U0638
U0638 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.U0638 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 supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.
The suspension proportioning output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for suspension proportioning air solenoid fault, and for air pressure switch short circuit fault.
Ford U0638 Fault Code Meaning :
Ford U0638 Symptoms :
Ford U0638 Reasons :
How To Fix Ford U0638 Trouble Code ?
Which Ford cars have the code U0638?
- U0638 Ford Aerostar
- U0638 Ford Bronco
- U0638 Ford C-Max
- U0638 Ford C-Max Energi
- U0638 Ford C-Max Hybrid
- U0638 Ford Contour
- U0638 Ford Crown Victoria
- U0638 Ford EcoSport
- U0638 Ford Econoline
- U0638 Ford Edge
- U0638 Ford Escape
- U0638 Ford Escape Hybrid
- U0638 Ford Escort
- U0638 Ford Everest
- U0638 Ford Excursion
- U0638 Ford Expedition
- U0638 Ford Explorer
- U0638 Ford Explorer Sport Trac
- U0638 Ford F-150
- U0638 Ford F-250
- U0638 Ford F-350
- U0638 Ford Fiesta
- U0638 Ford Flex
- U0638 Ford Focus
- U0638 Ford Focus Electric
- U0638 Ford Freestar
- U0638 Ford Freestyle
- U0638 Ford Fusion
- U0638 Ford Fusion Energi
- U0638 Ford Fusion Hybrid
- U0638 Ford Fusion Plug-In Hybrid
- U0638 Ford GT
- U0638 Ford Mustang
- U0638 Ford Mustang Mach-E
- U0638 Ford Mystique
- U0638 Ford Probe
- U0638 Ford Ranger
- U0638 Ford Taurus
- U0638 Ford Taurus X
- U0638 Ford Tempo
- U0638 Ford Thunderbird
- U0638 Ford Transit
- U0638 Ford Transit Connect
- U0638 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.