SC430 - 2nd Gen (2001-2010)

Quarter window mod part deux

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Old 04-13-11 | 12:07 PM
  #61  
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Originally Posted by irokdastar
i have read your post i am just used to bmw diagrams. this is my first lexus and i am trying to be as careful as possible.

here is were i am stuck in the last pic of the completed relays. you have 2 blue and 2 yellow wires from relay one and 2 blue and 2 yellow 1 red and one yellow.

this is how i understand it.
.
now i know the black gets grounded
red goes to the package tray and you switch to 30amp fuse ( whats a package tray ) again no used to lexus.

one set of yellow and blue from no 1 relay gets spliced into the cpu 4 wires for both windows

and the other sets from relay 2 go to the switch.

tell me were i am wrong. sorry to take ure time but i just dont want to mess up
Hi star,

I am fairly good with mechanical things on cars but not so much the electrical/electronic stuff.

So, not wanting to fry my computer, I had mine done at my indie mechanic. You can Google 'The Toy Doctor' in Tualatin, OR and then contact them for some info.

I used a switch that is a 'deadman' in that I have to hold it down in either direction to keep the windows moving. My switch is mounted right on top of the coin holder and looks like it belongs there.

If you would like a photo, contact me at:

jerrybaumchen(at)gmail(dot)com

Best of luck,

Jerry Baumchen
Old 04-13-11 | 12:58 PM
  #62  
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Ok so i drew up a diagram quick of how i am understanding this. The one thing that confuses me is
1. When i get the switch what wire do i wire them up to?
2. Where do i get the positive power for the red wire.

-----------------------------------------
thank you
Attached Thumbnails Quarter window mod part deux-untitled.jpg  
Old 07-24-11 | 08:41 AM
  #63  
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Many thanks to those who provided such detailed instructions that even I could easily do this mod. I put my "perfectionist" touches to this mod, but essentially followed their instructions:

I assembled my relays and wires (I used spade connectors) before I ever touched the car:
Quarter window mod part deux-img_1701s.jpg

Here's what it looks like in the trunk:
Quarter window mod part deux-img_1702.jpg
Quarter window mod part deux-img_1704.jpg

I labeled the wire colors so I'd know what I did later:
Quarter window mod part deux-img_1705.jpg

Final look:
Quarter window mod part deux-img_1744s.jpg

Thanks for the great mod
Old 07-24-11 | 11:49 AM
  #64  
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looks great. i am waiting to get some parts to star this mod. btw were did you get the relays from?
Old 07-24-11 | 04:41 PM
  #65  
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Originally Posted by irokdastar
looks great. i am waiting to get some parts to star this mod. btw were did you get the relays from?
Below is everything you need, a complete list, more than you need if you aren't using spade connectors or quick disconnects). Specifically the relays are line 7 & 8.

line 1: 20 feet of three wire to run from relays to the new switch (20 feet is more than enough, but I also used this same wire stripped individually to wire the relays)
line 2: 100 count male connectors (only need 4, used with line 6)
line 3: 100 count spade terminals (only need 32 to connect to relay sockets)
line 4: 25 count female connectors (only need 3 to connect to switch)
line 5: SPDT switch
line 6: 25 count self strip t-tap connectors (first time I've seen these, self taps into existing car wire without cutting or stripping and then provides a female tap that the above male connectors plug into) makes it real easy to unplug if ever a problem
line 7: 2 relays
line 8: 2 relay sockets

not listed on invoice (because I already had them): 8 count shrink-wrap butt splice connectors to connect new relay wires to existing car wires

Quarter window mod part deux-scan0248.jpg

Have fun,
Don

Last edited by donsmith; 07-24-11 at 05:05 PM.
Old 07-24-11 | 07:00 PM
  #66  
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Originally Posted by donsmith
Many thanks to those who provided such detailed instructions that even I could easily do this mod. I put my "perfectionist" touches to this mod, but essentially followed their instructions:

I assembled my relays and wires (I used spade connectors) before I ever touched the car:
Attachment 217148

Here's what it looks like in the trunk:
Attachment 217149
Attachment 217150

I labeled the wire colors so I'd know what I did later:
Attachment 217151

Final look:
Attachment 217152

Thanks for the great mod
Hi Don,

Thanks for the info on uploading photos; now let's see how it goes.

If all goes well, here is a photo of my switch & its location.

I like it a lot and (yes, I'm biased) think that it looks sorta 'stock' or as if it belongs there.

Jerry Baumchen
Attached Thumbnails Quarter window mod part deux-switch-1.jpg  
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Old 07-26-11 | 04:16 PM
  #67  
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After carefully reading (over and over) Lexiss SC430’s instructions, I came up with what I believe is the “long awaited” wiring diagram for the quarter window mod.



To all that have performed this mod, please feel free to verify and confirm the accuracy of this diagram.

Thanks Lexiss SC430 for the detailed instructions.

Download the PDF for clearer image.

NOTE: The switch must be a "Momentary on-off-on" type.
Attached Thumbnails Quarter window mod part deux-window-mod.jpg  
Attached Files

Last edited by scyul; 07-26-11 at 07:44 PM.
Old 07-26-11 | 10:12 PM
  #68  
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Originally Posted by scyul
After carefully reading (over and over) Lexiss SC430’s instructions, I came up with what I believe is the “long awaited” wiring diagram for the quarter window mod.



To all that have performed this mod, please feel free to verify and confirm the accuracy of this diagram.

Thanks Lexiss SC430 for the detailed instructions.

Download the PDF for clearer image.

NOTE: The switch must be a "Momentary on-off-on" type.
Hi scyul,

After looking at that diagram here & in the other thread is why I had mine done.

Jerry Baumchen
Old 07-27-11 | 08:01 AM
  #69  
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Originally Posted by JerryB
Hi scyul,

After looking at that diagram here & in the other thread is why I had mine done.

Jerry Baumchen
I'm sure this will help some of us with the project...
Old 09-03-11 | 01:57 PM
  #70  
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Well... It's done... Finally!
After thinking about it for a long time, I completed the project today. And it works great!
Followed exactly the schematic I drew. The ground is attached to one of the stud/nut in the trunk, and I took the 12v (switched) from the cigarette lighter wire in the center console. I installed the switch next to the trunk/gaz door buttons...
Attached Thumbnails Quarter window mod part deux-rear-window-switch.jpg  

Last edited by scyul; 09-03-11 at 02:07 PM.
Old 07-21-16 | 03:16 PM
  #71  
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Hey all, going to attempt this mod soon enough with some help. Does anyone have a full complied DIY, start to finish?
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