I have a few large plugs on my engine harness ('04 Buick Raineer) that I am having trouble identifying. Can you guys help please?




1:



2:



And 3:

 

2nd is probably a main body harness connection and last is the underhood fuse block connection

 

Thanks. Does #1 plug into the TAC module? Disassembling the harness, the wiring from the throttle by wire throttle body goes to it.

 

I cannot see the pictures...

 

Shouldn't have any issue, they're hosted on photobucket. The only one I've 100% identified so far is #3, the fuse box plug. I need to identify the other 2 so I can find them in a wiring diagram, and see if I need to retain any of the pins.