Installing Power Windows

From R31 Skyline Club Wiki

Power windows in the 31[edit]

Installation[edit]

First you start with all the gear from a wrecked Ti. Grab the interior loom if you can. I first tried to completely substitute the Ti interior loom, but smoke started coming out of the fusebox. I think it came down to Ti's having a different fusebox layout, whilst the plugs for that part of the loom are interchangeable with the GXE fusebox (meaning it will plug straight in), I recall the Ti one uses a slightly different circuit layout. So possibly the wires within the plug were swapped around to other locations in the plug, hence the smoke. Therefore I had to separate out just the power window part of the loom, and add it to my car.

Start with this:

Then mallester it to form this:

It's simply a matter of swapping out your current manual window regs and rails, and replacing them with the electric motors and rails from a Ti. There is much fun to be had routing the new looms through the existing door and body rubber grommets let me tell you :-X

While you're doing the back doors, rip out the rear seat and throw down some sound deadening to keep that diff quiet:

At this point once all the gear was in, I admit that I cheated ::) as I sent her off to the auto elec to to wire it up for power! Although all the hard work was done by myself prior, so it wasn't expensive or time consuming to have it finished off.

And finally you should get this, oh and give the trims a lick of paint if you wish:

Cheers.

Wiring[edit]

Couple of wiring diagrams - click for larger image:

This diagram preserves the auto down function. The leftmost relay coils will latch in and keep the motor connected. But VERY IMPORTANT you must feed the power to your windows through a fuse and a polyswitch. The fuse is just to protect the wiring in case of a short. The polyswitch is to disconnect power to the circuit when the window reaches the bottom. The motor stalls when the window stops at the bottom, and the motor current increases dramatically. This current trips the polyswitch, the relay drops out, everything returns to rest. If you don't use the polyswitch, the motor will not turn off when the window reaches bottom, unless you flick the up switch.

To work out what polyswitch you'll need, measure the run current and the stall current of the motor, then select something in-between. Jaycar has a prime on using polyswitches.

http://jaycar.com.au/images_uploaded/polyswit.pdf

This diagram is only manual up and down. A fuse is still essential. A polyswitch is a good idea, stop the motor supply after stalling.