CAN Wiring color codes for the BUS

2002 DODGE RAM
122,000 MILES • 4.7L • V8 • 2WD • AUTOMATIC
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ALTASNOWMAN
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Hi, I am looking for the color codes for the BUS and the other wiring from the computers to the dash and fuse block. Also am looking for where the modules are in the My truck listed above is a 1500 SLT.
Aug 2, 2019 at 7:37 AM
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SCGRANTURISMO
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Hello,

I have included all the information that you have requested in the diagrams down below. Please go through these wiring diagrams and component locations and let us know if you need anything else. That's why we are here.

Thanks,
Alex
2CarPros
Aug 2, 2019 at 8:47 AM
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ALTASNOWMAN
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Thanks Alex. will let you and everyone else know how I made out when I go and work on truck. Just too hot here today for me 30C+ right now.
Aug 2, 2019 at 1:15 PM
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STRAILER
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That is hot! SCWICKEDSTANG is one of our best. Please let us know what happens.
Aug 5, 2019 at 1:34 PM
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ALTASNOWMAN
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will do Ken.
Aug 5, 2019 at 4:34 PM
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ALTASNOWMAN
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Hi Ken, It is looking like a broken wire somewhere. Will update when I find it.
Sep 12, 2019 at 12:00 PM
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ALTASNOWMAN
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Hi Alex, thanks for the wiring diagrams. They will be a great help when I start tracing the bad wire.
Sep 12, 2019 at 12:12 PM
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STRAILER
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This guide should help:

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

Please let us know what you find. We are interested to see what it is.
Sep 13, 2019 at 10:16 AM
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ALTASNOWMAN
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when I did some testing fuse #23 was pulled and all dash and Inst came back but now no remote starter,doorlocks and a few others. Sorry it took so long as truck quit on me and I think the alternator went. Will update soon.
Jul 30, 2021 at 4:01 AM
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DANNY L
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Hello, I'm Danny.

Let us know if you need any additional wiring diagrams as we're still here to help. Here are a few tutorials showing how to remove the serpentine belt and alternator you mentioned that may have failed:

https://www.2carpros.com/articles/replace-serpentine-belt

https://www.2carpros.com/articles/how-to-replace-an-alternator

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

Most local auto parts stores will test an alternator for free. I've attached picture steps below on how to remove and replace the serpentine belt and alternator on your truck. Keep us updated. Hope this helps and thanks again for using 2CarPros.
Jul 31, 2021 at 9:32 PM