Welcome to the North American Subaru Impreza Owners Club Monday October 23, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Technical > Subaru Conversions

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 03-07-2006, 01:16 AM   #1
Scooby Newbie
Member#: 106141
Join Date: Jan 2006
Location: Seattle area
Default Integrating cruise control '04 STi/Vanagon

I need some suggestions on the best way to integrate the cruise control from a '04 STi into my Vanagon. I'm in the beginning stages of building the wiring harness for the conversion and would like your suggestions as what would be the best cruise control swithces to use.

I'm not very familiar Subarus. I know that I will need to adapt the cruise control stalk to fit the Vanagon, but which Subarus came with the stalk (versus integrated into the steering wheel) and of those which (if any) would be easiest to adapt to the '04 STi ECU?

For that matter, I don't really even know what the '04 STi controls look like. Is it all one switch? could it be moved to a seperate box or dash mounted? Pictures would be cool.

Any ideas would be helpfull. Thanks!
* Registered users of the site do not see these ads.
Schimke is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 03-07-2006, 03:04 AM   #2
Scooby Newbie
Member#: 56520
Join Date: Mar 2004
2002 WRX


The oem controls are as following.. a "on swith" which is on the dash this turns the system on and is ready.
another switch is mounted on the steering wheel so you can turn the cruise control on and adjust speed up or down or resume to previous cruise speed.
I would suggest getting a factory harness to work with, if this is not possible get the manual for the STI and trace the wiring diagrams.

good luck.
02Toyowrx is offline   Reply With Quote
Old 03-07-2006, 08:39 PM   #3
Scooby Newbie
Member#: 106141
Join Date: Jan 2006
Location: Seattle area

Ah, that make sense now. Thanks.

So did any of the Subaru's come with an "all-in-one" cruise control unit that could be adapted? My only concern with using a STi unit is that no one seems to want to seperate the control unit from the steering wheel and you all know what the STi steering wheels sell for. If I could find a damaged steering wheel..............Hmmmm.

I do have the entire harness to work with, but I still have no idea if a different year cruise control stalk would "talk" to the ECU properly.
Schimke is offline   Reply With Quote
Old 07-14-2006, 01:03 PM   #4
Scooby Newbie
Member#: 48968
Join Date: Nov 2003
Location: montreal
1999 impreza 2.5RS


arent 04 STi's DBW... in which case the cruise control is integrated into the system since the throttle body is servo actuated. In which case I believe you need to the oem ECU for the engine (which you will probably have) and the steering wheel for the controls.
subenick is offline   Reply With Quote
Old 07-14-2006, 01:23 PM   #5
Scooby Specialist
Member#: 2213
Join Date: Aug 2000
Chapter/Region: NESIC
Location: Raymond, NH USA
1995 Impreza w/EJ255
Brilliant Red


The STI cruise control is all ECU based because of the DBW. If you are using the STi ecu you can use what ever controls you want including buttons from radio shack. You just need to make sure they send the ecu the proper signals. The ecu wiring diagrams state what signal it's looking for, and the specific wires for cruise control. http://www.northursalia.com/modifica...ng/wiring.html go here and you will find the wiring diagrams for the sti, its further down the page.
yebokmj is offline   Reply With Quote
Old 07-14-2006, 03:24 PM   #6
Scooby Newbie
Member#: 30695
Join Date: Dec 2002
Chapter/Region: MWSOC
Location: Does your mother sew?
BOOM , Get her to
sew THAT!


Yep, it's pretty easy once you compare the systems, but matching them up can be confusing if you don't go straight to the ECU Pinout. They all have basically 4 circuits 6 features. None are variable voltage signals.

1-12V Res/Accel
1-12V Set/Decel

12V to both = cancel

1-12V arm cruise
1-12V Loop for Clutch/Brake Deactivate

I am using my 98 Leg controls for the STi cruise, works like a charm. I really like Subaru's all in one "tab".
UTCiv is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
easiest way disconnecting cruise control cable from TB, cruise control removal 02-03 fastwrx25 Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 4 09-21-2008 07:30 PM
'04 STI cruise control unit HowardR Interior/Dressup/Audio & Security 2 07-10-2007 07:26 PM
'04 STi cruise control wiring BluSTi Electrical & Lighting 2 04-08-2007 01:06 PM
problem with the cruise control on '04 STi Spooled04STI Electrical & Lighting 2 12-25-2005 09:19 PM

All times are GMT -4. The time now is 07:00 PM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.