P9A40
P9A40 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P9A40 Diagnosis
The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 2 air solenoid fault, and for air pressure switch short circuit fault.The ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.
The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.
Ford P9A40 Fault Code Meaning :
Ford P9A40 Symptoms :
Ford P9A40 Reasons :
How To Fix Ford P9A40 Trouble Code ?
Which Ford cars have the code P9A40?
- P9A40 Ford Aerostar
- P9A40 Ford Bronco
- P9A40 Ford C-Max
- P9A40 Ford C-Max Energi
- P9A40 Ford C-Max Hybrid
- P9A40 Ford Contour
- P9A40 Ford Crown Victoria
- P9A40 Ford EcoSport
- P9A40 Ford Econoline
- P9A40 Ford Edge
- P9A40 Ford Escape
- P9A40 Ford Escape Hybrid
- P9A40 Ford Escort
- P9A40 Ford Everest
- P9A40 Ford Excursion
- P9A40 Ford Expedition
- P9A40 Ford Explorer
- P9A40 Ford Explorer Sport Trac
- P9A40 Ford F-150
- P9A40 Ford F-250
- P9A40 Ford F-350
- P9A40 Ford Fiesta
- P9A40 Ford Flex
- P9A40 Ford Focus
- P9A40 Ford Focus Electric
- P9A40 Ford Freestar
- P9A40 Ford Freestyle
- P9A40 Ford Fusion
- P9A40 Ford Fusion Energi
- P9A40 Ford Fusion Hybrid
- P9A40 Ford Fusion Plug-In Hybrid
- P9A40 Ford GT
- P9A40 Ford Mustang
- P9A40 Ford Mustang Mach-E
- P9A40 Ford Mystique
- P9A40 Ford Probe
- P9A40 Ford Ranger
- P9A40 Ford Taurus
- P9A40 Ford Taurus X
- P9A40 Ford Tempo
- P9A40 Ford Thunderbird
- P9A40 Ford Transit
- P9A40 Ford Transit Connect
- P9A40 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.