M939A2: Which Wire Number From Light Switch Gets Powered W/ Switch In Stoplight Mode

[gottaluvit]

Ok, I spent a lot of time looking on here, and in TMs yesterday and found this chart pictured and thought I could just hook to post C, wire 22. Just ran a jumper to verify by connecting terminal C to terminal F and the brake lights were lit but no signal. I don't want to start cutting insulation (on possible wrong wires) with switch connected, but it is coming close to that. I am hooking up a back up alarm and back up lights, but only want them to function when not in sound and light discipline modes. Any help would be greatly appreciated.

 

[gottaluvit]

Ok. Nevermind. I was reading The HUlk's post, https://www.google.com/url?q=http:/...client=internal-uds-cse&usg=AFQjCNGZWmbpSQ7a- MJ83VyflMJ6_zoqaw
and he explained using the resistance test on the switch while in the positions I needed to have powered for my situation. Then the duh moment hit me. Thanks HUlk!

 

[gottaluvit]

Well, doing the continuity test, the winner is post "J", wire 460-461.