Cruise Control to European Aveo

Hello everyone!

This is my first post, and would like to thank you all in advance for all the contect we have available in this forum, for free, and the awesome attention the Vets give to newbies like me.

Lets get into it:

I have a 2011 Aveo LS 1.4 from Spain (maybe France, but definitely European).

I was looking into the DIY Cruise Control threads, and ordered the proper part via ebay.
The thing is that when i was going to cut the cables to connect the module to them, I found that my car has a different connector that you all have.

I attach some pictures.

Behind the Steering Wheel
Attachment 11329

Connector Above Accel Pedal
Attachment 11328

Connector Above OBD2
Attachment 11327

I hope you can help install the CC into my car!

It should be the brown and grey wires on the connector above the accelerator.

Hello PoisonIvy, and thanks for helping me!

So you mean that i should not tap into the connector just behind the knee panel but into the connector above the accelerator pedal.

If I understood correctly, then looking at the image i posted above (2nd), you can see there are 2 grey wires. Which one is the correct one?

Imagine the next diagram is the connector:
...1234
A XXXX
B X....X

I should tap into B4 and B1?
Or B4 and A1?

Thanks again!

No problem Ezanchi. A1 and B4 I believe.

Take a look at Shocker's video...
http://www.aveoforum.com/forum/f94/i...staller-14942/

Quote:

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Originally Posted by PoisonIvy

No problem Ezanchi. A1 and B4 I believe.

Take a look at Shocker's video...
http://www.aveoforum.com/forum/f94/i...staller-14942/

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Yeah I saw that video even before geting into this forum, but unfortunately discovered later that my car had a different connector than Shocker's.

So in Shocker's video you can see that the connector he has right behind the knee panel is the one I have above my accelerator pedal.

In my opinion that should still be fine. Just wire it up roughly at first and take the car for a drive.

Quote:

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Originally Posted by PoisonIvy

In my opinion that should still be fine. Just wire it up roughly at first and take the car for a drive.

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Wouldnt anything terrible happen (like my car not wanting to brake or accelerating to 8000+ rpm) happen if I just trial-and-error it?

Quote:

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Originally Posted by ezanchi

Wouldnt anything terrible happen (like my car not wanting to brake or accelerating to 8000+ rpm) happen if I just trial-and-error it?

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I've installed enough remote starts, power locks, stereos, etc to say confidently that nothing bad is going to happen in this case. Worst case is it's just not going to work.

Quote:

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Originally Posted by PoisonIvy

I've installed enough remote starts, power locks, stereos, etc to say confidently that nothing bad is going to happen in this case. Worst case is it's just not going to work.

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Okay I will try it and report back with any results :)

Hello again guys,

I just tried as PoisonIvy told me to do, but nothing happened.

I mean, thats not necesary a bad thing, as the Airbag didn't explode (i read somewhere that there was some risk of it happening), but neither the CC did work...

I tried both (Grey to 1st pin of the CC and Brown to 4th pin of CC) and (Brown to 1st pin of the CC and Grey to 4th pin of CC) and nothing worked. The car didnt change at all: if i stoped pressing the accelerator it would slowly decrease its speed, just like normal.

What I did was:
1-Get to 40 kmh
2-Press de middle button on the CC to Turn it on
3-Press the SET button on the CC

Nothing happened after that...

What do you thing may be happening?

Were you definitely above 39km/hr? In the manual it says it doesn’t engage at speeds below 39.

Quote:

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Originally Posted by PoisonIvy

Were you definitely above 39km/hr? In the manual it says it doesn’t engage at speeds below 39.

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Yes im pretty sure i was above 39, I even tried at 50 at one time.

I dont know what could be happening... Any clues?

Is a ground activated switch? Meaning you ground out the wires (called active low) to signal the computer to turn on cruise control.

Quote:

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Originally Posted by xintersecty

Is a ground activated switch? Meaning you ground out the wires (called active low) to signal the computer to turn on cruise control.

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To be honest I didn't understand what you mean xintersecty.

Could you please maybe rephrase it?

Thanks!

Computers are funny and telling them an on or off depends on the signal. So if you take the green wire and put it to ground instead of the brown wire that is a an active low signal. Do you have a volt meter to measure the voltages on the wires?

Quote:

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Originally Posted by xintersecty

Computers are funny and telling them an on or off depends on the signal. So if you take the green wire and put it to ground instead of the brown wire that is a an active low signal. Do you have a volt meter to measure the voltages on the wires?

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Ah okay I think I now got what you mean.
Yes I do have a volt meter.

What would be the next step?

By the way, why if the switch has 4 pins we only use 2?

2 pins are the signals, the other is ground and dimmer light.
Electrical hacking 101
1) turn on car
2) measure voltage of each wire to ground, record the color and voltage
3) turn on the lights and repeat each step, this should find the lighting circuit.
4) turn off the lights
5) if the wire measures zero to ground then that might be ground
6) if the wire measures a positive voltage to ground that could be the signal.

Do you have a wiring schematic?

Quote:

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Originally Posted by xintersecty

2 pins are the signals, the other is ground and dimmer light.
Electrical hacking 101
1) turn on car
2) measure voltage of each wire to ground, record the color and voltage
3) turn on the lights and repeat each step, this should find the lighting circuit.
4) turn off the lights
5) if the wire measures zero to ground then that might be ground
6) if the wire measures a positive voltage to ground that could be the signal.

Do you have a wiring schematic?

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Unfortunately I don't have a wiring schematic..

Maybe I could find one in the forum.

How do I ground a cable to measure it's voltage?

I'm sorry for asking so much but I'm very new to this:(

I have very little experience with electrical works, that's why I'm struggling a bit to follow you.

Do you have any clue of what I should do next?

Try this and learn how to use the tool and go back to my comment on what to measure.
https://www.youtube.com/watch?v=k2LgvmWNVwc

Quote:

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Originally Posted by xintersecty

Try this and learn how to use the tool and go back to my comment on what to measure.
https://www.youtube.com/watch?v=k2LgvmWNVwc

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Okay I will watch it and apply it to your last comment.

Thank you very much xintersecty!

I just opened the switch itself and this is how it looks like from the inside.

I believe it may help.
Attachment 11334

As you said before, it seems it's a ground activated switch.
Pin 1 is for V_IN and pin 4 is Ground. No idea about pin 2 and 3. Guess one of them is light but don't know about the other one.

Quote:

---

Originally Posted by xintersecty

2 pins are the signals, the other is ground and dimmer light.
Electrical hacking 101
1) turn on car
2) measure voltage of each wire to ground, record the color and voltage
3) turn on the lights and repeat each step, this should find the lighting circuit.
4) turn off the lights
5) if the wire measures zero to ground then that might be ground
6) if the wire measures a positive voltage to ground that could be the signal.

Do you have a wiring schematic?

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By any chance do you have wiring schematics for my car?

Its 2011 Aveo

Correct me if im wrong: what you are advising me is to first find the ground wire, and then try every positive voltage wire till it works?

Quote:

---

Originally Posted by xintersecty

2 pins are the signals, the other is ground and dimmer light.
Electrical hacking 101
1) turn on car
2) measure voltage of each wire to ground, record the color and voltage
3) turn on the lights and repeat each step, this should find the lighting circuit.
4) turn off the lights
5) if the wire measures zero to ground then that might be ground
6) if the wire measures a positive voltage to ground that could be the signal.

Do you have a wiring schematic?

---

I measured the connector above my accelerator pedal with the car running (I disconnected the connector from the female) and this were my results:

Attachment 11335

As you can see, noone was 0 volts. No ground on that connector?

Any advise?

I read on another post that you could tap directly into the ECU. How would I do that?

Is this the ECU?Attachment 11336

Anyone can help me?

Anyone has any clue?

Is your car drive-by-wire or you have a throttle cable? If it is a cable system, how did you connected the throttle plate actuator? As far as I know, the only european drive-by-wire systems were 1,2 aveos.

My car is a driven-by-wire 1.2 Spanish Aveo. I asked the official mechanics from RAHN which is the brand that does the maintenance to all Chevrolet cars when Chevrolet left Europe a couple years ago, and they told me that "in theory your car's ECU doesn't have the necessary code to detect and run the controller inputs since it wasn't built with it in mind at the fabric. But the only real way to make sure is trial and error because we don't can't know for sure if chevrolet installed that part of the code or not. But don't mess too much with the ECU because you could permanently damage it or the engine, or even make the airbags pop out"...

So I was really disappointed and just stopped trying.

But if you have any clue I'm open to try again!