Power Window Wiring....Routing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**spudder** · 01-22-2021, 11:32 AM

I'm planning to add OEM power windows to an '04 GMC 1500. After researching the net, my best bet is to use the wiring out of a '99-'02 truck. This will avoid all the BCM issues that relate to power window operation on '03-'07 trucks. As I understand it, using the earlier harness requires only an ignition power wire and a ground wire to complete the window wiring.
I want to know where the window wiring harness runs across the truck to the passenger side and where it exits the cab.
Has anyone done this swap? Any help appreciated.

**hatzie** · 01-22-2021, 08:05 PM

If you can get a look at the GM service manual for the donor year it'll have the wiring routing in the electrical section.
You'll have to dig for it. They don't make it easy to find.

01-22-2021, 11:32 AM	#1
spudder Active Member Join Date: Aug 2012 Location: Central Illinois Posts: 103	Power Window Wiring....Routing I'm planning to add OEM power windows to an '04 GMC 1500. After researching the net, my best bet is to use the wiring out of a '99-'02 truck. This will avoid all the BCM issues that relate to power window operation on '03-'07 trucks. As I understand it, using the earlier harness requires only an ignition power wire and a ground wire to complete the window wiring. I want to know where the window wiring harness runs across the truck to the passenger side and where it exits the cab. Has anyone done this swap? Any help appreciated.

01-22-2021, 08:05 PM	#2
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: Power Window Wiring....Routing If you can get a look at the GM service manual for the donor year it'll have the wiring routing in the electrical section. You'll have to dig for it. They don't make it easy to find. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.



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