B3121 Ford Fusion
  • B3121 Ford Fusion Energi
  • B3121 Ford Fusion Hybrid
  • B3121 Ford Fusion Plug-In Hybrid
  • B3121 Ford GT
  • B3121 Ford Mustang
  • B3121 Ford Mustang Mach-E
  • B3121 Ford Mystique
  • B3121 Ford Probe
  • B3121 Ford Ranger
  • B3121 Ford Taurus
  • B3121 Ford Taurus X
  • B3121 Ford Tempo
  • B3121 Ford Thunderbird
  • B3121 Ford Transit
  • B3121 Ford Transit Connect
  • B3121 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.