turn signals

Can someone help me read the OE wiring diagrams? I did my own harness but I am having issues with the Turn signal wiring. I am not really. understanding the Alldata diagrams. Such as the one attached. I am not understanding the symbols and numbers. The box that says CONN ID does not make sense...

Full disclosure: this is not my realm of expertise, I'm effectively handicapped when it comes to understanding some of this stuff but I could use your help! I'm not using the standard headlights, sideview mirrors, or rear lights and this creates a 'fun' opportunity for me. While searching...