The DTCs found in the Display Diagnostics for the 2004 US Prius are posted here:
http://autos.groups.yahoo.com/group/Pri ... e%20Chart/
(you have to be a member to view the files)
Obviously, note that the vast majority of errors seen there are related to the radio/CD/AC/navigation, and will not trigger a check engine light... (But I'm certain that you knew that already...)
EMV appears to be for the Multi-display.
AVX doesn't appear in the documents.
I would probably suggest keeping an eye on your display - maybe you're seeing some of the early signs of the bad 2004 display?
http://autos.groups.yahoo.com/group/Pri ... e%20Chart/
(you have to be a member to view the files)
Obviously, note that the vast majority of errors seen there are related to the radio/CD/AC/navigation, and will not trigger a check engine light... (But I'm certain that you knew that already...)
EMV appears to be for the Multi-display.
AVX doesn't appear in the documents.
I would probably suggest keeping an eye on your display - maybe you're seeing some of the early signs of the bad 2004 display?