Temp sender ?

[Hugh Mongus]

I have been trying to figure out why my temp gauge isn't working. It looks like the dark green wire from the sender comes through the firewall and into the ignition switch on the wiring diagram then back out to the dash plug, is this accurate? I don't have any dark green wires coming out of my ignition switch which makes me think this is my problem.

- I have tried grounding it out to see if the gauge moves but it doesn't.
- I have installed a new sender.

Thanks in advance.