2006 gmc envoy_slt
So here is my issue. I searched on this and couldn't find anything that has the same symptoms so here it goes. 2006 Envoy SLT, 85K miles, no codes. The issue is my rear defroster is not working. I have heated mirrors and they are working. The treads that I have read about this, most of the guys also have an issue with the rear wiper not working as well as the key fob not locking/unlocking the lift gate. This is not the issue, my rear wiper works fine (although it sucks at cleaning the glass, I need to upgrade to the 07+) and the lift gate locks and unlocks with the key fob. I'm not sure if the LGM (from what I've been able to find) is my problem. Last night I checked the wires inside the boot on the top of the list gate and they all seem to be intact, no tears or broken wires. I did not check the voltage of the wires as I can't seem to find my fluke meter. I also checked to make sure that both connections on the glass were clean and connected correctly and looked for obvious breaks in the coating on the glass. My question is, am I missing something obvious or am I searching for this with the wrong terminology? Any help would be much appreciated on this and thank you in advance.