Search for the spot to enter your identity theft pin. It is a different field then the regular pin
Open your return if you don't already have it open. Inside TurboTax, search for IP PIN(don't forget the space) and then select the Jump to link in the search results. On theIdentity Protection PIN screen, answer Yes and enter your IP PIN in the space provided.
https://ttlc.intuit.com/community/entering-importing/help/how-do-i-add-or-remove-my-6-digit-ip-pin/0...
Disclaimer: Not a tax professional. Information gathered from internet links. Anything dated in June 2019 was posted in prior years and is before the 2019 limits and changes.