P1491

P1491 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P1491 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.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded OFF.

The disconnected pipe malfunction is detected when the ventilator tube from the valve cover to the separator device is disconnected resulting in a pressure below the lower limit.Both of these malfunctions will result in a DTC being set.

Ford P1491 Fault Code Meaning :

Ford P1491 Symptoms :

Ford P1491 Reasons :

How To Fix Ford P1491 Trouble Code ?

Which Ford cars have the code P1491?

  • P1491 Ford Aerostar
  • P1491 Ford Bronco
  • P1491 Ford C-Max
  • P1491 Ford C-Max Energi
  • P1491 Ford C-Max Hybrid
  • P1491 Ford Contour
  • P1491 Ford Crown Victoria
  • P1491 Ford EcoSport
  • P1491 Ford Econoline
  • P1491 Ford Edge
  • P1491 Ford Escape
  • P1491 Ford Escape Hybrid
  • P1491 Ford Escort
  • P1491 Ford Everest
  • P1491 Ford Excursion
  • P1491 Ford Expedition
  • P1491 Ford Explorer
  • P1491 Ford Explorer Sport Trac
  • P1491 Ford F-150
  • P1491 Ford F-250
  • P1491 Ford F-350
  • P1491 Ford Fiesta
  • P1491 Ford Flex
  • P1491 Ford Focus
  • P1491 Ford Focus Electric
  • P1491 Ford Freestar
  • P1491 Ford Freestyle
  • P1491 Ford Fusion
  • P1491 Ford Fusion Energi
  • P1491 Ford Fusion Hybrid
  • P1491 Ford Fusion Plug-In Hybrid
  • P1491 Ford GT
  • P1491 Ford Mustang
  • P1491 Ford Mustang Mach-E
  • P1491 Ford Mystique
  • P1491 Ford Probe
  • P1491 Ford Ranger
  • P1491 Ford Taurus
  • P1491 Ford Taurus X
  • P1491 Ford Tempo
  • P1491 Ford Thunderbird
  • P1491 Ford Transit
  • P1491 Ford Transit Connect
  • P1491 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.