Body harness questions - power windows, etc

davepl · Poncho Master!

Body harness questions - power windows, etc

409Safari · Addicted!

Looks like convertible got their own wiring harness for the rear quarter electric windows......#872 1594

1969 Body Wiring-01.jpg

1969 Body Wiring-02.jpg

1969 Body Wiring-03.jpg

davepl · Poncho Master!

But that makes it seem like the rear quarter window harness is -separate- or additional whereas mine seems to be part of the main harness. Grafted right into it, not plugged in. Or I haven't found the plug!

Or maybe I have a more fundamental misunderstanding. Maybe this harness is JUST doors and the body harness is separate. I've got to go look now! I've never had a power window car or a convertible so a lot of this is new to me.

seventy2plus2 · Canadian Poncho Superstar!

I harvested the entire power window setup from the 69 2+2 hdtp I got for it's chassis, and I'm pretty sure the power window harness was separate from the body harness. The body harness has the flat connector that connects on the firewall, it only has so many slots in it and wouldn't have enough room for the power windows.

North · Guru

It is a separate harness but it shares the plastic duct that runs under the drives seat with the main body harness which has the taillights, fuel gauge etc. The wiring for a power trunk, power antenna or rear speaker run under the passenger seat.

davepl · Poncho Master!

That'd make sense but if its true, they were separated before I got them because there's only one harness bundle in the plastic channel.

The LMC Truck catalog has a great "map" of where the harnesses go. I need a similar map! That catalog page above is close but not that easy to read. I'm hoping the assembly manual has some details because I've cleaned up and detailed a bunch of wiring channels also that I've never seen before so I don't know where they go. My coupe has power windows, but I'm not pulling up the carpet to look!

Not being there when it was taken apart + never having seen one + incomplete == ???

At least there's no dome lamp harness in a convertible, that's one down!

NOS · Poncho Master!

but a convertible has rear courtesy lamps in the rear arm rests.

dale

-- Edited by NOS on Thursday 1st of February 2018 04:18:23 PM

4SPEED427 · A Poncho Legend!

This is all new to me. I've stripped lots of power window kits out of 64-70 GM's but I don't know if I've ever seen the PW harness as part of another harness. It's always been super easy to remove because it was totally isolated, other than sharing a path on the floor with some other wiring.

luppy · Addicted!

Was at my sons place of work this morning to see what he was working on. They are doing a resto on a 67 Olds(not the same but?). It has power windows, he doesn't think original. I took a couple of pictures which may help. Hopefully!

Luppy

4SPEED427 · A Poncho Legend!

Yes, that's what I'm used to seeing in those years.

seventy2plus2 · Canadian Poncho Superstar!

NOS wrote:
but a convertible has rear courtesy lamps in the rear arm rests.
dale

-- Edited by NOS on Thursday 1st of February 2018 04:18:23 PM

Sometimes yes, more often no. My 70 2+2 rag doesn't have them.

davepl · Poncho Master!

Assuming power top is purple and grey, I think I've got it figured out! My confusion stemmed from the shared conduit. There's a run of an extension cable (more or less) for the tail light harness as well as the power window harness and the convertible top harness. I've got them laid out on my floor and they make sense now.

seventy2plus2 · Canadian Poncho Superstar!

Purple & grey, that sounds like a rear window defogger. I'll have to check my info.

davepl · Poncho Master!

Maybe for an electric defog of a big window, but it's like 10ga wire so I think it's gotta be for the top motor. I've got it laid out on the floor basically how it'll go in the car, and it seems to make sense.

Convertibles get additional under-dash courtesy lights in Canada, which was also a coupe option, but standard on the convertible. No rear lights that I know of.

If I had a bunch of spare time I'd like to make a big wall-sized wiring diragram from the shop manual and color code and it print it as a "Fat Head" for my shop wall. But it'd be a lot of color coding!

seventy2plus2 · Canadian Poncho Superstar!

Defog are smaller wires (and one of them is the resistive wire with the braided jacket) so it sounds like you're on the right track with the power top. The colors just don't sound right though.

seventy2plus2 · Canadian Poncho Superstar!

Re the footwell courtesy lights, I added them to my 2+2 hdtp, and have a couple spare sets around.

seventy2plus2 · Canadian Poncho Superstar!

12 gauge purple & grey are for the power top. They're red & dark green from the switch, into purple & grey in the harness, then back to red & green at the pump.

4SPEED427 · A Poncho Legend!

Love it when they do stuff like that with wiring colours.....

You gotta wonder what the purpose was in doing that.