Hello everyone! I have a weird problem, which I have no idea if it's common among H2 owners or not. My rear passenger side bumper tail-light only works when I step on the brakes or if the turn signal is on. It does not light when the parking lights or headlights are on. I had a problem with it a few months ago occasionally working. Before it totally stopped working it would flicker quite a bit. I have already tried changing the bulb and checked all fuses.

Could it be the wiring harness or something else?

 

Mine works the other way. No brake light but the taillight works. Bulb is good.

 

How hard would it be to replace the rear bumper light wiring harness on a 2006 SUT?

GM part #88966140

Hummer H2 Rear Bumper Light Wire Harness New GM 88966140 | eBay