B0491
B0491 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.B0491 Diagnosis
The fault remains active until the ignition is turned ON when the fault is no longer present. Some BHM configurations force this circuit off until the ignition switch is cycled.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 FF.
The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.
Ford B0491 Fault Code Meaning :
Ford B0491 Symptoms :
Ford B0491 Reasons :
How To Fix Ford B0491 Trouble Code ?
Which Ford cars have the code B0491?
- B0491 Ford Aerostar
- B0491 Ford Bronco
- B0491 Ford C-Max
- B0491 Ford C-Max Energi
- B0491 Ford C-Max Hybrid
- B0491 Ford Contour
- B0491 Ford Crown Victoria
- B0491 Ford EcoSport
- B0491 Ford Econoline
- B0491 Ford Edge
- B0491 Ford Escape
- B0491 Ford Escape Hybrid
- B0491 Ford Escort
- B0491 Ford Everest
- B0491 Ford Excursion
- B0491 Ford Expedition
- B0491 Ford Explorer
- B0491 Ford Explorer Sport Trac
- B0491 Ford F-150
- B0491 Ford F-250
- B0491 Ford F-350
- B0491 Ford Fiesta
- B0491 Ford Flex
- B0491 Ford Focus
- B0491 Ford Focus Electric
- B0491 Ford Freestar
- B0491 Ford Freestyle
- B0491 Ford Fusion
- B0491 Ford Fusion Energi
- B0491 Ford Fusion Hybrid
- B0491 Ford Fusion Plug-In Hybrid
- B0491 Ford GT
- B0491 Ford Mustang
- B0491 Ford Mustang Mach-E
- B0491 Ford Mystique
- B0491 Ford Probe
- B0491 Ford Ranger
- B0491 Ford Taurus
- B0491 Ford Taurus X
- B0491 Ford Tempo
- B0491 Ford Thunderbird
- B0491 Ford Transit
- B0491 Ford Transit Connect
- B0491 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.