U1921

U1921 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U1921 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford U1921 Fault Code Meaning :

Ford U1921 Symptoms :

Ford U1921 Reasons :

How To Fix Ford U1921 Trouble Code ?

Which Ford cars have the code U1921?

  • U1921 Ford Aerostar
  • U1921 Ford Bronco
  • U1921 Ford C-Max
  • U1921 Ford C-Max Energi
  • U1921 Ford C-Max Hybrid
  • U1921 Ford Contour
  • U1921 Ford Crown Victoria
  • U1921 Ford EcoSport
  • U1921 Ford Econoline
  • U1921 Ford Edge
  • U1921 Ford Escape
  • U1921 Ford Escape Hybrid
  • U1921 Ford Escort
  • U1921 Ford Everest
  • U1921 Ford Excursion
  • U1921 Ford Expedition
  • U1921 Ford Explorer
  • U1921 Ford Explorer Sport Trac
  • U1921 Ford F-150
  • U1921 Ford F-250
  • U1921 Ford F-350
  • U1921 Ford Fiesta
  • U1921 Ford Flex
  • U1921 Ford Focus
  • U1921 Ford Focus Electric
  • U1921 Ford Freestar
  • U1921 Ford Freestyle
  • U1921 Ford Fusion
  • U1921 Ford Fusion Energi
  • U1921 Ford Fusion Hybrid
  • U1921 Ford Fusion Plug-In Hybrid
  • U1921 Ford GT
  • U1921 Ford Mustang
  • U1921 Ford Mustang Mach-E
  • U1921 Ford Mystique
  • U1921 Ford Probe
  • U1921 Ford Ranger
  • U1921 Ford Taurus
  • U1921 Ford Taurus X
  • U1921 Ford Tempo
  • U1921 Ford Thunderbird
  • U1921 Ford Transit
  • U1921 Ford Transit Connect
  • U1921 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.