“Code not found in database”

I’m dealing with the issue of my 07 5.7 Tundra double cab sr5 4wd not shifting past fourth. Starting, acceleration, and shifting through fourth gear seems normal. The traction control light is solid, the VSC light is flashing, the check engine light is solid, and the 4lo Light is flashing.
I’ve read all the various threads on troubleshooting this issue, but I wanted to know if any of you have come across an ODB2 scanner reading “Code not found in database“, and what that might mean?

Thanks

 

Sometimes there are codes that are "dealer only" and would need tech stream to see what code it is. Thats one possiblity.