This is how mine is setup. I did try switching them, but it didn’t seem to make a difference. I can grab my multimeter. What do you recommend I test?
Thank you! I tried that, but I still can't get it to read anything. I wonder if I got one with a bad harness. On mine GPT1 is a gray wire and the brown wire is marked L-Line.
I've spent most of the weekend trying to get this to work, but despited my best efforts I keep getting unsuccessful error messages. Something I didn't see mentioned anywhere is should the jumper interface be set to on or auto? Also when it prompts you if you want to use the automatic power...