Rear defroster not working

One of the leads on the back window fell off and I was able to glue it back on.
I put test light on each of the heat strips and I have power through everything.
The light on dash is lit. But when I turn it on it will not heat window.
I also replaced the BCM because I was having problems with radio, key fob and some lights. This was all repaired with a BMC replacement but I'm having trouble again with that. I don't know if the BCM controls the defroster. I took car to dealer and they tested the BCM (flashed BCM ). They suggested to replace BCM with new one.