P858B

P858B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P858B 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.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 P858B Fault Code Meaning :

Ford P858B Symptoms :

Ford P858B Reasons :

How To Fix Ford P858B Trouble Code ?

Which Ford cars have the code P858B?

  • P858B Ford Aerostar
  • P858B Ford Bronco
  • P858B Ford C-Max
  • P858B Ford C-Max Energi
  • P858B Ford C-Max Hybrid
  • P858B Ford Contour
  • P858B Ford Crown Victoria
  • P858B Ford EcoSport
  • P858B Ford Econoline
  • P858B Ford Edge
  • P858B Ford Escape
  • P858B Ford Escape Hybrid
  • P858B Ford Escort
  • P858B Ford Everest
  • P858B Ford Excursion
  • P858B Ford Expedition
  • P858B Ford Explorer
  • P858B Ford Explorer Sport Trac
  • P858B Ford F-150
  • P858B Ford F-250
  • P858B Ford F-350
  • P858B Ford Fiesta
  • P858B Ford Flex
  • P858B Ford Focus
  • P858B Ford Focus Electric
  • P858B Ford Freestar
  • P858B Ford Freestyle
  • P858B Ford Fusion
  • P858B Ford Fusion Energi
  • P858B Ford Fusion Hybrid
  • P858B Ford Fusion Plug-In Hybrid
  • P858B Ford GT
  • P858B Ford Mustang
  • P858B Ford Mustang Mach-E
  • P858B Ford Mystique
  • P858B Ford Probe
  • P858B Ford Ranger
  • P858B Ford Taurus
  • P858B Ford Taurus X
  • P858B Ford Tempo
  • P858B Ford Thunderbird
  • P858B Ford Transit
  • P858B Ford Transit Connect
  • P858B 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.