Quote:
Originally posted by Kmvreter
That's ingenious how you pulled this together. Obviously lots of research, planning and work. Props!
Now the start of question period...
Would it be possible for you to do a more detailed writeup of this mod with pics?
Where did you place the relays?
At what location did you cut/splice the wires (in each door or in a main harness?)
Can you cross reference your schematic to the Toyota wiring diagram where possible?
I'm assuming you already had the Autopage keyless entry system so that wasn't part of your costs. Is it possible to do this with the T4R stock keyless entry (ie. does the stock system use a path to ground for the rear window activation?)
Thanks.
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Thanks for all of the positive feedback guys! I'll take a video and post it soon.
I didn't take any pictures during the install, but I can give you some pointers that would help you out if you want to do the same thing to your 4runner.
1 - There's room for the relays behind the kick panel near the driver's left foot. I mounted mine on a proto-board and secured them above the wiring down there.
2 - I used a Chilton's manual and commandocaralarm.com's wiring diagram to find most of the wiring I needed to get at.
wiring descriptions
3 - To get at the wiring for the driver's window you have to take off the driver's door panel.
4 - The wires for every passenger window except for the driver's are all easily accessible below the interior fuse box (right where the wiring comes in from the driver's door). The ignition wire and constant 12V are located under the steering column.
5 - To control the back window and the moonroof I ran wiring from each of those switches to my relay circuit in the kick panel. There might be a way to access each of those connections from somewhere in the kick panel, but I didn't bother looking.
6 - I don't remember the exact colors of each wire I spliced, so I can't give you that. I can tell you how to figure it out though. To do that I need to give you some background on how the windows work.
7 - The moonroof and the rear window work differently that the other 4 windows. When you press "DOWN" on the rear window switch you're really connecting ground to a wire that's normally not connected to anything. So if you want to figure out which wire you need to ground to roll the window down take a voltmeter and probe each wire on the rear window switch harness until you find the one that becomes 0 volts when you press "DOWN". FYI, there's different wire that does the same thing when you press "UP". The moonroof works the same way. So for each of these all you need to do splice in a wire that is grounded when you want to roll the window down.
8 - For the each of the passenger windows there is a wire that is normally grounded, but becomes 12V when you press "DOWN". Probe the wires that come in from the driver's side door below the fuse box to find the wire that changes when you press "DOWN" for each window. They're all very close to eachother, so once you find one you'll easily find them all. The only catch is that the wire that control's the driver's window is actually located in the driver's door panel. So controlling that one requires taking off the driver's door panel and running two wires into it. Anyway, because the wire is normally grounded you cannot simply slice in a wire and put 12V on it when you want to roll down the window. If you do you'll short out your battery (12V) to ground and melt some wires. Instead, you have to temporarily break the connection with a relay. The relay works like a two-way switch (lookup SPST switch on wikipedia). If you wire the relays like I have in my schematic the passenger window down motors are connected to their respective touch switches unless the control signal from the alarm is present, in which case all of the passenger motors are connected to 12V which causes them to roll down.
9 - I don't think this would work with the factory alarm because I used a feature of my Autopage alarm that allows me to program how long my control signal is present for. I'm not sure if the factory alarm has that feature.
I hope I answered your questions Kmvreter. This is a complicated project that will take some time to do right, but when you're done it looks pretty cool. I'm sure you could have it professionally done for some big bucks, but it's much cooler knowing that you did it yourself.