Hi all 1st post here
I'm pulling my hair out on this one. I have a 2004 Impala, just plain jain nothing fancy. My rear defroster doesnt work. I gotprint out (see below) and it says there should be 30amp breaker on passenger side. owners manuel says same thing. But when I look all I see is connector block for that fuse block?
I replaced the relay and I get 12v all time from engine compartment. But when I measure at plug ins in rear window I get nothing. Yes I tried going to ground and across each other and any possible combo (I have extensive electronics back ground, automotive, mechanical, well.... it's getting better)
Underneath grey cover on right side looks like connectors for wires to fuse box. I tried to take it off but I unscrewed that screw and it still didnt come all way off and I was afraid to pull to hard and break something. Or should I?
Like I mentioned in aboveI have no idea where that breaker is.
I'm wanting to see if I'm getting voltage to breaker. then go from there.....
Also what is 'radio antennna module (on upper left portion of left "C" Piller)'? I see this and it has printed circuit board and 3 wires going into it. See wire diagram below.
click on pic for larger view. after you click on it, lower right corner of pic it says 'full view'. click that
Thanks for any help