P81B9

P81B9 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P81B9 Diagnosis

The output circuits that are powered by VBAT2 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. 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 P81B9 Fault Code Meaning :

Ford P81B9 Symptoms :

Ford P81B9 Reasons :

How To Fix Ford P81B9 Trouble Code ?

Which Ford cars have the code P81B9?

  • P81B9 Ford Aerostar
  • P81B9 Ford Bronco
  • P81B9 Ford C-Max
  • P81B9 Ford C-Max Energi
  • P81B9 Ford C-Max Hybrid
  • P81B9 Ford Contour
  • P81B9 Ford Crown Victoria
  • P81B9 Ford EcoSport
  • P81B9 Ford Econoline
  • P81B9 Ford Edge
  • P81B9 Ford Escape
  • P81B9 Ford Escape Hybrid
  • P81B9 Ford Escort
  • P81B9 Ford Everest
  • P81B9 Ford Excursion
  • P81B9 Ford Expedition
  • P81B9 Ford Explorer
  • P81B9 Ford Explorer Sport Trac
  • P81B9 Ford F-150
  • P81B9 Ford F-250
  • P81B9 Ford F-350
  • P81B9 Ford Fiesta
  • P81B9 Ford Flex
  • P81B9 Ford Focus
  • P81B9 Ford Focus Electric
  • P81B9 Ford Freestar
  • P81B9 Ford Freestyle
  • P81B9 Ford Fusion
  • P81B9 Ford Fusion Energi
  • P81B9 Ford Fusion Hybrid
  • P81B9 Ford Fusion Plug-In Hybrid
  • P81B9 Ford GT
  • P81B9 Ford Mustang
  • P81B9 Ford Mustang Mach-E
  • P81B9 Ford Mystique
  • P81B9 Ford Probe
  • P81B9 Ford Ranger
  • P81B9 Ford Taurus
  • P81B9 Ford Taurus X
  • P81B9 Ford Tempo
  • P81B9 Ford Thunderbird
  • P81B9 Ford Transit
  • P81B9 Ford Transit Connect
  • P81B9 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.