B1643

B1643 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B1643 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 B1643 Fault Code Meaning :

Ford B1643 Symptoms :

Ford B1643 Reasons :

How To Fix Ford B1643 Trouble Code ?

Which Ford cars have the code B1643?

  • B1643 Ford Aerostar
  • B1643 Ford Bronco
  • B1643 Ford C-Max
  • B1643 Ford C-Max Energi
  • B1643 Ford C-Max Hybrid
  • B1643 Ford Contour
  • B1643 Ford Crown Victoria
  • B1643 Ford EcoSport
  • B1643 Ford Econoline
  • B1643 Ford Edge
  • B1643 Ford Escape
  • B1643 Ford Escape Hybrid
  • B1643 Ford Escort
  • B1643 Ford Everest
  • B1643 Ford Excursion
  • B1643 Ford Expedition
  • B1643 Ford Explorer
  • B1643 Ford Explorer Sport Trac
  • B1643 Ford F-150
  • B1643 Ford F-250
  • B1643 Ford F-350
  • B1643 Ford Fiesta
  • B1643 Ford Flex
  • B1643 Ford Focus
  • B1643 Ford Focus Electric
  • B1643 Ford Freestar
  • B1643 Ford Freestyle
  • B1643 Ford Fusion
  • B1643 Ford Fusion Energi
  • B1643 Ford Fusion Hybrid
  • B1643 Ford Fusion Plug-In Hybrid
  • B1643 Ford GT
  • B1643 Ford Mustang
  • B1643 Ford Mustang Mach-E
  • B1643 Ford Mystique
  • B1643 Ford Probe
  • B1643 Ford Ranger
  • B1643 Ford Taurus
  • B1643 Ford Taurus X
  • B1643 Ford Tempo
  • B1643 Ford Thunderbird
  • B1643 Ford Transit
  • B1643 Ford Transit Connect
  • B1643 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.