Stereo not working

2005 CHEVROLET HHR
130 MILES • 4 CYL • 2WD • AUTOMATIC
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BERNIE420
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My battery died and when I got a jump start the stereo did not work after that. It does not turn on at all. I checked fuses and their all good. What is wrong with it and how can I fix it?
Dec 13, 2018 at 2:04 AM
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STRAILER
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Hello,

It sounds like you had a voltage sure which popped the RDO fuse here is a guide to help you test the fuse and the fuse location in the diagrams below. The fuse is on the BCM module

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Dec 14, 2018 at 1:25 PM
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NEDNUB
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The radio still does not work and the A/C pump, won't start, turn signals don't click when using and leaving the key in and opening the door makes no sound.
Jul 13, 2024 at 11:16 AM
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STRAILER
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You need to check the RDO and AMP fuses, but it sounds like to me that the BCM is out, to be sure, let's do a CAN scan. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:
.

https://youtu.be/u-4syLc-ifQ

Here are the radio and amplifier wiring diagrams so you can see how the system works. Also, I have included how to swap out the BCM for a preprogrammed unit for easy installation. Check out the images (below). Please let us know what happens.
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Jul 13, 2024 at 11:24 AM