DIY Cruise Control FAQ (2006-2010 Yaris)

[jasonk1123]

https://www.dropbox.com/s/l83udd2y3fhjko7/D3.jpg

Sorry couldnt get the photo sharedXD noob at work

[CTScott]

Originally Posted by jasonk1123

https://www.dropbox.com/s/l83udd2y3fhjko7/D3.jpg

Sorry couldnt get the photo sharedXD noob at work

OK. By the wires present it looks like you have steering wheel audio controls (or at least you car is wired for it).

So, the next test is measuring the voltage on the ECM pin 40. You can pull the rubber plug and stick a piece of wire in there to take the measurement.

[jasonk1123]

Hi ÇTscott, can i pull the ECM plug off with the battery connected? Btw on the plug side there is no wire coming from pin 40 of the plug

[CTScott]

Originally Posted by jasonk1123

Hi ÇTscott, can i pull the ECM plug off with the battery connected? Btw on the plug side there is no wire coming from pin 40 of the plug

Yes - You can pull it with the battery connected.

You will need to pull out the little rubber hole plug (easiest way is to stick a sewing pin into the hole and push the plug out the back side). Once the plug is out you can plug the connector back in and stick a small piece of wire into the hole to make contact with the ECM pin. Then, turn the key to the ON position and measure the voltage on that pin.

[jasonk1123]

OK awesome, will try that and let you know?

BTW I did read the DIY section when i first started, wasn't sure how to check if there were preparations for the cruise control already ion place, but now i know, thanks a ton, will let you know what the result is

[jasonk1123]

Hi CTscott

I have tried to place a led light in there, i earthed the one side and shoved the + side in the whole, it did not come on...

must i try it with the + side on battery and shove the - side in there? The reason i am using the LED because i dont have a meter hereXD

[jasonk1123]

Hi CTscott

I have tried to place a led light in there, i earthed the one side and shoved the + side in the whole, it did not come on...

must i try it with the + side on battery and shove the - side in there? The reason i am using the LED because i dont have a meter hereXD

[jasonk1123]

oops double post:)

I have tried the + and - and cant get the light to shine:(

Oh well at least I tried... Now it is time for me to find a suitable cc for my Yaris. If anyone has any sudgestions let me know, Thanks a mil

[CTScott]

If you can get your hands on a voltmeter try that instead. The +12V on that pin is not intended to source current, but rather is just a high impedance ADC looking for the various resistances fed by pressing the different switches on the stalk.

[jasonk1123]

ah so there is hope.

Will test it today and let everyone know

[jasonk1123]

Ok so I got 0.3 DCV, it was steady like not dropping or anything. what should i be looking for?

[Gitaniio]

Hello CTScott, I know you said that only cars with US/Canada specs support CC, but I need to know if my 2014 yaris with mexican specs supports it since the car appears to be fully wired (the d3 has the black wire for the horn, the blue and brown for the CC and aparently 3 more wires for audio controls). It also appears to have the CC indicator on the instrument panel along with the vsc/trac which is not an option for sedans in mexico. Is there any option for me in case OEM CC can't be installed? I take highways a lot and it's not fun for my leg.

[CTScott]

Originally Posted by Gitaniio

Hello CTScott, I know you said that only cars with US/Canada specs support CC, but I need to know if my 2014 yaris with mexican specs supports it since the car appears to be fully wired (the d3 has the black wire for the horn, the blue and brown for the CC and aparently 3 more wires for audio controls). It also appears to have the CC indicator on the instrument panel along with the vsc/trac which is not an option for sedans in mexico. Is there any option for me in case OEM CC can't be installed? I take highways a lot and it's not fun for my leg.

Yes. Mexico spec cars are the same as US spec ones, so it will work for you.

[Gitaniio]

Originally Posted by CTScott

Yes. Mexico spec cars are the same as US spec ones, so it will work for you.

I tried to test the CC with a two switch set from one of your tutorials but nothing happened, then I tried to bridge the blue and brown cables and nothing. I did the tests because I don't want to buy the stalk and the wire without knowing for sure if the car's CC is enabled. Am I doing something wrong? Is there any other way to find out?

Thanks for answering!

[CTScott]

Check for the presence of the blue wire on the ECM connector. The ones from the steering column may only run to the junction block under the dash top.

[Gitaniio]

Originally Posted by CTScott

Check for the presence of the blue wire on the ECM connector. The ones from the steering column may only run to the junction block under the dash top.

There's nothing in the 40 pin, should I test it with a voltimeter? If so, please tell me the right steps to do it because I don't want to set the car on fire

[CTScott]

If you pull the rubber plug you can stick a small piece of wire in the hole to take the voltage measurement. Turn the key to the on position and take the measurement with the red on that wire and the black lead on a ground.

[Gitaniio]

Originally Posted by CTScott

If you pull the rubber plug you can stick a small piece of wire in the hole to take the voltage measurement. Turn the key to the on position and take the measurement with the red on that wire and the black lead on a ground.

Unfortunately there was no voltage there. Is there any other way to install a CC in my yaris? Thank you for your time.