Rear defroster diagram

[tobypine2]

We picked up a ‘16 LT Tahoe several months ago from a competing dealership, so not supported or certified. For whatever reason, didn’t notice one of the defroster tabs broken til a month or two after. I fixed it with a kit but still not working. I’ve yet to put my meter on them, but did follow through a couple fuses and can hear the relay in the back left click when it’s turned on but still not working.
Would anyone have a link to the electrical schematic for this system so I can follow it through? Wondering if I missed something inline or otherwise while I get my meter from work to check the tabs.
It’s only getting colder and mommas not happy!
TIA

 

[George B]

Before you get too deep into it use the meter to check for voltage at the wires. What kit did you use and how did you do it.

 

[tobypine2]

I used the Permatex (think I spelled it right) kit from Oreilly s. Made sure it was a warm enough day. Follows instructions to a T, cleaning, wait times, all that. And it stuck properly. Forgot my meter this morning though.

 

[greenhornet]

 

[tobypine2]

Thanks greenhornet.
After putting a meter on the tabs, I’m getting 14v+- a bit. So they’re working. I think I figured out where I went wrong. I didn’t glue the tab completely back in the original spot. I think I missed enough conductive space under both ends of the tab.
So now it’s either taking a chance of breaking it off and doing it all over, or finding some conductive glue, tape or something to bridge the gap to make it work completely.
At an old job we used a conductive paint that had silver in it for military jobs. I might look for something like that in a pen form.

 

[wjburken]

Thanks greenhornet.
After putting a meter on the tabs, I’m getting 14v+- a bit. So they’re working. I think I figured out where I went wrong. I didn’t glue the tab completely back in the original spot. I think I missed enough conductive space under both ends of the tab.
So now it’s either taking a chance of breaking it off and doing it all over, or finding some conductive glue, tape or something to bridge the gap to make it work completely.
At an old job we used a conductive paint that had silver in it for military jobs. I might look for something like that in a pen form.

Might give FrostFighter a try. Folks here swear by it.

Frost Fighter Rear Window Defroster/Defogger Tab Bonding Repair Kit 2000 https://www.amazon.com/dp/B075FXYNRS/ref=cm_sw_r_cp_api_glt_fabc_7KZF3AC3C8JH5W8Z3ZCK

 

[George B]

Thanks greenhornet.
After putting a meter on the tabs, I’m getting 14v+- a bit. So they’re working. I think I figured out where I went wrong. I didn’t glue the tab completely back in the original spot. I think I missed enough conductive space under both ends of the tab.
So now it’s either taking a chance of breaking it off and doing it all over, or finding some conductive glue, tape or something to bridge the gap to make it work completely.
At an old job we used a conductive paint that had silver in it for military jobs. I might look for something like that in a pen form.

Frost fighter...
https://frostfighter.com/

 

[George B]

Go to post 27338
https://www.tahoeyukonforum.com/thr...nnbs-gmt900-tahoe-yukon-today.44151/page-2734