Hello,
My rear wiper doesn't work at all. No sound, no clicking, nothing is heard when I turn it on to try it. I have checked the fuse and it is fine, replaced it anyway just in case. The defroster works great. So I do not have a volt meter so have to do it the old fashioned way. Do the relays go out more on them or the motor? I think that is the 2 things I need to check but unsure. Thanks!

 

Invest in a test light or better, invest in a multi-meter.
Then see if there is voltage going to the wiper motor
Check to see if there is power on the line going to the wiper motor
Sometimes the connection or connector gets all corroded and will not pass on voltage to the motor
Other times the wiper motor just fails
In case you have to take it off, please be careful and take your time in trying
It is all too possible to break something when in a hurry.