94 s10 blazer rear defrost doesn't work....Light on button comes on any ideas?
Thanks in advance

 

You can test the grids across the back window with a test light to see if you are getting power back there.

 

check your connections at the back window. Mine were broken. there should be 2, one on each side around where the window shocks are. Most auto parts store sell a kit to help you re-connect them or you could solder them, just keep the glass cool so it doesnt crack or break on you.

 

I actually saw the driver side wire broken near the window shock I thought it was to open the the back glass!!! I will pull out the ol solder gun thank you finally a minor problem lol