Have you checked the fuse for the reverse lights?
And also checked the bulbs.
These would be the first and easiest things to do.
I have attached the wiring diagram the fuse is in the under hood fuse box.
The second picture shows the PNP switch which contains the reverse light switch.
It is located underneath your air inlet/air filter box on top of the transmission.
Hope this helps.
Images (Click to enlarge)
Wednesday, March 20th, 2019 AT 1:29 PM