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2017 Silverado X115 connector pinout.

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Old 01-21-2023, 08:01 AM
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Default 2017 Silverado X115 connector pinout.
I'm trying to make a stand alone harness. The X115 connector has a lot of wires that don't go back to the ecm. I'd really like to know what I'm dealing with before I just remove them.
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Old 01-21-2023, 07:29 PM
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lt1swap.com has a spreadsheet and details of how to convert to standalone config. gmupfitters.com has factory diagrams if you need them too. look for body builder manuals.
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Old 01-23-2023, 07:15 AM
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Originally Posted by aknovaman
lt1swap.com has a spreadsheet and details of how to convert to standalone config. gmupfitters.com has factory diagrams if you need them too. look for body builder manuals.
I've got the 1256 page Upfitter PDF, it's painfully difficult going system by system that might or might not pass through that connector. After 300 pages I have 5 of the wires in that 53 pin connector. LT1 swap has up to 2014 or15 which is different. Those are good sources that you recommend and I appreciate the reply. So far they aren't much help though.
Last edited by rubrhammer; 01-23-2023 at 08:43 AM. Reason: Additional info
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Old 01-23-2023, 08:45 AM
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I learned today by accident that I could search the Upfitter 1256 page PDF for X115! On page 998 the description and pinout starts for that connector.
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