How To: Half Manual / Half Power Window

[KiLLeR2001]

Ok. This is THE guide to a simple modifcation that I like to do to my S13's. Half manual / half power window. I have always loved the ability to roll up the window, but hated to have to lean over to roll down the passenger side window. This is the solution.

Supplies needed:

Power window regulator.
Power window door panel.
Power window switch.
Power folding mirror switch.
2 bosch relays.
12ga wire.
18ga wire.
Soldering iron.
20A fuse.
30A fuse holder.
Electrical tape (or heat shrink).


I'll try to make this as simple as possible. First thing is first. DISCONNECT THE BATTERY!!!

Make sure you have all the supplies you need to make solid electrical connections.

Here is the diagram we will be working with:


Thanks to zooopreme for the optimization.

Bosch Relay guide:

85 = ground switch signal
86 = constant 12V
87 = constant 12V
87a = ground
30 = to window regulator (up/down)

Here is the list of connections to make amongst the relays and both switches:

I will label the relay that controls the window up function as UP and window down function as DOWN.

[UP][87] ==> 12v
[UP][86] ==> 12V
[DOWN][87] ==> 12v
[DOWN][86] ==> 12v

Join all these wires together with a 12gauge wire. You will be running this directly up the firewall into the engine bay to the battery. You will join this wire to a fuse holder, which will be holding a 20A fuse. The other end of the fuse holder will be the connection to the battery. Do this as you see fit for your application.

[UP][87a] ==> Ground
[DOWN][87a] ==> Ground

Join these together with 12gauge wire and ground them onto the door somewhere.

[UP][85] ==> Green wire of pass. switch + black wire of console switch.

You will join the green wire from the passenger switch with the black wire of the power folding mirror switch together with 18gauge wire and then
join those two together to the UP relay's [85] position.

[DOWN][85] ==> Blue wire of pass. switch + blue w/ white stripe wire of console switch.

You will join the blue wire from the passenger switch with the blue w/white stripe wire of the power folding mirror switch together with 18gauge wire and then join those two together to the DOWN relay's [85] position.

You will shortly see how you need to route these wires from plain sight. Removing the glove box is a must!

[UP][30] ==> Green wire of regulator
[DOWN][30] ==> Blue wire of regulator

Now, if you don't have the pigtail for the power window regulator. You will need to figure out which wire does what based on polarity. I don't remember off hand. You can do this by directly applying power and ground to the regulator's plug but be careful not to touch them together!

The only other connections left to make are the actual ground sources for the switches. At this point you will need the center console off and the glove box as well.

For the power folding mirror switch, take the purple w/ white stripe wire and ground it somewhere to the chassis in the ebrake area. You will see a few locations to do this.
Choose one that suits your needs.

For the passenger side switch, take the white w/ black stripe wire and ground it to the passenger door somewhere.

Thats it! Before putting everything back together, plug the battery in and make sure both switches as well as the relays are functioning as they should.

Here are some pictures to go along with this process to better help...



As you can see, these are the connections for the pass. window switch pigtail.



This is the power folding mirror switch, only three wires are used. The rest are taped up and tucked away.





Here you can see the [87a] wires from both relays connected to a single ground wire which is grounded to the door.



Center console and glove box removed.

And the finished product...





I'm sure there will be plenty of questions so don't hesitate to ask!

Thanks for reading!

[coupesallday!]

That's cool I might just do this

[zooopreme]

Finally, I've been meaning to ask you how you did this but you beat me to it.

Wish your diagram was better though lol.

[KendallH]

This "mod" is stupid and your soldering is sloppy. Can't believe you're fucking up that two tone already.

[rcdad123]

i will be using the diagram to wire up the bosch relays to replace the stock one thats on my son`s coupe. thanks for sharing.

[KiLLeR2001]

Originally Posted by KendallH

This "mod" is stupid and your soldering is sloppy. Can't believe you're fucking up that two tone already.

All my soldering joints penetrated and are holding just fine. Thanks for your input. If you have nothing to ask me directly then you need not reply anymore.

[zooopreme]

Your Microsoft Paint diagram was killing me, lol. Didn't take me forever to make this, if you want it:

[didderson]

You're weird, but that's a pretty slick way to add a power window for just 1 side. Weight savings?

[holemilk00]

Haha its less work to put power doors on both sides.

[shaggy sr]

Originally Posted by KiLLeR2001

Ok. This is THE guide to a simple modifcation that I like to do to my S13's. Half manual / half power window. I have always loved the ability to roll up the window, but hated to have to lean over to roll down the passenger side window. This is the solution.

Supplies needed:

Power window regulator.
Power window door panel.
Power window switch.
Power folding mirror switch.
2 bosch relays.
12ga wire.
18ga wire.
Soldering iron.
20A fuse.
30A fuse holder.
Electrical tape.


I'll try to make this as simple as possible. First thing is first. DISCONNECT THE BATTERY!!!

Make sure you have all the supplies you need to make solid electrical connections.

Here is the diagram we will be working with:



Bosch Relay guide:

85 = ground switch signal
86 = constant 12V
87 = constant 12V
87a = ground
30 = to window regulator (up/down)

Here is the list of connections to make amongst the relays and both switches:

I will label the relay that controls the window up function as UP and window down function as DOWN.

[UP][87] ==> 12v
[UP][86] ==> 12V
[DOWN][87] ==> 12v
[DOWN][86] ==> 12v

Join all these wires together with a 12gauge wire. You will be running this directly up the firewall into the engine bay to the battery. You will join this wire to a fuse holder, which will be holding a 20A fuse. The other end of the fuse holder will be the connection to the battery. Do this as you see fit for your application.

[UP][87a] ==> Ground
[DOWN][87a] ==> Ground

Join these together with 12gauge wire and ground them onto the door somewhere.

[UP][85] ==> Green wire of pass. switch + black wire of console switch.

You will join the green wire from the passenger switch with the black wire of the power folding mirror switch together with 18gauge wire and then
join those two together to the UP relay's [85] position.

[DOWN][85] ==> Blue wire of pass. switch + blue w/ white stripe wire of console switch.

You will join the blue wire from the passenger switch with the blue w/white stripe wire of the power folding mirror switch together with 18gauge wire and then join those two together to the DOWN relay's [85] position.

You will shortly see how you need to route these wires from plain sight. Removing the glove box is a must!

[UP][30] ==> Green wire of regulator
[DOWN][30] ==> Blue wire of regulator

Now, if you don't have the pigtail for the power window regulator. You will need to figure out which wire does what based on polarity. I don't remember off hand. You can do this by directly applying power and ground to the regulator's plug but be careful not to touch them together!

The only other connections left to make are the actual ground sources for the switches. At this point you will need the center console off and the glove box as well.

For the power folding mirror switch, take the purple w/ white stripe wire and ground it somewhere to the chassis in the ebrake area. You will see a few locations to do this.
Choose one that suits your needs.

For the passenger side switch, take the white w/ black stripe wire and ground it to the passenger door somewhere.

Thats it! Before putting everything back together, plug the battery in and make sure both switches as well as the relays are functioning as they should.

Here are some pictures to go along with this process to better help...



As you can see, these are the connections for the pass. window switch pigtail.



This is the power folding mirror switch, only three wires are used. The rest are taped up and tucked away.





Here you can see the [87a] wires from both relays connected to a single ground wire which is grounded to the door.



Center console and glove box removed.

And the finished product...





I'm sure there will be plenty of questions so don't hesitate to ask!

Thanks for reading!

great thread! i gotta do it and what abt rhd one?

[KiLLeR2001]

Originally Posted by zooopreme

Your Microsoft Paint diagram was killing me, lol. Didn't take me forever to make this, if you want it:

[IMG]

lmao. Thanks, I'll use it.

[Homeboyx]

Why solder only to use electrical tape? Why not use heat shrink?

[KiLLeR2001]

Originally Posted by Homeboyx

Why solder only to use electrical tape? Why not use heat shrink?

I have an abundance of electrical tape and no heat shrink. Everyone has their own way of doing electrical work. Do what you feel is the best method.

[Jtuned_andy]

This is some mickey mouse shit if ive ever seen it....

[jr_ss]

I expected a cleaner install than this Stephen... Yes, everyone may have their way of doing things, but that doesn't mean it's the right way. Radio shack sells heat shrink for christs sake. Eh, I guess you're tag says it all.

KiLLeR2001
Not A Single Fuck Was Given

[KiLLeR2001]

Originally Posted by jr_ss

I expected a cleaner install than this Stephen... Yes, everyone may have their way of doing things, but that doesn't mean it's the right way. Radio shack sells heat shrink for christs sake. Eh, I guess you're tag says it all.

Lol, it's Steven. I'm not about to turn this into an electrical tape vs heat shrink debate. If you want to use heat shrink, by all means please do.

Most people won't do something like this, as you can easily switch to all power. But for some this is a viable option. If this guide helps just one person I'd be content.

Thanks for the response!

[jr_ss]

Originally Posted by KiLLeR2001

Lol, it's Steven. I'm not about to turn this into an electrical tape vs heat shrink debate. If you want to use heat shrink, by all means please do.

Most people won't do something like this, as you can easily switch to all power. But for some this is a viable option. If this guide helps just one person I'd be content.

Thanks for the response!

My apologies on the name mispell. I'd prefer that it not be made into one either, I guess I just expected more from ya that's all.

It does help those that are lazy and can't lean over though, I'll give ya that...

[HPKMotorsports3]

nice write up OP

[Frank_Jaeger]

Killer, could you do a half power / half manual sunroof tutorial next? Thanks man, appreciate it!

[holemilk00]

You should 5 lug swap just the drivers side. It's the side you see most often anyway.

[KendallH]

Originally Posted by Frank_Jaeger

Killer, could you do a half power / half manual sunroof tutorial next? Thanks man, appreciate it!

[Sr20Bluebird]

Originally Posted by holemilk00

you should 5 lug swap just the drivers side. It's the side you see most often anyway.

rofl!!!!!!

[Rpjohns3]

I cannot believe someone had to bring up the two tone. In my eyes that person is just jealous.

[ghoti]

Originally Posted by holemilk00

You should 5 lug swap just the drivers side. It's the side you see most often anyway.

For a day I was only 5lug in the front.

I had been waiting for this since you posted in the interior thread

Thanks for once OP was not a F___

[ghoti]

3yrs later I decided to finally do this. Here are some pictures to help out some of you do this mod.

First on 87a I didn't want to join the wires at the end since I think it looks ugly and adds unnecessary bulk. So I tapped into it mid way of one wire and soldered it. I think it's much better






This comes in handy much better when joining 86 & 87 of both relays. Soldered it at different lengths (staggered) for less bulk.


For the regulator I decided to keep the pigtail for practicality and it will make changing the regulator in the future if it ever goes bad.



For the passenger switch I de-pinned the unused wires for a much cleaner look.



I don't like crimping connectors because I feel over time they can come loose.


First step was taking off that plastic thingy. Then fold the wires out like and umbrella and pull them back for more contact.


Then crimp and solder. Heat shrink to finish it.



Here is pretty much the end result of the relay harness. Still needed to tap into the passenger switch with wire that leads to the center console for the power window switch part.


Decided to mount the relays here where the manual window crank use to be at.



End result pretty much

[KiLLeR2001]

Good work, ghoti. 3 years later my power window still works just fine, no issues whatsoever.

In 2012 I was all about soldering + electrical tape, but these days I do everything with butt connectors and heat shrink.