P3B81

P3B81 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P3B81 Diagnosis

The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short 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 P3B81 Fault Code Meaning :

Ford P3B81 Symptoms :

Ford P3B81 Reasons :

How To Fix Ford P3B81 Trouble Code ?

Which Ford cars have the code P3B81?

  • P3B81 Ford Aerostar
  • P3B81 Ford Bronco
  • P3B81 Ford C-Max
  • P3B81 Ford C-Max Energi
  • P3B81 Ford C-Max Hybrid
  • P3B81 Ford Contour
  • P3B81 Ford Crown Victoria
  • P3B81 Ford EcoSport
  • P3B81 Ford Econoline
  • P3B81 Ford Edge
  • P3B81 Ford Escape
  • P3B81 Ford Escape Hybrid
  • P3B81 Ford Escort
  • P3B81 Ford Everest
  • P3B81 Ford Excursion
  • P3B81 Ford Expedition
  • P3B81 Ford Explorer
  • P3B81 Ford Explorer Sport Trac
  • P3B81 Ford F-150
  • P3B81 Ford F-250
  • P3B81 Ford F-350
  • P3B81 Ford Fiesta
  • P3B81 Ford Flex
  • P3B81 Ford Focus
  • P3B81 Ford Focus Electric
  • P3B81 Ford Freestar
  • P3B81 Ford Freestyle
  • P3B81 Ford Fusion
  • P3B81 Ford Fusion Energi
  • P3B81 Ford Fusion Hybrid
  • P3B81 Ford Fusion Plug-In Hybrid
  • P3B81 Ford GT
  • P3B81 Ford Mustang
  • P3B81 Ford Mustang Mach-E
  • P3B81 Ford Mystique
  • P3B81 Ford Probe
  • P3B81 Ford Ranger
  • P3B81 Ford Taurus
  • P3B81 Ford Taurus X
  • P3B81 Ford Tempo
  • P3B81 Ford Thunderbird
  • P3B81 Ford Transit
  • P3B81 Ford Transit Connect
  • P3B81 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.