U121A

U121A Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U121A Diagnosis

The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short circuit fault.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded OFF.

The top-of-clutch switch and bottom-of-clutch switch are both measured as closed at the same time. Troubleshoot for clutch switch shorted, or for a wiring fault between the clutch switch and the BHM.

Ford U121A Fault Code Meaning :

Ford U121A Symptoms :

Ford U121A Reasons :

How To Fix Ford U121A Trouble Code ?

Which Ford cars have the code U121A?

  • U121A Ford Aerostar
  • U121A Ford Bronco
  • U121A Ford C-Max
  • U121A Ford C-Max Energi
  • U121A Ford C-Max Hybrid
  • U121A Ford Contour
  • U121A Ford Crown Victoria
  • U121A Ford EcoSport
  • U121A Ford Econoline
  • U121A Ford Edge
  • U121A Ford Escape
  • U121A Ford Escape Hybrid
  • U121A Ford Escort
  • U121A Ford Everest
  • U121A Ford Excursion
  • U121A Ford Expedition
  • U121A Ford Explorer
  • U121A Ford Explorer Sport Trac
  • U121A Ford F-150
  • U121A Ford F-250
  • U121A Ford F-350
  • U121A Ford Fiesta
  • U121A Ford Flex
  • U121A Ford Focus
  • U121A Ford Focus Electric
  • U121A Ford Freestar
  • U121A Ford Freestyle
  • U121A Ford Fusion
  • U121A Ford Fusion Energi
  • U121A Ford Fusion Hybrid
  • U121A Ford Fusion Plug-In Hybrid
  • U121A Ford GT
  • U121A Ford Mustang
  • U121A Ford Mustang Mach-E
  • U121A Ford Mystique
  • U121A Ford Probe
  • U121A Ford Ranger
  • U121A Ford Taurus
  • U121A Ford Taurus X
  • U121A Ford Tempo
  • U121A Ford Thunderbird
  • U121A Ford Transit
  • U121A Ford Transit Connect
  • U121A 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.