when i have touch id enabled?

In addition to the articles kareng12 posted, you would be required to enter your passcode if:

1. You powered your phone off, then back on
2. You Force Restarted Your iPhone
3. After you installed an iOS update

Hi there Maxhedrumor!

Thank you for posting in Apple Support Communities. It sounds like your passcode was requested when you are using Touch ID. We have some information that you may find helpful.

We see that you reviewed our article "Share analytics, diagnostics, and usage information with Apple" and while it has great information, may not address the issue that you are experiencing.

Take a look here: If Touch ID isn't working on your iPhone or iPad

We hope this helps.

Cheers!