P1857

P1857 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1857 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.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.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford P1857 Fault Code Meaning :

Ford P1857 Symptoms :

Ford P1857 Reasons :

How To Fix Ford P1857 Trouble Code ?

Which Ford cars have the code P1857?

  • P1857 Ford Aerostar
  • P1857 Ford Bronco
  • P1857 Ford C-Max
  • P1857 Ford C-Max Energi
  • P1857 Ford C-Max Hybrid
  • P1857 Ford Contour
  • P1857 Ford Crown Victoria
  • P1857 Ford EcoSport
  • P1857 Ford Econoline
  • P1857 Ford Edge
  • P1857 Ford Escape
  • P1857 Ford Escape Hybrid
  • P1857 Ford Escort
  • P1857 Ford Everest
  • P1857 Ford Excursion
  • P1857 Ford Expedition
  • P1857 Ford Explorer
  • P1857 Ford Explorer Sport Trac
  • P1857 Ford F-150
  • P1857 Ford F-250
  • P1857 Ford F-350
  • P1857 Ford Fiesta
  • P1857 Ford Flex
  • P1857 Ford Focus
  • P1857 Ford Focus Electric
  • P1857 Ford Freestar
  • P1857 Ford Freestyle
  • P1857 Ford Fusion
  • P1857 Ford Fusion Energi
  • P1857 Ford Fusion Hybrid
  • P1857 Ford Fusion Plug-In Hybrid
  • P1857 Ford GT
  • P1857 Ford Mustang
  • P1857 Ford Mustang Mach-E
  • P1857 Ford Mystique
  • P1857 Ford Probe
  • P1857 Ford Ranger
  • P1857 Ford Taurus
  • P1857 Ford Taurus X
  • P1857 Ford Tempo
  • P1857 Ford Thunderbird
  • P1857 Ford Transit
  • P1857 Ford Transit Connect
  • P1857 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.