Did you complete your NY tax return before you did the Illinois return, as per this TT help reference? The sequence in which you complete the returns is critical.
How do I file a part-year state return? (intuit.com)
Follow the instructions in this previous TT Q&A when you enter your NY income. Your NY income includes the income you earned working remotely from Illinois.
How to enter New York State income as a part-year resident in TurboTax (intuit.com)
I think this should result in the program itself entering your remotely-earned NY income on Line 1. Column B, of your Illinois Schedule CR.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
