Don't take this as Gospel as it's just how I interpret it.
I suspect it's the emissions readiness status which some US states use for emissions testing. If a battery has been disconnected, or codes cleared, the system would indicate "not ready" as drive cycles need to be completed to test O2 sensors heaters and sensor operation, etc. If a "drive cycle" has been completed and all systems checked OK then the system would indicate "ready" meaning the emissions system checks out.
Test incomplete or dependant test failed would seem to indicate that your Jeep has not successfully completed drive cycles since battery disconnection or code clearing.
I have a ScangaugeII so here's how I can assess readiness...
http://www.scangauge.com/tips-and-tr...-scangauge-ii/