P2840

P2840 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P2840 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 2 air solenoid fault, and for air pressure switch short circuit fault.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.

Ford P2840 Fault Code Meaning :

Ford P2840 Symptoms :

Ford P2840 Reasons :

How To Fix Ford P2840 Trouble Code ?

Which Ford cars have the code P2840?

  • P2840 Ford Aerostar
  • P2840 Ford Bronco
  • P2840 Ford C-Max
  • P2840 Ford C-Max Energi
  • P2840 Ford C-Max Hybrid
  • P2840 Ford Contour
  • P2840 Ford Crown Victoria
  • P2840 Ford EcoSport
  • P2840 Ford Econoline
  • P2840 Ford Edge
  • P2840 Ford Escape
  • P2840 Ford Escape Hybrid
  • P2840 Ford Escort
  • P2840 Ford Everest
  • P2840 Ford Excursion
  • P2840 Ford Expedition
  • P2840 Ford Explorer
  • P2840 Ford Explorer Sport Trac
  • P2840 Ford F-150
  • P2840 Ford F-250
  • P2840 Ford F-350
  • P2840 Ford Fiesta
  • P2840 Ford Flex
  • P2840 Ford Focus
  • P2840 Ford Focus Electric
  • P2840 Ford Freestar
  • P2840 Ford Freestyle
  • P2840 Ford Fusion
  • P2840 Ford Fusion Energi
  • P2840 Ford Fusion Hybrid
  • P2840 Ford Fusion Plug-In Hybrid
  • P2840 Ford GT
  • P2840 Ford Mustang
  • P2840 Ford Mustang Mach-E
  • P2840 Ford Mystique
  • P2840 Ford Probe
  • P2840 Ford Ranger
  • P2840 Ford Taurus
  • P2840 Ford Taurus X
  • P2840 Ford Tempo
  • P2840 Ford Thunderbird
  • P2840 Ford Transit
  • P2840 Ford Transit Connect
  • P2840 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.