P491A

P491A Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P491A Diagnosis

The CHM does not suupport PWM type DRLs. The vehicle has a BHM mismatch with the CHM. Replace the CHM with one that is compatible with the BHM.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 P491A Fault Code Meaning :

Ford P491A Symptoms :

Ford P491A Reasons :

How To Fix Ford P491A Trouble Code ?

Which Ford cars have the code P491A?

  • P491A Ford Aerostar
  • P491A Ford Bronco
  • P491A Ford C-Max
  • P491A Ford C-Max Energi
  • P491A Ford C-Max Hybrid
  • P491A Ford Contour
  • P491A Ford Crown Victoria
  • P491A Ford EcoSport
  • P491A Ford Econoline
  • P491A Ford Edge
  • P491A Ford Escape
  • P491A Ford Escape Hybrid
  • P491A Ford Escort
  • P491A Ford Everest
  • P491A Ford Excursion
  • P491A Ford Expedition
  • P491A Ford Explorer
  • P491A Ford Explorer Sport Trac
  • P491A Ford F-150
  • P491A Ford F-250
  • P491A Ford F-350
  • P491A Ford Fiesta
  • P491A Ford Flex
  • P491A Ford Focus
  • P491A Ford Focus Electric
  • P491A Ford Freestar
  • P491A Ford Freestyle
  • P491A Ford Fusion
  • P491A Ford Fusion Energi
  • P491A Ford Fusion Hybrid
  • P491A Ford Fusion Plug-In Hybrid
  • P491A Ford GT
  • P491A Ford Mustang
  • P491A Ford Mustang Mach-E
  • P491A Ford Mystique
  • P491A Ford Probe
  • P491A Ford Ranger
  • P491A Ford Taurus
  • P491A Ford Taurus X
  • P491A Ford Tempo
  • P491A Ford Thunderbird
  • P491A Ford Transit
  • P491A Ford Transit Connect
  • P491A 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.