2005 2wd Tahoe 4.8L (HELP)

[Rocket Man]

I'm curious what those pins operate. If anyone may know I would really appreciate the info.

That’s your engine control module, actually in the NBS it’s the powertrain control module which combines the engine control module and transmission control module. So everything that has to do with your engine and powertrain.

 

[FLORIDA1]

Right I understand that.
Just wondering what those corroded pins operate?

 

[Hobert]

Right I understand that.
Just wondering what those corroded pins operate?

GM Upfitters has the electricals. Link below you can download the manual. Page 62 begins ECM connectors.
https://www.gmupfitter.com/wp-content/uploads/2021/05/2005_LD_CKFullSizeElectrical.pdf

 

[Rocket Man]

Right I understand that.
Just wondering what those corroded pins operate?

Oh. Yeah you’ll have to look that up. I don’t have them committed to memory lol. If you have a subscription to alldatadiy you can look up pin outs on the connectors or follow the link above.

 

[Mudsport96]

well if that is the left side of the connector, it would affect the top 3 or 4 in both of these columns.
So power, ground, fans, and a couple injectors.

Edit: credit where credit is due. Got the info from lt1swap.com

 

[FLORIDA1]

Thanks Alot!

 

[Mudsport96]

Welcome much