U121E

U121E Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U121E Diagnosis

The CHM does not suupport PWM type DRLs. The vehicle has a BHM mismatch with the CHM. Replace the CHM with one that is compatible with the BHM.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 FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford U121E Fault Code Meaning :

Ford U121E Symptoms :

Ford U121E Reasons :

How To Fix Ford U121E Trouble Code ?

Which Ford cars have the code U121E?

  • U121E Ford Aerostar
  • U121E Ford Bronco
  • U121E Ford C-Max
  • U121E Ford C-Max Energi
  • U121E Ford C-Max Hybrid
  • U121E Ford Contour
  • U121E Ford Crown Victoria
  • U121E Ford EcoSport
  • U121E Ford Econoline
  • U121E Ford Edge
  • U121E Ford Escape
  • U121E Ford Escape Hybrid
  • U121E Ford Escort
  • U121E Ford Everest
  • U121E Ford Excursion
  • U121E Ford Expedition
  • U121E Ford Explorer
  • U121E Ford Explorer Sport Trac
  • U121E Ford F-150
  • U121E Ford F-250
  • U121E Ford F-350
  • U121E Ford Fiesta
  • U121E Ford Flex
  • U121E Ford Focus
  • U121E Ford Focus Electric
  • U121E Ford Freestar
  • U121E Ford Freestyle
  • U121E Ford Fusion
  • U121E Ford Fusion Energi
  • U121E Ford Fusion Hybrid
  • U121E Ford Fusion Plug-In Hybrid
  • U121E Ford GT
  • U121E Ford Mustang
  • U121E Ford Mustang Mach-E
  • U121E Ford Mystique
  • U121E Ford Probe
  • U121E Ford Ranger
  • U121E Ford Taurus
  • U121E Ford Taurus X
  • U121E Ford Tempo
  • U121E Ford Thunderbird
  • U121E Ford Transit
  • U121E Ford Transit Connect
  • U121E 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.