If you are self-employed, you will still owe self-employment tax (Social Security and Medicare tax).
If have any income that does not fall under the exclusion, that will likely result in income tax.
As for your actual question, I'm not sure how TurboTax is set up. Logically, you should enter it on Schedule C then as a second step in the foreign exclusion section indicate that is the amount that is eligible to be excluded. But I am not certain how TurboTax is set up.
