P1138

P1138 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1138 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 P1138 Fault Code Meaning :

Ford P1138 Symptoms :

Ford P1138 Reasons :

How To Fix Ford P1138 Trouble Code ?

Which Ford cars have the code P1138?

  • P1138 Ford Aerostar
  • P1138 Ford Bronco
  • P1138 Ford C-Max
  • P1138 Ford C-Max Energi
  • P1138 Ford C-Max Hybrid
  • P1138 Ford Contour
  • P1138 Ford Crown Victoria
  • P1138 Ford EcoSport
  • P1138 Ford Econoline
  • P1138 Ford Edge
  • P1138 Ford Escape
  • P1138 Ford Escape Hybrid
  • P1138 Ford Escort
  • P1138 Ford Everest
  • P1138 Ford Excursion
  • P1138 Ford Expedition
  • P1138 Ford Explorer
  • P1138 Ford Explorer Sport Trac
  • P1138 Ford F-150
  • P1138 Ford F-250
  • P1138 Ford F-350
  • P1138 Ford Fiesta
  • P1138 Ford Flex
  • P1138 Ford Focus
  • P1138 Ford Focus Electric
  • P1138 Ford Freestar
  • P1138 Ford Freestyle
  • P1138 Ford Fusion
  • P1138 Ford Fusion Energi
  • P1138 Ford Fusion Hybrid
  • P1138 Ford Fusion Plug-In Hybrid
  • P1138 Ford GT
  • P1138 Ford Mustang
  • P1138 Ford Mustang Mach-E
  • P1138 Ford Mystique
  • P1138 Ford Probe
  • P1138 Ford Ranger
  • P1138 Ford Taurus
  • P1138 Ford Taurus X
  • P1138 Ford Tempo
  • P1138 Ford Thunderbird
  • P1138 Ford Transit
  • P1138 Ford Transit Connect
  • P1138 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.