P438A

P438A Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P438A Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.The position information for the switch becomes Not Available. Remove the duplicate Smart Switch, then use ServiceLink to verify that the correct Smart Switches are configured for the vehicle.

A comparison of pressures from all sensors is made. The smallest difference between the three is determined and a reference pressure is calculated. The Barometric pressure sensor value is compared to the reference value and if the difference is above the threshold a DTC is reported.

Ford P438A Fault Code Meaning :

Ford P438A Symptoms :

Ford P438A Reasons :

How To Fix Ford P438A Trouble Code ?

Which Ford cars have the code P438A?

  • P438A Ford Aerostar
  • P438A Ford Bronco
  • P438A Ford C-Max
  • P438A Ford C-Max Energi
  • P438A Ford C-Max Hybrid
  • P438A Ford Contour
  • P438A Ford Crown Victoria
  • P438A Ford EcoSport
  • P438A Ford Econoline
  • P438A Ford Edge
  • P438A Ford Escape
  • P438A Ford Escape Hybrid
  • P438A Ford Escort
  • P438A Ford Everest
  • P438A Ford Excursion
  • P438A Ford Expedition
  • P438A Ford Explorer
  • P438A Ford Explorer Sport Trac
  • P438A Ford F-150
  • P438A Ford F-250
  • P438A Ford F-350
  • P438A Ford Fiesta
  • P438A Ford Flex
  • P438A Ford Focus
  • P438A Ford Focus Electric
  • P438A Ford Freestar
  • P438A Ford Freestyle
  • P438A Ford Fusion
  • P438A Ford Fusion Energi
  • P438A Ford Fusion Hybrid
  • P438A Ford Fusion Plug-In Hybrid
  • P438A Ford GT
  • P438A Ford Mustang
  • P438A Ford Mustang Mach-E
  • P438A Ford Mystique
  • P438A Ford Probe
  • P438A Ford Ranger
  • P438A Ford Taurus
  • P438A Ford Taurus X
  • P438A Ford Tempo
  • P438A Ford Thunderbird
  • P438A Ford Transit
  • P438A Ford Transit Connect
  • P438A 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.