Noun for enable ("enability", "enabliness")?
What is the status of your device?
Might result in a few answers, among which are:
The device is currently enabled.
The device is currently disabled.
I don't think that you're going to find a good, unambiguous single word for this case. The other things suggested would not necessarily be understood by all English speakers without explanation. Just use a simple rewording:
Please check that your device is enabled.