Drl relay location and are there separate relays for front and back ? Thank you

What is your question?

front drl lights work, the back do not. Also on the back right, the taillight and license plate do not work. Bulbs look good, but were replaced anyway, did not help. All fuses are good but do not know how to check relays. Where are the drl relays located and how are they marked.

How long has your 2001 Chevrolet Tahoe had this problem?

1 week