my rear defroster does not work. on 2003 GMC Yukon XL 1500

I had a new window put in and it still doesn't work. The light on the switch comes on. How do I troubleshoot this?

by in Rochester, NY on November 21, 2012
2 answers 3 comments
ANSWER by , November 21, 2012
check wiring
COMMENT by , November 21, 2012
I am not sure how to test it
COMMENT by , November 21, 2012
use a test light and check to see if your getting power at the connector on the window
COMMENT by , November 21, 2012
No power, will the switch light still go on if the relay is bad? That's my only guess
ANSWER by , November 21, 2012
ck all wiring connections at window and did it work b4 the window was repl