P491B

P491B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P491B Diagnosis

This fault indicates that the circuit is drawing more current than it is designed to supply, and possibly there is a wiring fault shorting this circuit to ground. The fault remains active until the ignition is turned ON when the fault is no longer present.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 P491B Fault Code Meaning :

Ford P491B Symptoms :

Ford P491B Reasons :

How To Fix Ford P491B Trouble Code ?

Which Ford cars have the code P491B?

  • P491B Ford Aerostar
  • P491B Ford Bronco
  • P491B Ford C-Max
  • P491B Ford C-Max Energi
  • P491B Ford C-Max Hybrid
  • P491B Ford Contour
  • P491B Ford Crown Victoria
  • P491B Ford EcoSport
  • P491B Ford Econoline
  • P491B Ford Edge
  • P491B Ford Escape
  • P491B Ford Escape Hybrid
  • P491B Ford Escort
  • P491B Ford Everest
  • P491B Ford Excursion
  • P491B Ford Expedition
  • P491B Ford Explorer
  • P491B Ford Explorer Sport Trac
  • P491B Ford F-150
  • P491B Ford F-250
  • P491B Ford F-350
  • P491B Ford Fiesta
  • P491B Ford Flex
  • P491B Ford Focus
  • P491B Ford Focus Electric
  • P491B Ford Freestar
  • P491B Ford Freestyle
  • P491B Ford Fusion
  • P491B Ford Fusion Energi
  • P491B Ford Fusion Hybrid
  • P491B Ford Fusion Plug-In Hybrid
  • P491B Ford GT
  • P491B Ford Mustang
  • P491B Ford Mustang Mach-E
  • P491B Ford Mystique
  • P491B Ford Probe
  • P491B Ford Ranger
  • P491B Ford Taurus
  • P491B Ford Taurus X
  • P491B Ford Tempo
  • P491B Ford Thunderbird
  • P491B Ford Transit
  • P491B Ford Transit Connect
  • P491B 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.