Can we do this? (aka The DIY Cruise Control Thread)

[CTScott]

Originally Posted by mrbond

I'm definitely missing something. Where do the additional 2 wires from D3 go? I mean, with the switch method for models other than the 09, it seems like you don't need to use D3. But since I'm going to be using the stalk, I need to use D3.

The connector above is D3. If you use the switch method for 08, then you go straight from the ECM to the switches.

For the stalk method the wire from pin 40 of the ECM goes where the blue wire is above in D3. Where the brown wire is in D3, you will run a wire from that position to a ground point.

[nickhjort]

Here's those pics CTScott...hope they are good enough. If you need more I can take more tomorrow. I'm heading to work right now...









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Sorry there's so many on this post, but I figured the more the better :) Let me know what you think. Like I said before, I feel pretty confident in my basic electrical abilities. I can solder to PCB's and all that fun stuff. I would rather not switch the switches around (since I just got them all done and looking good), but however I can get that light to light up I'll do it. Oh and also I have a 12V LED in there right now, only cause I had a bunch laying around. Let me know if I need a different voltage LED too. Thanks again.

And I hope all this stuff is helping other people want to do this mod. I've spent less than $10 so far. $500 or $10...no brainer

[33OH]

Originally Posted by nickhjort

And I hope all this stuff is helping other people want to do this mod. I've spent less than $10 so far. $500 or $10...no brainer

Definitely watching. I hate doing electrical work, so waiting on another dummy like me to attempt it. Or a nice DIY wrote up.

Great work so far guys.

[nickhjort]

Well I'm your dummy ryank!
And Thanks for scratching around CTScott. My car is all put back together for now, so I won't get a chance to work on it again till this weekend. In the meantime, lemme know what you think about the LED. Thanks a million!

[mrbond]

And I wouldn't need to bother with the clutch control switch then?

[CTScott]

Originally Posted by mrbond

And I wouldn't need to bother with the clutch control switch then?

You would still need the cruise clutch switch (if your car is MT). It connects from the clutch switch (which you would have to add) on the pedal bracket to the under hood fuse box. It is separate from the stalk and its wiring.

[CTScott]

Excellent pics! Let me scratch around them a bit and see what I can come up with.

[CTScott]

Originally Posted by CTScott

Excellent pics! Let me scratch around them a bit and see what I can come up with.

OK. To figure this out, we'll need the meter PCB to be hooked up to the car. What you'll have to do is turn the ignition on, and initially take 16 voltage measurements, then press your cruise on button and take the 16 again. If one of the 16 changes after turning cruise on, we'll know that that pin would drive the cruise LED if the car had one.

IC500 and IC501 are the "8 bit shift registers". Each of them can drive 8 LEDs. We need to look at pins 3 through 6 and 11 through 14 on each.

Pin 1 is the pin under the "1" after the IC50x label. In your picture which has the text upside down, Pin 3 is right above the middle of the 00 in IC500 and right above the 1 in IC501. In that view, 4, 5 and 6 are to the right of 3.

Pin 9 is at the top right in that view (next to the upside down 9). Pin 11 is two pins to the left of 9. 12, 13, and 14 are to the left on 11.

So, connect it up, turn the ignition switch on, and measure from a ground point to each of those 16 pins. They will measure ~0.5 VDC, or ~5.0 VDC.

Then, press your cruise on button and measure all 16 again.

[MGargano]

If I'm using the OEM stalk method on an '09, is it just plug & play? I know I need the cruise control clutch switch but I'm wondering if there are any other wires/connections I need to make to get it working.

[CTScott]

Originally Posted by MGargano

If I'm using the OEM stalk method on an '09, is it just plug & play? I know I need the cruise control clutch switch but I'm wondering if there are any other wires/connections I need to make to get it working.

No - That's it. For an 09 AT, it's just mount and plug in the stalk and you're done. For 09 MT, same plus mount and plug in the clutch switch. No running of any additional wires on either.

[MGargano]

Originally Posted by CTScott

No - That's it. For an 09 AT, it's just mount and plug in the stalk and you're done. For 09 MT, same plus mount and plug in the clutch switch. No running of any additional wires on either.

Is there a DIY for mounting/wiring the clutch switch? I haven't gotten it yet so I'm not even sure what it looks like/where to put it.

[CTScott]

Originally Posted by MGargano

Is there a DIY for mounting/wiring the clutch switch? I haven't gotten it yet so I'm not even sure what it looks like/where to put it.

Take a look at this DIY on installing cruise on a Matrix. It shows the Clutch Switch installation:

http://matrixowners.com/index.php?ac...r&f=23&t=71247

[MGargano]

Originally Posted by CTScott

Take a look at this DIY on installing cruise on a Matrix. It shows the Clutch Switch installation:

http://matrixowners.com/index.php?ac...r&f=23&t=71247

Looks like the plug for this switch should already be hanging somewhere under the dash, if I'm reading this correctly. Seems pretty straight forward.

[CTScott]

Originally Posted by PK198105

Ok i did a bit of scratching on my own, btw great pics of the meter, i think i killed two birds with one stone. First it is my belief that the 07 meters are not even programmed for cruise because there is not even a connector for the LED and no trace for it either. you do not have a tach am i correct Nick? therefore the icon should be under the speedo needle to the right of it and from the pics i see none. So Scott i don't think that checking the shift registers will do anything if the controller doesn't have the program that will allow it to send the signal to the icon.

Second some of you may remember this i was trying to figure out a way to switch from metric to mph and vice versa, well thanks to your pics Nick i came to the conclusion that this also is not possible to "hack", I read the Repair manual Meter section and the only way to switch this is through the Intelligent tester.

here is the list of things that can be Customized through the intelligent tester:

Display (Item) Default Contents Setting
KEY REMIND SOUND SLOW Changes key reminder buzzer
intervals FAST / NORMAL / SLOW
LIGHT REMIND ON Turns light reminder buzzer ON
and OFF ON / OFF
SEAT BELT WARN D/P ON Turns seat belt warning buzzer
ON and OFF D/P ON / D ON / P ON / D/P OFF

UNITS BY REGION Different for every region Changes drive monitor display
units
KM/L JP / KM/L / ML/G US / ML/
G UK / KM/G

I realize that the LED is not there and that there is a good chance that the microcontroller is not programmed to support the cruise LED, but two days ago I would have said the same for the ECM, when he found that the wire didn't exist in pin 40, and the cruise clutch switch wiring didn't exist.

[CTScott]

Originally Posted by PK198105

so what do we do?

I say check the shift register output for the heck of it, as I don't believe that all 16 outputs are in use.

[schleppy]

Just as a side note, I think it would be worthwhile if a mod re-named this thread to something like "DIY Cruise Control how-to, 2007-2009".

The current thread title won't be helpful in future searches :D

[nickhjort]

Alright you guys, I'm home and I used my Cruise Control to and from work...it was GREAT! Definatly worth the trouble. But of course right now it's kind of a pain to always be wondering "Did I turn it on yet? Is it on or off right now? I sure wished this LED worked." :)

I just got done reading all these replies. I will definatly take the meter apart again and check all those pins "just for the heck of it," cause it will be nice if that works out. But if not we'll have to figure something else out.

PK198105, no I don't have the tach in the combination meter, but I did install one aftermarket...I think that doesn't effect this process. And I do also see many empty solder points on the PCB...LED's, IC's and some other stuff.

Also, I didn't see the clutch switch wire hanging down under the dash, but I will search again just to make sure.

Anyway, I probably won't have any time to do this until saturday, so hang in there guys and I will keep checking in here everyday to see what's shakin'. I will post more pics on saturday with my results from the voltage tests. Thanks guys!

[CTScott]

Originally Posted by nickhjort

Alright you guys, I'm home and I used my Cruise Control to and from work...it was GREAT! Definatly worth the trouble. But of course right now it's kind of a pain to always be wondering "Did I turn it on yet? Is it on or off right now? I sure wished this LED worked." :)

I just got done reading all these replies. I will definatly take the meter apart again and check all those pins "just for the heck of it," cause it will be nice if that works out. But if not we'll have to figure something else out.

PK198105, no I don't have the tach in the combination meter, but I did install one aftermarket...I think that doesn't effect this process. And I do also see many empty solder points on the PCB...LED's, IC's and some other stuff.

Also, I didn't see the clutch switch wire hanging down under the dash, but I will search again just to make sure.

Anyway, I probably won't have any time to do this until saturday, so hang in there guys and I will keep checking in here everyday to see what's shakin'. I will post more pics on saturday with my results from the voltage tests. Thanks guys!

Sounds good. I have a circuit design in my back pocket for making the LED work, without changing to a dual pole switch, in case we need it...