Things I've done to attempt to fix the issue:
-I checked the ground on the rear harness and cleaned and reinstalled.
-Pulled a light switch from my truck and put it in my Tahoe and it worked fine.
-Replaced relay under hood.
-Replaced tail lights with the tail light from my Tahoe.
-Checked power off of the main harness and did not see any power (if I did it correctly).
I'm not very electrical inclined but willing to try if explained.
have the same problem?
Tuesday, July 20th, 2021 AT 5:01 PM