What should I do if I see Error-07, 11, 12, 17, or 30 on the CD player?

These error codes indicate the disc is dirty or scratched. Clean the disc with a soft cloth wiping outward from the center, or replace the disc if it is scratched. If the same errors appear alongside codes 10, 15, or A0, there may be an electrical or mechanical error requiring you to turn the ignition OFF and back ON. (Page 40)