What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[Doubeleive]

I’m going to go to autozone here in a bit for some wire and ring terminals- what do you think some ways to bodge it together would be?

good question, I guess it depends on what condition the connector is, if it's burnt and melted it might be best to just put in a used one or bypass it somehow, if its just corroded or has minor scorching you might be able just clean it up and put in some better grounds like you mentioned.

 

[Sam Harris]

Welp. Dealer told me i need a $650 underhood fuse block and didnt charge me for diag. Tech forgot his electrical tape in my engine bay. I drove it home. Now i’m trying to figure out how to pull the fuse block out so I can take it apart and figure out how to make the wipers work.

Fuuug...

 

[R3cord303]

@Doubeleive so it sounds like pins K1 and K3 go high when wipers are on depending on the setting, and then those go thru the fuse for the wipers, and then in turn, make J1 go high when the wipers wipe correct? so... a T tap on K3 with a fuse that then goes into a T tap on J1 would "work" right?

 

[Doubeleive]

I’m going to go to autozone here in a bit for some wire and ring terminals- what do you think some ways to bodge it together would be?

I would order one of these to have around for future refernce
https://www.ebay.com/itm/GMC-Yukon-...669554?hash=item2f36bab8b2:g:cCsAAOSwqf1dXufz

 

[Doubeleive]

@Doubeleive so it sounds like pins K1 and K3 go high when wipers are on depending on the setting, and then those go thru the fuse for the wipers, and then in turn, make J1 go high when the wipers wipe correct? so... a T tap on K3 with a fuse that then goes into a T tap on J1 would "work" right?

that's what it says the connectors are in the service manual yes

 

[Doubeleive]

j1 is high speed control (purple)
k1 is high signal (tan)
k2 is switch signal 2 (grey)

 

[R3cord303]

j1 is high speed control (purple)
k1 is high signal (tan)
k2 is switch signal 2 (grey)

Does it list which wire actually goes to the wiper transmission?

 

[R3cord303]

Also thank you so much @Doubeleive for your help. I’ve been stressed all day about this and combined with wayyy too much coffee

 

[Doubeleive]

Does it list which wire actually goes to the wiper transmission?

I don't see anything it might be because of the high speed lan (serial bus) that they use, you might try looking at the upfitter guide they usually have some good wiring diagrams

 

[Doubeleive]

you might be able to get them working temporarily using the tp92/95 that I posted earlier I just looked in my fuse box I would imagine either one of those pins would either take 12v or a ground, you would need to check the pin to see if it it's hot or not, then hook up a toggle switch, janky but it would give you wipers (i think)