P438D

P438D Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P438D Diagnosis

The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for an open circuit fault.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 P438D Fault Code Meaning :

Ford P438D Symptoms :

Ford P438D Reasons :

How To Fix Ford P438D Trouble Code ?

Which Ford cars have the code P438D?

  • P438D Ford Aerostar
  • P438D Ford Bronco
  • P438D Ford C-Max
  • P438D Ford C-Max Energi
  • P438D Ford C-Max Hybrid
  • P438D Ford Contour
  • P438D Ford Crown Victoria
  • P438D Ford EcoSport
  • P438D Ford Econoline
  • P438D Ford Edge
  • P438D Ford Escape
  • P438D Ford Escape Hybrid
  • P438D Ford Escort
  • P438D Ford Everest
  • P438D Ford Excursion
  • P438D Ford Expedition
  • P438D Ford Explorer
  • P438D Ford Explorer Sport Trac
  • P438D Ford F-150
  • P438D Ford F-250
  • P438D Ford F-350
  • P438D Ford Fiesta
  • P438D Ford Flex
  • P438D Ford Focus
  • P438D Ford Focus Electric
  • P438D Ford Freestar
  • P438D Ford Freestyle
  • P438D Ford Fusion
  • P438D Ford Fusion Energi
  • P438D Ford Fusion Hybrid
  • P438D Ford Fusion Plug-In Hybrid
  • P438D Ford GT
  • P438D Ford Mustang
  • P438D Ford Mustang Mach-E
  • P438D Ford Mystique
  • P438D Ford Probe
  • P438D Ford Ranger
  • P438D Ford Taurus
  • P438D Ford Taurus X
  • P438D Ford Tempo
  • P438D Ford Thunderbird
  • P438D Ford Transit
  • P438D Ford Transit Connect
  • P438D 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.