P521B
P521B Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P521B 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 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 P521B Fault Code Meaning :
Ford P521B Symptoms :
Ford P521B Reasons :
How To Fix Ford P521B Trouble Code ?
Which Ford cars have the code P521B?
- P521B Ford Aerostar
- P521B Ford Bronco
- P521B Ford C-Max
- P521B Ford C-Max Energi
- P521B Ford C-Max Hybrid
- P521B Ford Contour
- P521B Ford Crown Victoria
- P521B Ford EcoSport
- P521B Ford Econoline
- P521B Ford Edge
- P521B Ford Escape
- P521B Ford Escape Hybrid
- P521B Ford Escort
- P521B Ford Everest
- P521B Ford Excursion
- P521B Ford Expedition
- P521B Ford Explorer
- P521B Ford Explorer Sport Trac
- P521B Ford F-150
- P521B Ford F-250
- P521B Ford F-350
- P521B Ford Fiesta
- P521B Ford Flex
- P521B Ford Focus
- P521B Ford Focus Electric
- P521B Ford Freestar
- P521B Ford Freestyle
- P521B Ford Fusion
- P521B Ford Fusion Energi
- P521B Ford Fusion Hybrid
- P521B Ford Fusion Plug-In Hybrid
- P521B Ford GT
- P521B Ford Mustang
- P521B Ford Mustang Mach-E
- P521B Ford Mystique
- P521B Ford Probe
- P521B Ford Ranger
- P521B Ford Taurus
- P521B Ford Taurus X
- P521B Ford Tempo
- P521B Ford Thunderbird
- P521B Ford Transit
- P521B Ford Transit Connect
- P521B 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.