P856A

P856A Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P856A 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 ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.

The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.

Ford P856A Fault Code Meaning :

Ford P856A Symptoms :

Ford P856A Reasons :

How To Fix Ford P856A Trouble Code ?

Which Ford cars have the code P856A?

  • P856A Ford Aerostar
  • P856A Ford Bronco
  • P856A Ford C-Max
  • P856A Ford C-Max Energi
  • P856A Ford C-Max Hybrid
  • P856A Ford Contour
  • P856A Ford Crown Victoria
  • P856A Ford EcoSport
  • P856A Ford Econoline
  • P856A Ford Edge
  • P856A Ford Escape
  • P856A Ford Escape Hybrid
  • P856A Ford Escort
  • P856A Ford Everest
  • P856A Ford Excursion
  • P856A Ford Expedition
  • P856A Ford Explorer
  • P856A Ford Explorer Sport Trac
  • P856A Ford F-150
  • P856A Ford F-250
  • P856A Ford F-350
  • P856A Ford Fiesta
  • P856A Ford Flex
  • P856A Ford Focus
  • P856A Ford Focus Electric
  • P856A Ford Freestar
  • P856A Ford Freestyle
  • P856A Ford Fusion
  • P856A Ford Fusion Energi
  • P856A Ford Fusion Hybrid
  • P856A Ford Fusion Plug-In Hybrid
  • P856A Ford GT
  • P856A Ford Mustang
  • P856A Ford Mustang Mach-E
  • P856A Ford Mystique
  • P856A Ford Probe
  • P856A Ford Ranger
  • P856A Ford Taurus
  • P856A Ford Taurus X
  • P856A Ford Tempo
  • P856A Ford Thunderbird
  • P856A Ford Transit
  • P856A Ford Transit Connect
  • P856A 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.