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Old 05-30-2022, 12:38 AM   #1
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Year: 1998
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What do the wires on this electrical panel all lead to?

Hi, I'm new to skoolie stuff, and I've not a clue about anything electrical that has to do with busses. My bus is a 1998 Chevrolet Express G3500 Cutaway bus. Here are the pictures of the electrical panel. Thank you for any help!

~John

P.S. if I'm missing any details, please respond and tell me, and I'll try my best to provide them!
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Old 05-30-2022, 09:01 AM   #2
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Originally Posted by Guesty View Post
Hi, I'm new to skoolie stuff, and I've not a clue about anything electrical that has to do with busses. My bus is a 1998 Chevrolet Express G3500 Cutaway bus. Here are the pictures of the electrical panel. Thank you for any help!

~John

P.S. if I'm missing any details, please respond and tell me, and I'll try my best to provide them!
That yellow box is the flashing control box for the red and yellow lights for when passengers are picked up and dropped off.

Post #2 has a Weldon pdf doc that will explain more.
https://www.skoolie.net/forums/f49/w...tml#post460667
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Old 05-30-2022, 11:52 AM   #3
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shoot me a text and i can share pictures of what i did with my 2004 in that area.
it looks to be identical if not a little bit neater than what i started with on my collins body.
but i can share pics and what i did to bypass the vandalock on mine.
910-581-7210
text me and reference skoolie.net
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Old 05-31-2022, 12:10 AM   #4
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Originally Posted by ewo1 View Post
That yellow box is the flashing control box for the red and yellow lights for when passengers are picked up and dropped off.

Post #2 has a Weldon pdf doc that will explain more.
https://www.skoolie.net/forums/f49/w...tml#post460667
I have one of those flasher controllers. Thanks for the PDF.

The bus company I bought my bus from cut all the wires to it.
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Old 06-01-2022, 12:02 PM   #5
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thank you!
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Old 06-15-2022, 04:34 PM   #6
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Quote:
Originally Posted by ewo1 View Post
That yellow box is the flashing control box for the red and yellow lights for when passengers are picked up and dropped off.

Post #2 has a Weldon pdf doc that will explain more.
https://www.skoolie.net/forums/f49/w...tml#post460667
I have a 2003 ad ripped all of that out. Some of the wire went to the bcm which I just capped and some ran to back of bus controlling clearance and marker lights. They ran off one of the relays and they also controlled the clearance and marker lights in the front. All of those lights leaked and I replaced them with new leds and ran 16 ga wire to back and front and connected them to a fuse under hood that only lit up when ignition was on. I saved all that junk and the wire is good BUT DON'T DO WHAT I DID. You figure it out on your own and make the decision. In later models, that might have been a bus killer. Download the wire diagrams for 1998-2003 chevy express 3500 for the markers etc. Mine came from a school district and they may have messed with the harness to the rear and it may pose other issues I did not face.
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Old 02-08-2024, 11:29 AM   #7
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Electrical issues

Hello my name is Nesko,, and this is my first time to be on this site, I just registered and create my account in here.
I need a little help with the electrical panel in my mid bus, it is 2001 GMC Savana 3500 mid size School bus.
I need wiring diagram for the electrical panel that controls lights blinkers and tail lights.
My brake light works my blinkers works but the rest of the things that's not when it comes to tail lights the rest of the lights on the back and a rooftop.
So I need help whoever can send me a diagram or pointed to where I can find it.
Thank you.
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Old 02-08-2024, 12:13 PM   #8
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Hello, do you have original wiring diagram for electrical panel in your bus
I have 2001 GMC Savana 3500 that is mid size School bus .
I'm trying to figure it out how to make it work and strip out extra wires that I don't need.
Right now my tail lights don't work but I don't have a diagram I don't know how to hook him up and make it work.
Thank you very much in advance.
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