P121D

P121D Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P121D Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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 P121D Fault Code Meaning :

Ford P121D Symptoms :

Ford P121D Reasons :

How To Fix Ford P121D Trouble Code ?

Which Ford cars have the code P121D?

  • P121D Ford Aerostar
  • P121D Ford Bronco
  • P121D Ford C-Max
  • P121D Ford C-Max Energi
  • P121D Ford C-Max Hybrid
  • P121D Ford Contour
  • P121D Ford Crown Victoria
  • P121D Ford EcoSport
  • P121D Ford Econoline
  • P121D Ford Edge
  • P121D Ford Escape
  • P121D Ford Escape Hybrid
  • P121D Ford Escort
  • P121D Ford Everest
  • P121D Ford Excursion
  • P121D Ford Expedition
  • P121D Ford Explorer
  • P121D Ford Explorer Sport Trac
  • P121D Ford F-150
  • P121D Ford F-250
  • P121D Ford F-350
  • P121D Ford Fiesta
  • P121D Ford Flex
  • P121D Ford Focus
  • P121D Ford Focus Electric
  • P121D Ford Freestar
  • P121D Ford Freestyle
  • P121D Ford Fusion
  • P121D Ford Fusion Energi
  • P121D Ford Fusion Hybrid
  • P121D Ford Fusion Plug-In Hybrid
  • P121D Ford GT
  • P121D Ford Mustang
  • P121D Ford Mustang Mach-E
  • P121D Ford Mystique
  • P121D Ford Probe
  • P121D Ford Ranger
  • P121D Ford Taurus
  • P121D Ford Taurus X
  • P121D Ford Tempo
  • P121D Ford Thunderbird
  • P121D Ford Transit
  • P121D Ford Transit Connect
  • P121D 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.