Can't find out which relay switch is for my

How would you know anything needs to be replaced,
unless you tested it & you can't find it ,to do that?

HELM.Com ---- spend enough money for the factory
wiring diagrams & you will be read to start the process

I never even approach any vehicle without having referrence
material in hand first,your wasting your time

You can't do a thing, if you don't know how a system works
or where things are.

if you have to ask,it is beyond your current skill level