C1646

C1646 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

C1646 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 C1646 Fault Code Meaning :

Ford C1646 Symptoms :

Ford C1646 Reasons :

How To Fix Ford C1646 Trouble Code ?

Which Ford cars have the code C1646?

  • C1646 Ford Aerostar
  • C1646 Ford Bronco
  • C1646 Ford C-Max
  • C1646 Ford C-Max Energi
  • C1646 Ford C-Max Hybrid
  • C1646 Ford Contour
  • C1646 Ford Crown Victoria
  • C1646 Ford EcoSport
  • C1646 Ford Econoline
  • C1646 Ford Edge
  • C1646 Ford Escape
  • C1646 Ford Escape Hybrid
  • C1646 Ford Escort
  • C1646 Ford Everest
  • C1646 Ford Excursion
  • C1646 Ford Expedition
  • C1646 Ford Explorer
  • C1646 Ford Explorer Sport Trac
  • C1646 Ford F-150
  • C1646 Ford F-250
  • C1646 Ford F-350
  • C1646 Ford Fiesta
  • C1646 Ford Flex
  • C1646 Ford Focus
  • C1646 Ford Focus Electric
  • C1646 Ford Freestar
  • C1646 Ford Freestyle
  • C1646 Ford Fusion
  • C1646 Ford Fusion Energi
  • C1646 Ford Fusion Hybrid
  • C1646 Ford Fusion Plug-In Hybrid
  • C1646 Ford GT
  • C1646 Ford Mustang
  • C1646 Ford Mustang Mach-E
  • C1646 Ford Mystique
  • C1646 Ford Probe
  • C1646 Ford Ranger
  • C1646 Ford Taurus
  • C1646 Ford Taurus X
  • C1646 Ford Tempo
  • C1646 Ford Thunderbird
  • C1646 Ford Transit
  • C1646 Ford Transit Connect
  • C1646 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.