P9D21
P9D21 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.P9D21 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.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 top-of-clutch switch and bottom-of-clutch switch are both measured as closed at the same time. Troubleshoot for clutch switch shorted, or for a wiring fault between the clutch switch and the BHM.
Ford P9D21 Fault Code Meaning :
Ford P9D21 Symptoms :
Ford P9D21 Reasons :
How To Fix Ford P9D21 Trouble Code ?
Which Ford cars have the code P9D21?
- P9D21 Ford Aerostar
- P9D21 Ford Bronco
- P9D21 Ford C-Max
- P9D21 Ford C-Max Energi
- P9D21 Ford C-Max Hybrid
- P9D21 Ford Contour
- P9D21 Ford Crown Victoria
- P9D21 Ford EcoSport
- P9D21 Ford Econoline
- P9D21 Ford Edge
- P9D21 Ford Escape
- P9D21 Ford Escape Hybrid
- P9D21 Ford Escort
- P9D21 Ford Everest
- P9D21 Ford Excursion
- P9D21 Ford Expedition
- P9D21 Ford Explorer
- P9D21 Ford Explorer Sport Trac
- P9D21 Ford F-150
- P9D21 Ford F-250
- P9D21 Ford F-350
- P9D21 Ford Fiesta
- P9D21 Ford Flex
- P9D21 Ford Focus
- P9D21 Ford Focus Electric
- P9D21 Ford Freestar
- P9D21 Ford Freestyle
- P9D21 Ford Fusion
- P9D21 Ford Fusion Energi
- P9D21 Ford Fusion Hybrid
- P9D21 Ford Fusion Plug-In Hybrid
- P9D21 Ford GT
- P9D21 Ford Mustang
- P9D21 Ford Mustang Mach-E
- P9D21 Ford Mystique
- P9D21 Ford Probe
- P9D21 Ford Ranger
- P9D21 Ford Taurus
- P9D21 Ford Taurus X
- P9D21 Ford Tempo
- P9D21 Ford Thunderbird
- P9D21 Ford Transit
- P9D21 Ford Transit Connect
- P9D21 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.