I appreciate the post, because I've been trying to figure out how to bypass the glowplug controller on my 6.9 for over a year, with no success. Bank's Sidewinder sits on top of the controller, which is apparently Tango Uniform. Installed a pushbutton, a wire from battery to one side of the button, and a wire to the glowplug relay. Don't know what I did wrong, but got a god-awful sound from starter when I tried to start the engine. Put everything back to how I found it, and went back to plugging up my "electric truck" at night.
Should I run the load wire to the relay terminal with the purple wire?
Help, please. I have to keep an extension cord in my truck, to heat block. Otherwise, it don't start. Period.
Thanks in advance. And sorry if I'm hijacking OP a bit. But, this is driving me to distraction.