DIY Cruise Control on 07-08 Yaris (step by step) - Page 13 - Toyota Yaris Forums

crazyandroid · 05-10-2010, 08:46 PM

Quote:

Originally Posted by CTScott

There is no polarity to the clutch switch, so you don't have to worry about which terminal on the switch goes to which of the two wires in the fuse box.

You simply run the two wires from the clutch switch to the two wires in the under-hood fuse box, and make your connections.

Thank you very much! I can't wait for my switches to come in!

PhillyG · 05-11-2010, 01:08 PM

hi guys.. i am very interested in doing this to my yaris. does this work for 2009 as well? i didnt see anyone mention this beyond 07-08.

CTScott · 05-11-2010, 01:23 PM

Quote:

Originally Posted by PhillyG

hi guys.. i am very interested in doing this to my yaris. does this work for 2009 as well? i didnt see anyone mention this beyond 07-08.

Yes. 09 Liftbacks (and some Sedans) have the wiring in place from the ECM to the steering column, making the job even easier. Take a look at the following thread regarding the differences:

http://www.yarisworld.com/forums/sho...ght=diy+cruise

PhillyG · 05-11-2010, 01:48 PM

Thanks!! i am making a list now.. hope to get to do this in a week or two!

crazyandroid · 05-14-2010, 12:57 AM

Ok, quick question. When installing the clutch switch, I see that the two wires go to the blue and white wires on that connection in the fuse box . . . could I just splice into those wires instead of trying to wedge some sort of connector into the same hole? I ask b/c that's what I tried and I'm not sure where my failure lies. I will take pictures in the morning of everything that I did and hopefully someone can help me. I'm really feeling like I should not have attempted this mod . . . I don't even know how to check the current to make sure that things are connected adequately.

CTScott · 05-14-2010, 08:33 AM

Quote:

Originally Posted by crazyandroid

Ok, quick question. When installing the clutch switch, I see that the two wires go to the blue and white wires on that connection in the fuse box . . . could I just splice into those wires instead of trying to wedge some sort of connector into the same hole? I ask b/c that's what I tried and I'm not sure where my failure lies. I will take pictures in the morning of everything that I did and hopefully someone can help me. I'm really feeling like I should not have attempted this mod . . . I don't even know how to check the current to make sure that things are connected adequately.

Definitely splice - Don't wedge. The wedging can be done for a quick test, but you really want a more positive mating for the long run.

Yarisduder · 05-19-2010, 01:00 PM

Hi, I'm trying to do this on my Canadian 2007 Yaris sedan, and there's already a blue wire in the pin40 spot at the ECM. The wires on the steering column aren't there. Does this mean I can't have CC, or do I tap into that blue wire?

CTScott · 05-19-2010, 02:41 PM

Quote:

Originally Posted by Yarisduder

Hi, I'm trying to do this on my Canadian 2007 Yaris sedan, and there's already a blue wire in the pin40 spot at the ECM. The wires on the steering column aren't there. Does this mean I can't have CC, or do I tap into that blue wire?

If you are 100% sure that you are looking at the correct pin as pin 40, then indeed your wire is run from there to the junction connector under the dash. (But not from the junction to the steering column).

That junction is just under the top of the dashboard, so you can't get to it without removing the dash, so the easiest thing would be to tap the blue wire by where it enters the ECM.

Yarisduder · 05-20-2010, 08:26 AM

It worked!! I am amazed and awed! The dealer told me they can't put cruise control on my car, and with a few old buttons and resistors, plus some scraps of wire I now have CC! Thank you all so much, you've saved the Yaris and my $25K for a new car that would be comfortable on long journeys.

sk8manmike · 05-23-2010, 10:04 PM

Quote:

Originally Posted by CTScott

Definitely splice - Don't wedge. The wedging can be done for a quick test, but you really want a more positive mating for the long run.

What's the best way to go about splicing for the CC switch? Shave the wire coat and solder on to it?

CTScott · 05-23-2010, 10:33 PM

Quote:

Originally Posted by sk8manmike

What's the best way to go about splicing for the CC switch? Shave the wire coat and solder on to it?

That, or use a properly sized tap splice.

mick.wheelz · 05-24-2010, 12:35 AM

has this actually been tried on an AUDM ECM, I know it does not work on euro models (they seem to run different engines/ECM's alltogether)

mick.wheelz · 05-24-2010, 06:15 AM

Quote:

Originally Posted by mick.wheelz

has this actually been tried on an AUDM ECM, I know it does not work on euro models (they seem to run different engines/ECM's alltogether)

so i checked my ECM, pin 40 is dead.

CTScott · 05-24-2010, 07:54 AM

Quote:

Originally Posted by mick.wheelz

so i checked my ECM, pin 40 is dead.

That makes sense. It seems that the cruise control functionality is only programmed in the USDM Yaris ECM.

mick.wheelz · 05-24-2010, 06:42 PM

Quote:

Originally Posted by CTScott

That makes sense. It seems that the cruise control functionality is only programmed in the USDM Yaris ECM.

that sucks, who has a USDM ECM they want to give me :p

PhillyG · 05-26-2010, 04:38 PM

just a side note... i finally got my parts in today. had them shipped to work because for some odd reason shipping to a business is cheaper. was gonna wait till this weekend and do the install.. notice how i said was? well.... during some down time....... it was really super easy! especially since i read just bout every post on the CC subject. many thanks to everyone! it works.. and looks factory!

sk8manmike · 05-28-2010, 03:04 PM

I've run into a problem: I can't get the black wire cover off of the ECM Connector A21.

I've read CTScotts tutorial:
http://www.yarisworld.com/forums/sho...+connector+a21

But i still can't get it off the top so i can insert the wire. I've feel like i'm pulling every direction in can think of to get it off.

Is there something I'm missing?

CTScott · 05-28-2010, 03:31 PM

Quote:

Originally Posted by sk8manmike

I've run into a problem: I can't get the black wire cover off of the ECM Connector A21.

I've read CTScotts tutorial:
http://www.yarisworld.com/forums/sho...+connector+a21

But i still can't get it off the top so i can insert the wire. I've feel like i'm pulling every direction in can think of to get it off.

Is there something I'm missing?

Once you remove the tiewrap, to remove the black strain relief/cover piece you pry it out, or squeeze it and pull up. It is snapped into the back of the connector.

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05-11-2010, 01:08 PM	#218
PhillyG Drives: 2009 Yaris Join Date: May 2010 Location: georgia Posts: 91	hi guys.. i am very interested in doing this to my yaris. does this work for 2009 as well? i didnt see anyone mention this beyond 07-08.

05-11-2010, 01:48 PM	#220
PhillyG Drives: 2009 Yaris Join Date: May 2010 Location: georgia Posts: 91	Thanks!! i am making a list now.. hope to get to do this in a week or two!

05-14-2010, 12:57 AM	#221
crazyandroid Drives: 2007 Polar White Sedan Join Date: Jan 2009 Location: Waco, TX Posts: 5	Ok, quick question. When installing the clutch switch, I see that the two wires go to the blue and white wires on that connection in the fuse box . . . could I just splice into those wires instead of trying to wedge some sort of connector into the same hole? I ask b/c that's what I tried and I'm not sure where my failure lies. I will take pictures in the morning of everything that I did and hopefully someone can help me. I'm really feeling like I should not have attempted this mod . . . I don't even know how to check the current to make sure that things are connected adequately.

05-19-2010, 01:00 PM	#223
Yarisduder Drives: 2007 4dr Sedan Silver Streak Join Date: May 2010 Location: Montreal, Canada Posts: 73	Hi, I'm trying to do this on my Canadian 2007 Yaris sedan, and there's already a blue wire in the pin40 spot at the ECM. The wires on the steering column aren't there. Does this mean I can't have CC, or do I tap into that blue wire?

05-20-2010, 08:26 AM	#225
Yarisduder Drives: 2007 4dr Sedan Silver Streak Join Date: May 2010 Location: Montreal, Canada Posts: 73	It worked!! I am amazed and awed! The dealer told me they can't put cruise control on my car, and with a few old buttons and resistors, plus some scraps of wire I now have CC! Thank you all so much, you've saved the Yaris and my $25K for a new car that would be comfortable on long journeys.

05-24-2010, 12:35 AM	#228
mick.wheelz Drives: 2006 NCP91R, 1991 ST184R Join Date: May 2009 Location: Brisbane, Australia Posts: 52	has this actually been tried on an AUDM ECM, I know it does not work on euro models (they seem to run different engines/ECM's alltogether)

05-26-2010, 04:38 PM	#232
PhillyG Drives: 2009 Yaris Join Date: May 2010 Location: georgia Posts: 91	just a side note... i finally got my parts in today. had them shipped to work because for some odd reason shipping to a business is cheaper. was gonna wait till this weekend and do the install.. notice how i said was? well.... during some down time....... it was really super easy! especially since i read just bout every post on the CC subject. many thanks to everyone! it works.. and looks factory!

05-28-2010, 03:04 PM	#233
sk8manmike Drives: 2007 Yaris 4d Sedan Join Date: Feb 2010 Location: CO Posts: 28	I've run into a problem: I can't get the black wire cover off of the ECM Connector A21. I've read CTScotts tutorial: http://www.yarisworld.com/forums/sho...+connector+a21 But i still can't get it off the top so i can insert the wire. I've feel like i'm pulling every direction in can think of to get it off. Is there something I'm missing?