The reverse lights are on the same fuse as other things, so unless you have other stuff that doesn't work, it's not the fuse. Check the black/pink wire coming out of the TRS - with the key in run and the tranny in reverse, that wire should have 12v coming out - it's the power feed to the reverse lights. If the wire doesn't have power, check the orange wire - it's the power feed from the fuse to the TRS for the reverse lights. If you have power on the orange wire but not the black/pink wire, you can loosen the bolts holding down the TRS and move it slightly to see if you can adjust it for them to work. If you can't get power on the wire by adjusting the switch, then it's junk. If you don't have power on the orange wire, and the fuse is ok, then you have a wiring problem somewhere between the TRS and the fuse panel under the dash. If you have power coming out of the TRS but not at the reverse light sockets, then you'll have to start following the wiring there. There's a splice in the black/pink wire to the reverse sockets in the harness near where the wire for the rear defroster splits off. Check that splice for corrosion.
