U1851

U1851 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U1851 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 U1851 Fault Code Meaning :

Ford U1851 Symptoms :

Ford U1851 Reasons :

How To Fix Ford U1851 Trouble Code ?

Which Ford cars have the code U1851?

  • U1851 Ford Aerostar
  • U1851 Ford Bronco
  • U1851 Ford C-Max
  • U1851 Ford C-Max Energi
  • U1851 Ford C-Max Hybrid
  • U1851 Ford Contour
  • U1851 Ford Crown Victoria
  • U1851 Ford EcoSport
  • U1851 Ford Econoline
  • U1851 Ford Edge
  • U1851 Ford Escape
  • U1851 Ford Escape Hybrid
  • U1851 Ford Escort
  • U1851 Ford Everest
  • U1851 Ford Excursion
  • U1851 Ford Expedition
  • U1851 Ford Explorer
  • U1851 Ford Explorer Sport Trac
  • U1851 Ford F-150
  • U1851 Ford F-250
  • U1851 Ford F-350
  • U1851 Ford Fiesta
  • U1851 Ford Flex
  • U1851 Ford Focus
  • U1851 Ford Focus Electric
  • U1851 Ford Freestar
  • U1851 Ford Freestyle
  • U1851 Ford Fusion
  • U1851 Ford Fusion Energi
  • U1851 Ford Fusion Hybrid
  • U1851 Ford Fusion Plug-In Hybrid
  • U1851 Ford GT
  • U1851 Ford Mustang
  • U1851 Ford Mustang Mach-E
  • U1851 Ford Mystique
  • U1851 Ford Probe
  • U1851 Ford Ranger
  • U1851 Ford Taurus
  • U1851 Ford Taurus X
  • U1851 Ford Tempo
  • U1851 Ford Thunderbird
  • U1851 Ford Transit
  • U1851 Ford Transit Connect
  • U1851 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.