U1638

U1638 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U1638 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 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 U1638 Fault Code Meaning :

Ford U1638 Symptoms :

Ford U1638 Reasons :

How To Fix Ford U1638 Trouble Code ?

Which Ford cars have the code U1638?

  • U1638 Ford Aerostar
  • U1638 Ford Bronco
  • U1638 Ford C-Max
  • U1638 Ford C-Max Energi
  • U1638 Ford C-Max Hybrid
  • U1638 Ford Contour
  • U1638 Ford Crown Victoria
  • U1638 Ford EcoSport
  • U1638 Ford Econoline
  • U1638 Ford Edge
  • U1638 Ford Escape
  • U1638 Ford Escape Hybrid
  • U1638 Ford Escort
  • U1638 Ford Everest
  • U1638 Ford Excursion
  • U1638 Ford Expedition
  • U1638 Ford Explorer
  • U1638 Ford Explorer Sport Trac
  • U1638 Ford F-150
  • U1638 Ford F-250
  • U1638 Ford F-350
  • U1638 Ford Fiesta
  • U1638 Ford Flex
  • U1638 Ford Focus
  • U1638 Ford Focus Electric
  • U1638 Ford Freestar
  • U1638 Ford Freestyle
  • U1638 Ford Fusion
  • U1638 Ford Fusion Energi
  • U1638 Ford Fusion Hybrid
  • U1638 Ford Fusion Plug-In Hybrid
  • U1638 Ford GT
  • U1638 Ford Mustang
  • U1638 Ford Mustang Mach-E
  • U1638 Ford Mystique
  • U1638 Ford Probe
  • U1638 Ford Ranger
  • U1638 Ford Taurus
  • U1638 Ford Taurus X
  • U1638 Ford Tempo
  • U1638 Ford Thunderbird
  • U1638 Ford Transit
  • U1638 Ford Transit Connect
  • U1638 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.