Welcome to the North American Subaru Impreza Owners Club Wednesday July 29, 2015
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Electrical & Lighting

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.
Reply
 
Thread Tools Display Modes
Old 11-13-2002, 07:18 PM   #1
John #555
Scooby Newbie
 
Member#: 27651
Join Date: Oct 2002
Location: OC, CA
Vehicle:
2002 WRX

Question possible to bypass cruise control button?

I do alot of fwy driving and am always annoyed by the fact everytime I start the car I have to turn on the Cruise Control.
Is there a way to have it connected all the time? I can probly put that button to better use anyway, like i/c spray?
Thanks in advance...
* Registered users of the site do not see these ads.
John #555 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 11-14-2002, 12:59 AM   #2
John #555
Scooby Newbie
 
Member#: 27651
Join Date: Oct 2002
Location: OC, CA
Vehicle:
2002 WRX

Default

anyone? ...
John #555 is offline   Reply With Quote
Old 11-14-2002, 01:29 AM   #3
interiot
Scooby Newbie
 
Member#: 24212
Join Date: Sep 2002
Location: Rockford, IL
Vehicle:
2002 WRX
Silver

Default me too

This is definitely on my list of wanted mods as well.

I haven't actually taken a look at it yet, but I assume (based on the other switches I've looked at) that there's a connector on the back that you can unplug, and that there will be two wires on it that connect when the button is pressed. And it's likely that permanently shorting these together will automatically activate the cruise control. Though this is a momentary switch, and the computer is expecting to be pressed for a short time and then let go of, so it's possible you'd need something a little fancier (eg. a microcontroller or the right combination of transistors).

The only reason I haven't worked on this sooner is that I'm trying to figure out why in god's name they put it there in the first place, eg. is there a good reason it should be left as is? There are other cars with this kind of switch, so presumably the engineers weren't loony. I'm guessing it has something to do with safety, but it's not like the car will instantly jump away from you if you accidently press the steering wheel controls, and you won't have any chance to fix the situation. Or perhaps there's some particularly odd set of circumstances, which, if that switch wasn't there, would likely cause damage/injury? I haven't come up with anything after several weeks of thought though.
interiot is offline   Reply With Quote
Old 11-14-2002, 02:45 AM   #4
John #555
Scooby Newbie
 
Member#: 27651
Join Date: Oct 2002
Location: OC, CA
Vehicle:
2002 WRX

Default Re: me too

Quote:
Originally posted by interiot

...and the computer is expecting to be pressed for a short time and then let go of,...
That is the part I'm concerned with. Let me know what you find. I'm not much of an E-engineer
Thanks!

is there a type of relay that disconnects after short period? That's what I (we) need!
John #555 is offline   Reply With Quote
Old 11-14-2002, 02:50 AM   #5
interiot
Scooby Newbie
 
Member#: 24212
Join Date: Sep 2002
Location: Rockford, IL
Vehicle:
2002 WRX
Silver

Default

I'm no EE either, but I'm pretty sure that it wouldn't hurt to just try the direct short trick. If it weren't so late, I'd go try it now... maybe after work tommorow.
interiot is offline   Reply With Quote
Old 11-14-2002, 03:05 AM   #6
John #555
Scooby Newbie
 
Member#: 27651
Join Date: Oct 2002
Location: OC, CA
Vehicle:
2002 WRX

Default

when testing be sure to start the car with the CC button pressed in, since that's what we're trying to emulate. I'll give it a try as well when i get a chance.
John #555 is offline   Reply With Quote
Old 11-14-2002, 03:43 AM   #7
Kostamojen
Scooby Guru
 
Member#: 2272
Join Date: Sep 2000
Chapter/Region: BAIC
Location: Mars
Vehicle:
2013 Subaru BRZ
Galaxy Blue

Default

Its actually a designed saftey feature. So that you dont accidentily hit the cruise button and end up running into someone cause the car wont slow down when you let off the gas.

Just like how electric moonroofs require two pushes of the button to close.
Kostamojen is offline   Reply With Quote
Old 11-14-2002, 04:07 AM   #8
interiot
Scooby Newbie
 
Member#: 24212
Join Date: Sep 2002
Location: Rockford, IL
Vehicle:
2002 WRX
Silver

Default

Okay, here's some dismantling pictures:









But John's right, you don't need to take it apart to test whether a plain short will work.

When you start the car with the CC button pressed, the CC stops working until you "reboot" the car, as if it detected an error condition with the switch and is ignoring it. So yeah, some sort of microcontroller or transistor configuration would be needed.

If on the remote chance that I get around to doing some microcontroller code for this sometime soon, I'll post it, and possibly send one or two programmed chips to people. It's a fairly simple thing though.

I've thought of at least one alternative, though it'd take a fair bit more microcontroller programming: have a little buzzer sound if you press the CC controls on the steering wheel when the button to the left hasn't been pressed. *shrug* Just an idea.
interiot is offline   Reply With Quote
Old 11-14-2002, 02:28 PM   #9
John #555
Scooby Newbie
 
Member#: 27651
Join Date: Oct 2002
Location: OC, CA
Vehicle:
2002 WRX

Default

Nice work, interiot!!! I agree... it seems it doesnt like if the CC button is pressed when starting the car, which means we can't just short the wires.

How about using a capacitor and relay to delay the short in the switch? (I cant remember exactly how everyting works. this is purely based on what i remember from college way back when ) I need some help here!

Btw, thanks for the pics. I've been looking for good intruction on getting to the buttons.
John #555 is offline   Reply With Quote
Old 11-16-2002, 04:23 PM   #10
John #555
Scooby Newbie
 
Member#: 27651
Join Date: Oct 2002
Location: OC, CA
Vehicle:
2002 WRX

Default

Could someone provide wiring diagram/ pinout of the cruise control button? (one next to fog switch)

Thanks in advance.
John #555 is offline   Reply With Quote
Old 02-01-2003, 03:56 AM   #11
John #555
Scooby Newbie
 
Member#: 27651
Join Date: Oct 2002
Location: OC, CA
Vehicle:
2002 WRX

Default

one more try...

Could anyone provide wiring diagram/pinout of the cruise control button?


mods, please move this to the electrical and lighting forum

Thanks.
John #555 is offline   Reply With Quote
Old 02-01-2003, 03:00 PM   #12
just one blunt
Scooby Newbie
 
Member#: 28244
Join Date: Oct 2002
Vehicle:
2003 WRX
silver

Default

i have no idea why this car has it but i have driven a few others that have this button , as well as a bunch without it.
just one blunt is offline   Reply With Quote
Old 02-01-2003, 04:04 PM   #13
Alan
Scooby Specialist
 
Member#: 3601
Join Date: Jan 2001
Chapter/Region: NWIC
Location: Tigard, Oregon
Vehicle:
2006 WRX Wagon
BRIGHT BLUE!

Default

The right way to do this would be to have a circuit that senses the cruise control "ON" light not active, and after a delay of a second or two, makes a momentary contact to the switch to activate the cruise control system. This could be done with a fairly simple logic circuit (actually a transistor with the base on the cruise light wire might work), a 555 timer, and a small relay.

The interesting problem is making a way to disable the cruise control. You don't want it popping back on when you push the button to turn it off, and it is necessary to have a fail safe way to kill the system. I know the stalk switch, and the brake and clutch are supposed to disengage the cruise system, but the main switch is still a good idea to really disconnect the system.
Alan is offline   Reply With Quote
Old 02-02-2003, 12:27 AM   #14
John #555
Scooby Newbie
 
Member#: 27651
Join Date: Oct 2002
Location: OC, CA
Vehicle:
2002 WRX

Default

could you think of a way to make the cruise control master switch turn on 0.5~1min after the ignition? It sounds simple enough but i'm not much of an EE. how does a capacitor work? that might provide enough delay...

Thanks for your input.
John #555 is offline   Reply With Quote
Reply

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
Cruise Control Button aakrusen Electrical & Lighting 27 02-09-2008 09:34 PM
My cruise control button no longer lights up wrx2k4blue Electrical & Lighting 10 03-14-2007 05:07 PM
Cruise Control Button Illumination Dead? Virusx86 Electrical & Lighting 6 03-27-2006 01:56 AM
Cruise control button not lighting up... AK*WRX*2004 Electrical & Lighting 5 01-17-2006 01:55 AM
('93-'01) Possible to add cruise control? Kyguy Impreza Forum 9 06-25-2003 02:27 PM


All times are GMT -4. The time now is 04:05 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2015, North American Subaru Impreza Owners Club, Inc.