[Moderator Note]: Further along in this thread, it was realized that an additional in-line fuse is NOT needed and can even cause heat-related issues (including the in-line fuse catching fire!). So please do not add an in-line fuse - simply use a piece of wire as a "jumper" wire to "jump" around the burnt connector. Read the entre thread for more details!
I noticed that there is a very common problem with 2006-up Impala rear defrosters not working. Mine was one of them. The problem is very evident once you find it. Obviously Chevy, in all of their infinite wisdom decided that the defroster circuit in the 06-up Impala's didnt need to be fused. They also used too small of a connector for the high current defroster wires. This quickly burns out. It really should be a recall due to the fire hazard. Enough people must not have died for Chevrolet to care.
If you remove the passenger side kick panel where the inside fuse box is, you will see a white connector below the fuse box. Disconnect the white connector. If your defroster isnt working and you dont have 12V at the rear window, your problem is most likely that this white connector burned out. After disconnecting the connector you should see something similar to what I have shown below.
Obviously this is the problem. A burnt, melted connector. What I did was cut the large purple wire on the engine side and cut the large black wire on the rear side of the connector. I used high quality crimp connectors with heat sealing ends and then wrapped them in tape. I added a 30amp inline fuse to protect the circuit from doing this again. Make sure the wiring you use it large enough to support the defroster. I used a wiring kit for a small amp to make sure it was large enough.
I then tucked everything in nice and neat and placed the fuse in a place where it can be easily reached.
I sure hope this write up helps people out. I know that when I searched for this problem, it seems like everyone's defroster didnt work, but no one had the solution. People kept giving dumb, generic advice. I only found one correct answer, which was a one liner. Thats why I decided to take some pictures.
I noticed that there is a very common problem with 2006-up Impala rear defrosters not working. Mine was one of them. The problem is very evident once you find it. Obviously Chevy, in all of their infinite wisdom decided that the defroster circuit in the 06-up Impala's didnt need to be fused. They also used too small of a connector for the high current defroster wires. This quickly burns out. It really should be a recall due to the fire hazard. Enough people must not have died for Chevrolet to care.
If you remove the passenger side kick panel where the inside fuse box is, you will see a white connector below the fuse box. Disconnect the white connector. If your defroster isnt working and you dont have 12V at the rear window, your problem is most likely that this white connector burned out. After disconnecting the connector you should see something similar to what I have shown below.
Obviously this is the problem. A burnt, melted connector. What I did was cut the large purple wire on the engine side and cut the large black wire on the rear side of the connector. I used high quality crimp connectors with heat sealing ends and then wrapped them in tape. I added a 30amp inline fuse to protect the circuit from doing this again. Make sure the wiring you use it large enough to support the defroster. I used a wiring kit for a small amp to make sure it was large enough.
I then tucked everything in nice and neat and placed the fuse in a place where it can be easily reached.
I sure hope this write up helps people out. I know that when I searched for this problem, it seems like everyone's defroster didnt work, but no one had the solution. People kept giving dumb, generic advice. I only found one correct answer, which was a one liner. Thats why I decided to take some pictures.