U3646

U3646 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U3646 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.

Engine starting is disabled and other optional functions may be interrupted until the fault is corrected and the ignition switch is cycled.

Ford U3646 Fault Code Meaning :

Ford U3646 Symptoms :

Ford U3646 Reasons :

How To Fix Ford U3646 Trouble Code ?

Which Ford cars have the code U3646?

  • U3646 Ford Aerostar
  • U3646 Ford Bronco
  • U3646 Ford C-Max
  • U3646 Ford C-Max Energi
  • U3646 Ford C-Max Hybrid
  • U3646 Ford Contour
  • U3646 Ford Crown Victoria
  • U3646 Ford EcoSport
  • U3646 Ford Econoline
  • U3646 Ford Edge
  • U3646 Ford Escape
  • U3646 Ford Escape Hybrid
  • U3646 Ford Escort
  • U3646 Ford Everest
  • U3646 Ford Excursion
  • U3646 Ford Expedition
  • U3646 Ford Explorer
  • U3646 Ford Explorer Sport Trac
  • U3646 Ford F-150
  • U3646 Ford F-250
  • U3646 Ford F-350
  • U3646 Ford Fiesta
  • U3646 Ford Flex
  • U3646 Ford Focus
  • U3646 Ford Focus Electric
  • U3646 Ford Freestar
  • U3646 Ford Freestyle
  • U3646 Ford Fusion
  • U3646 Ford Fusion Energi
  • U3646 Ford Fusion Hybrid
  • U3646 Ford Fusion Plug-In Hybrid
  • U3646 Ford GT
  • U3646 Ford Mustang
  • U3646 Ford Mustang Mach-E
  • U3646 Ford Mystique
  • U3646 Ford Probe
  • U3646 Ford Ranger
  • U3646 Ford Taurus
  • U3646 Ford Taurus X
  • U3646 Ford Tempo
  • U3646 Ford Thunderbird
  • U3646 Ford Transit
  • U3646 Ford Transit Connect
  • U3646 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.