battery box sensor?

What is it for and if it doesnt end up under the battery again will it mess something up.

ON a 04

It's to test the temperature of the battery. If it gets to hot the computer will let you know. You can just zip tie it to the firewall. That's what I did. But if you unplug it, it will give a code.

thank your always a big help,when you gonna get some new pics up gonna try to have mine finished by the end of the weekend.

No problem man. Who knows on the pics. I'm workin on 2 customer rides right now. Hopefully soon.