C1638

C1638 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C1638 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.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 disconnected pipe malfunction is detected when the ventilator tube from the valve cover to the separator device is disconnected resulting in a pressure below the lower limit.Both of these malfunctions will result in a DTC being set.

Ford C1638 Fault Code Meaning :

Ford C1638 Symptoms :

Ford C1638 Reasons :

How To Fix Ford C1638 Trouble Code ?

Which Ford cars have the code C1638?

  • C1638 Ford Aerostar
  • C1638 Ford Bronco
  • C1638 Ford C-Max
  • C1638 Ford C-Max Energi
  • C1638 Ford C-Max Hybrid
  • C1638 Ford Contour
  • C1638 Ford Crown Victoria
  • C1638 Ford EcoSport
  • C1638 Ford Econoline
  • C1638 Ford Edge
  • C1638 Ford Escape
  • C1638 Ford Escape Hybrid
  • C1638 Ford Escort
  • C1638 Ford Everest
  • C1638 Ford Excursion
  • C1638 Ford Expedition
  • C1638 Ford Explorer
  • C1638 Ford Explorer Sport Trac
  • C1638 Ford F-150
  • C1638 Ford F-250
  • C1638 Ford F-350
  • C1638 Ford Fiesta
  • C1638 Ford Flex
  • C1638 Ford Focus
  • C1638 Ford Focus Electric
  • C1638 Ford Freestar
  • C1638 Ford Freestyle
  • C1638 Ford Fusion
  • C1638 Ford Fusion Energi
  • C1638 Ford Fusion Hybrid
  • C1638 Ford Fusion Plug-In Hybrid
  • C1638 Ford GT
  • C1638 Ford Mustang
  • C1638 Ford Mustang Mach-E
  • C1638 Ford Mystique
  • C1638 Ford Probe
  • C1638 Ford Ranger
  • C1638 Ford Taurus
  • C1638 Ford Taurus X
  • C1638 Ford Tempo
  • C1638 Ford Thunderbird
  • C1638 Ford Transit
  • C1638 Ford Transit Connect
  • C1638 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.