P0491
P0491 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P0491 Diagnosis
The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short circuit fault.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.
This circuit connects to the CHM as an input at connector J3,P. The CHM passes the signal through to power the tail lamps and marker lamps from connector C2 pin G and also from connector C1 pins D, E, and F.
Ford P0491 Fault Code Meaning :
Ford P0491 Symptoms :
Ford P0491 Reasons :
How To Fix Ford P0491 Trouble Code ?
Which Ford cars have the code P0491?
- P0491 Ford Aerostar
- P0491 Ford Bronco
- P0491 Ford C-Max
- P0491 Ford C-Max Energi
- P0491 Ford C-Max Hybrid
- P0491 Ford Contour
- P0491 Ford Crown Victoria
- P0491 Ford EcoSport
- P0491 Ford Econoline
- P0491 Ford Edge
- P0491 Ford Escape
- P0491 Ford Escape Hybrid
- P0491 Ford Escort
- P0491 Ford Everest
- P0491 Ford Excursion
- P0491 Ford Expedition
- P0491 Ford Explorer
- P0491 Ford Explorer Sport Trac
- P0491 Ford F-150
- P0491 Ford F-250
- P0491 Ford F-350
- P0491 Ford Fiesta
- P0491 Ford Flex
- P0491 Ford Focus
- P0491 Ford Focus Electric
- P0491 Ford Freestar
- P0491 Ford Freestyle
- P0491 Ford Fusion
- P0491 Ford Fusion Energi
- P0491 Ford Fusion Hybrid
- P0491 Ford Fusion Plug-In Hybrid
- P0491 Ford GT
- P0491 Ford Mustang
- P0491 Ford Mustang Mach-E
- P0491 Ford Mystique
- P0491 Ford Probe
- P0491 Ford Ranger
- P0491 Ford Taurus
- P0491 Ford Taurus X
- P0491 Ford Tempo
- P0491 Ford Thunderbird
- P0491 Ford Transit
- P0491 Ford Transit Connect
- P0491 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.