Originally Posted by PSU Taco85
Hey John the way we wired it up on Saturday I tied Pin 85 and 30 together, and used the switch to provide a ground on pin 86 of the relay. This is probably why the LED wasn't working on your switch. To get the LED for the switch working, you rewire the switch to provide +12V to the relay coil instead of ground like others have said. The inside of your switch looks like this:
You just need to figure out which pin is for the LED. So +12V goes to one pin, the other pin goes to pin 86 of the relay, and then you ground the third pin of the switch for the LED.
This just confused me. What was the reason for tying the 85 and the 30 together? If the switch is lighted, you need to ground a pin, have another pin connected to a fused power, then the last pin to the accessory. Usually the middle pin is to a fused power, the top pin to the ground, and the bottom pin to the accessory. So in this case the relay should have pin 30 connected to a fused power from the battery that is always hot, 85 to the switching means of the relay, 87 to the lights, and 86 to ground. I would have a 15A fuse from the power source to the relay, and maybe a 3A fuse from the power source to the switch.