Dsh and radio shut off while driving

2007 PONTIAC GRAND PRIX
13,900 MILES • 0.5L • 6 CYL • AUTOMATIC
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CHEIFS2090
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Ground wire?
Jan 20, 2022 at 5:08 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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KASEKENNY
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The short answer is, it can be a ground wire, but does it work fine as long as you are not driving?

https://www.2carpros.com/articles/how-to-check-wiring

When it shuts off, what do you have to do in order to get it running again?

This ground for the radio and cluster is the G202 which is on the right side upper left footwell.

That means driver side footwell but on the right side of it towards the top. I put a diagram of this below.

Basically, we need to monitor the voltage on the radio to make sure the power or ground is not dropping out. If not, then the radio is the issue.

Please run through this and let me know what questions you have.

Thanks
Jan 21, 2022 at 4:09 PM
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CHEIFS2090
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The car still runs when the dash and radio shuts, off but after the radio and dash go out and when you shut off the car it's completely out until you lift up the wire to the battery.
Jan 21, 2022 at 8:59 PM
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KASEKENNY
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Okay. That is good info. However, can you get a couple more pictures of these wires and how they connect to the battery?

They do not look like factory wiring so is there anything added to this vehicle? Is it the stock radio?

Lastly when you say you lift the wire to the battery, do you mean remove it from the battery and reconnect it or just move it around and the radio comes but leave it connected to the battery?
Jan 22, 2022 at 3:18 PM
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CHEIFS2090
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Yes, it's a factory radio. here are some more pics. the wire in the pic if i lift up the car lights come back on, and the car starts.
Jan 24, 2022 at 2:37 PM
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KASEKENNY
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Okay. That wire is a major issue, and we need to replace it.

I suspected that is what you meant, and it is actually a safety issue. The reason it works when you pick up on it is because it is stripped and looks like it is even burned. The fact that it has tape all around it shows that it has been an issue for a while, and someone didn't repair it properly.

I would disconnect the positive and negative battery cable and then unwrap that tape to see what it looks like.

You can get some more pictures of that if you want to run it by me, but we most likely need to replace this entire cable at this point.

I am attaching the process below for the cable replacement.

Please let me know what it looks like under that tape, but we should do this first and I bet it resolves all the issues.
Jan 24, 2022 at 7:03 PM