Hello. New to the forum. My fuel gauge isn’t illuminating and I’m trying to find out how to test it. I’m not sure if it’s the sending unit in the tank and/or the gauge that’s not working. I was wondering if there’s any way to directly hook the gauge up to a battery to test. There’s 3 wires that come off the gauge and I was wondering if there’s a safe way to test as I don’t want to fry it if it is in fact a working gauge. I’ve tested the resistance wires coming off of the sending unit inside the tank and they all came back as 0 on my multi meter so I’m pretty sure it’s bad but wanted to test the gauge as well.