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Old 01-18-2006, 09:29 PM   #1
Clzay
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Default Wiring IC Sti Switch for intercooler spray pump?

Hello everyone,
I just ordered these parts from https://www.subarugenuineparts.com/ to due the intercooler spray mod. I have the Ver 7 spitter which already has the nozzles. I just need to know where and which wires to tap into?

OEM STi IC Water Spray switch - (83001FE020)
OEM Check Valve - (86634AG010)
OEM WAGON rear window washer pump (86611AC010)
OEM washer bottle grommet (686223030


After reading numerous post from scoobymods and clubwrx, I'm alittle confused? I have no electrical capablities, but with your help maybe I can do this the right way? I noticed you can use existing wires from the steering colum, or the driver kick panel to power the Sti switch??? Which ones are the easyest, wire color, which pins on the switch to use and pics would help? Also, will I need any connetors/plugs....ect or will I be able to sodier the wires to the switch? Also, using the rear wagon pump, shouldn't that just plug into my existing pump or will I need to wire that also. Please help with detailed pics of the best way to due this mod? Too many questions.... sorry

P.S. Just posted in Electrical & Lighting forum, but figured I'd get more help here. Thanks
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Old 01-19-2006, 01:17 PM   #2
Clzay
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bump for help on this...
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Old 01-19-2006, 01:20 PM   #3
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I recall seeing a thread on scoobymods.com with pics and all the answers to your quesetions.
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Old 01-19-2006, 01:52 PM   #4
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yeah... thanks I read though all of those, but was more unsure about the best way about doing this?
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Old 01-19-2006, 02:06 PM   #5
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There is a thread on clubwrx.net that I think bigskywrx wrote that is exactly what you want. It shows what wires to splice and everything. It is how I hooked mine up and has been working perfectly for well over a year.

I'll help you out as I am feeling friendly today.
http://www.clubwrx.net/forums/showth...hlight=sprayer
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Old 01-19-2006, 04:42 PM   #6
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Like subieworx said above, bigskywrx is the man. Follow his step by step instruction, you will figure out. I understand you might get confuse with the parts and pics, but once you take the panel off or start doing it, you will get it for sure. Note: you don't need to wire the pump, there is a white plug there for your wagon pump.
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Old 01-19-2006, 08:06 PM   #7
Clzay
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so what about the pins to connect to the switch, where might I find those???
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Old 01-19-2006, 08:14 PM   #8
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Are you talking about the spade connector? If so, I don't think you can find those in the hardware store. You might want to call around to see who got some used cruise control buttom with some wire still on it, then you can take the little pin connector out of it to use with the switch. For me, I will give Stephen a call at iaperformance.com and see if he got some.
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Old 01-19-2006, 08:39 PM   #9
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Quote:
Originally Posted by orwrx
Are you talking about the spade connector? If so, I don't think you can find those in the hardware store.
I was able to find some at a local home lighting/electrical supply warehouse. If you find some and decided to go this route, liquid tape will help to insulate the terminal ends from each other.
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Old 01-19-2006, 09:01 PM   #10
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I found a wrecked Forester a few years old. I took the harness and a foot of wires from the back of it's cruise switch. The switch is not same size but the harness fits the I/C button perfectly.
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Old 01-19-2006, 11:43 PM   #11
Clzay
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Quote:
Originally Posted by orwrx
Are you talking about the spade connector? If so, I don't think you can find those in the hardware store. You might want to call around to see who got some used cruise control buttom with some wire still on it, then you can take the little pin connector out of it to use with the switch. For me, I will give Stephen a call at iaperformance.com and see if he got some.
yeah thanks that would be great... whatever it takes. I just want to have everything before I do the install. The switch, pump, gromet and check valve came today, so I just need the spade connectors??? Anyone...
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Old 01-20-2006, 01:41 AM   #12
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How much did you pay for all that? Just compare price with subaruparts.com. Do you know if they take suby bucks? If you can wait a week or so, my friend actually wanted to do the same and I have to find him some used switch with those connector in school(automotive tech, but they don't open till I think another week), then I can get some for you. Free of course, just wanna help!
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Old 01-20-2006, 01:46 AM   #13
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It was $60 ship to me in two days, for the Sti IC switch, Rear wagon pump, Rubber gromet for the pump/to bottle, and check valve so the water doesn't flow back. Now I just need the spade connectors???
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Old 01-20-2006, 03:57 AM   #14
02WHITEDUB
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Quote:
Originally Posted by Clzay
It was $60 ship to me in two days, for the Sti IC switch, Rear wagon pump, Rubber gromet for the pump/to bottle, and check valve so the water doesn't flow back. Now I just need the spade connectors???
Read my previous post.

1. Find a wrecked Subaru
2. Cut the wiring harness to either the cruise or fog switch

The switch I got had an extra piece of white plastic on it but it popped right out.
Using an OEM harness is nice because you can connect/disconnect instantly and the wires out the back are all color-coded properly.

Here's mine in the background:

[IMG][/IMG]
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Old 01-20-2006, 12:32 PM   #15
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I wouldn't recommend the Suabru IC switch is used to directly power the water pump.
The current pulled makes the contacts arc and crackle well. Extened use of the button could cause a fire risk.
Use the switch to open up a power relay to the pump - Subaru fitted one for a reason.
Nick
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Old 01-20-2006, 07:46 PM   #16
02WHITEDUB
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Quote:
Originally Posted by STBnick
I wouldn't recommend the Suabru IC switch is used to directly power the water pump.
The current pulled makes the contacts arc and crackle well. Extened use of the button could cause a fire risk.
Use the switch to open up a power relay to the pump - Subaru fitted one for a reason.
Nick
Absolutely! I'll be wiring mine to a relay but will get the power for illumination by splicing into the cruise switch.
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Old 01-20-2006, 08:29 PM   #17
Clzay
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yeah I just got back from Pick & Pull, and I found a plug harness from and older Subaru, and cut it off. So that plug connects right to my Sti IC switch. Now I just need to figure out the pins and which wires to tap into, because the plug I got has five wires. But I really only need to use four... I believe? 2 wires tap into my cruise for lumination of the IC switch and fine the blue/back wire in my steering colum which runs to the rear pump, tap into that and then ground it??? How does that sound.... correct?
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Old 01-20-2006, 09:04 PM   #18
02WHITEDUB
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I don't know. I'm a n00b with relays so I'll be doing some more research. My sprayer hasn't been installed yet - I'm waiting until spring.

Search for 'pinouts' in post titles here and on scoobymods and you should find the same diagram I did for the back of the STi switch.
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Old 01-20-2006, 09:08 PM   #19
Clzay
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I think this is what I needed, maybe? Does this look right, for the pin outs on the back of the Sti switch? Four wires total?
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Old 01-21-2006, 04:11 PM   #20
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I'm going to try to do this mod today... fun stuff.
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Old 01-21-2006, 10:10 PM   #21
Clzay
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Just finished the IC spray mod! It was really easy, like you guys said... once I got into the steering colum I found the Blue/black wire. I spliced a quick connect, ran it to the switch for power to the rear spray pump. Then grounded the switch, and tapped into my cruise switch like the pic above for illumination. And the rear pump just plug into the harness, it was that simple. Only thing is, on the switch only the "waterspray" lights up, the "IC" above that doesn't??? You Sti guys the same way? Anyways... thanks again for the help!
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Old 01-22-2006, 05:49 AM   #22
STBnick
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Also forgot to mention that putting the pump current straight through the switch blows the illumination bulb fitted across pins 3 & 5.
You DID fit a power relay didn't you?? Its not clear from your reply.

Nick
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Old 01-22-2006, 12:55 PM   #23
WRobX
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How does one go about fitting a relay? Help a noob out....thanks
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Old 01-22-2006, 04:28 PM   #24
02WHITEDUB
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Indeed. Any advice or a pic of what type (rating or whatever) of relay to use and how exactly to wire it would be awesome!

Pins 2, 4, and 5 are simple enough.

Pin 3 goes to the relay, I guess...

Do you hook the relay up directly to the battery? With a fuse before the relay? How many amps on the fuse? What kind/rating of relay?

Thanks for any help!
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Old 01-22-2006, 05:27 PM   #25
Clzay
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Quote:
Originally Posted by STBnick
Also forgot to mention that putting the pump current straight through the switch blows the illumination bulb fitted across pins 3 & 5.
You DID fit a power relay didn't you?? Its not clear from your reply.

Nick
Thats odd? Why is it that the "waterspray" lights up, which is along the bottom across pins 3 & 5. And the "IC" which is above those doesn't light up??? Also, I tapped into the Blue/black under the steering colum for my power to the rear pump, shouldn't that aready have one?
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