CurrentlyI have what you want on my truck (2018), but I also have the turn signals. Try this and see it turns off the low lamps:
726-45-01 xxxx 7FXX xxxx This enables all DRL choices
726-26-02 x1xx xxxx xxxx This includes the parking lamps
726-50-01 08xx This make the DRL the turn signals (plus the parking lights you added with the other code)
The brightness thing doesn't do anything, change it back to stock.
7F01
0100
017F < oddly this did not change. Said it was a checksum error after changing it in the post above. Strange.
Cycled power, tried again, and just changing to 08 updated the value to 0886. Turned truck on, put in drive, activated DRL, and the turn signal came on with the parking lights, but the low beams remain on as well.