U0138

U0138 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U0138 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 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 U0138 Fault Code Meaning :

Ford U0138 Symptoms :

Ford U0138 Reasons :

How To Fix Ford U0138 Trouble Code ?

Which Ford cars have the code U0138?

  • U0138 Ford Aerostar
  • U0138 Ford Bronco
  • U0138 Ford C-Max
  • U0138 Ford C-Max Energi
  • U0138 Ford C-Max Hybrid
  • U0138 Ford Contour
  • U0138 Ford Crown Victoria
  • U0138 Ford EcoSport
  • U0138 Ford Econoline
  • U0138 Ford Edge
  • U0138 Ford Escape
  • U0138 Ford Escape Hybrid
  • U0138 Ford Escort
  • U0138 Ford Everest
  • U0138 Ford Excursion
  • U0138 Ford Expedition
  • U0138 Ford Explorer
  • U0138 Ford Explorer Sport Trac
  • U0138 Ford F-150
  • U0138 Ford F-250
  • U0138 Ford F-350
  • U0138 Ford Fiesta
  • U0138 Ford Flex
  • U0138 Ford Focus
  • U0138 Ford Focus Electric
  • U0138 Ford Freestar
  • U0138 Ford Freestyle
  • U0138 Ford Fusion
  • U0138 Ford Fusion Energi
  • U0138 Ford Fusion Hybrid
  • U0138 Ford Fusion Plug-In Hybrid
  • U0138 Ford GT
  • U0138 Ford Mustang
  • U0138 Ford Mustang Mach-E
  • U0138 Ford Mystique
  • U0138 Ford Probe
  • U0138 Ford Ranger
  • U0138 Ford Taurus
  • U0138 Ford Taurus X
  • U0138 Ford Tempo
  • U0138 Ford Thunderbird
  • U0138 Ford Transit
  • U0138 Ford Transit Connect
  • U0138 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.