Rear defog defrost

Discussion on Air Conditioning/Heat & electronic controls for the same, radiators/fans/engine cooling and related items.
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Posts: 6
Joined: Sat Oct 15, 2016 5:26 am

Rear defog defrost

Post by szron » Tue Dec 26, 2017 4:09 pm

I always thought it's just crappy but now it doesn't work. I checked the RR Defog 40A fuse, it's fine.

Where do you even begin trouble shooting?

I know my 2006 Impala had a wire for the defrost that would short by the front passenger seat but I'm not sure how to go about finding it.

Posts: 1511
Joined: Mon Jul 29, 2013 6:44 am
Location: Azusa,CA

Re: Rear defog defrost

Post by smwalker » Tue Dec 26, 2017 10:52 pm

first you would want to inspect the contacts on the rear window make sure the wires did not fall off. May have to remove the plastic side pieces to even see them. You could then test to make sure you got voltage and ground at the wires as well. If all that looks good there maybe a break in the grid on the window. rare but it happens.
Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White

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