U04A4

U04A4 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U04A4 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.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 U04A4 Fault Code Meaning :

Ford U04A4 Symptoms :

Ford U04A4 Reasons :

How To Fix Ford U04A4 Trouble Code ?

Which Ford cars have the code U04A4?

  • U04A4 Ford Aerostar
  • U04A4 Ford Bronco
  • U04A4 Ford C-Max
  • U04A4 Ford C-Max Energi
  • U04A4 Ford C-Max Hybrid
  • U04A4 Ford Contour
  • U04A4 Ford Crown Victoria
  • U04A4 Ford EcoSport
  • U04A4 Ford Econoline
  • U04A4 Ford Edge
  • U04A4 Ford Escape
  • U04A4 Ford Escape Hybrid
  • U04A4 Ford Escort
  • U04A4 Ford Everest
  • U04A4 Ford Excursion
  • U04A4 Ford Expedition
  • U04A4 Ford Explorer
  • U04A4 Ford Explorer Sport Trac
  • U04A4 Ford F-150
  • U04A4 Ford F-250
  • U04A4 Ford F-350
  • U04A4 Ford Fiesta
  • U04A4 Ford Flex
  • U04A4 Ford Focus
  • U04A4 Ford Focus Electric
  • U04A4 Ford Freestar
  • U04A4 Ford Freestyle
  • U04A4 Ford Fusion
  • U04A4 Ford Fusion Energi
  • U04A4 Ford Fusion Hybrid
  • U04A4 Ford Fusion Plug-In Hybrid
  • U04A4 Ford GT
  • U04A4 Ford Mustang
  • U04A4 Ford Mustang Mach-E
  • U04A4 Ford Mystique
  • U04A4 Ford Probe
  • U04A4 Ford Ranger
  • U04A4 Ford Taurus
  • U04A4 Ford Taurus X
  • U04A4 Ford Tempo
  • U04A4 Ford Thunderbird
  • U04A4 Ford Transit
  • U04A4 Ford Transit Connect
  • U04A4 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.