DIY Cruise Control FAQ (2006-2010 Yaris)

[kwkshft]

Thanks guys! Just did it this morning after getting the parts from Scott. Works perfect on my 09 hatch! I used the oem lower steering wheel cover from the dealer, here's what the hole looks like:

[MN:-)Yaris]

Hi. I'd like to install cruise control on my new Yaris (new to me) but I'm a bit concerned about messing up the safety systems, i.e. airbags. I went to my local library and looked at a copy of Chilton's service manual for late model Toyotas and they recommend using [OEM?] scanning/diagnostic tools to check for system errors anytime an air bag has been removed and then re-installed on Toyotas with OCS prior to reconnecting the battery. I don't have access to such equipment but I like to be sure everything is still working when I put it back together. What are the risks of not following this step or is Chilton just being hyper sensitive? Doesn't the Yaris have a built in diagnostic function with connection to the instrument indicator light? The Chilton manual, part of a hard cover phone book thick series covering Asian cars, appeared to be written for repair shops. I'm fine with doing the mechanical and electrical work for the CC thanks to all the effort people have put in on this forum but I'm a little spooked at the air bags and the related systems. Any help would be appreciated. Thanks

MN:-)Yaris

[CTScott]

Originally Posted by MN:-)Yaris

Hi. I'd like to install cruise control on my new Yaris (new to me) but I'm a bit concerned about messing up the safety systems, i.e. airbags. I went to my local library and looked at a copy of Chilton's service manual for late model Toyotas and they recommend using [OEM?] scanning/diagnostic tools to check for system errors anytime an air bag has been removed and then re-installed on Toyotas with OCS prior to reconnecting the battery. I don't have access to such equipment but I like to be sure everything is still working when I put it back together. What are the risks of not following this step or is Chilton just being hyper sensitive? Doesn't the Yaris have a built in diagnostic function with connection to the instrument indicator light? The Chilton manual, part of a hard cover phone book thick series covering Asian cars, appeared to be written for repair shops. I'm fine with doing the mechanical and electrical work for the CC thanks to all the effort people have put in on this forum but I'm a little spooked at the air bags and the related systems. Any help would be appreciated. Thanks

MN:-)Yaris

If there are any issues with the SRS, the airbag light will illuminate on the dash, so as long as you don't have the light on when you are done, all is well. If the light was on, there is a method (posted in another thread) to make the SRS ECU flash the airbag light in a pattern to tell you what the error is.

[carlosgil5]

Originally Posted by CTScott

Mexican Yaris get a different ECM than US and Canadian ones, so you would definitely have to test it to see. The place to start is to measure the voltage on the ECM pin 40, with the ignition in the on position. If you see 12 Volts on that pin, then there's a good chance that it will work.

If you shine a flashlight around on your instrument cluster, do you see the two icons for cruise control?

Well, I know it's been a while since I ask for your help, a 4 hour drive remind me I need this mod. Check this out please.

My instrument cluster has the two icons for CC, my ECM part number is 89661-52G71, and I have a reason to believe that mexican and canadian yaris use the same specs because there's a sticker on my door with a canadian logo.

The canadian sticker surprised me, apparently all mexican Yaris got it, a friend of mine has a sedan and the same sticker is there.



What do you think? can this be posible?

If that is correct and I have the canadian version I would like to buy one of your cc kits you sell and give this a shot.

Thanks for the help.

[CTScott]

Originally Posted by carlosgil5

Well, I know it's been a while since I ask for your help, a 4 hour drive remind me I need this mod. Check this out please.

My instrument cluster has the two icons for CC, my ECM part number is 89661-52G71, and I have a reason to believe that mexican and canadian yaris use the same specs because there's a sticker on my door with a canadian logo.

The canadian sticker surprised me, apparently all mexican Yaris got it, a friend of mine has a sedan and the same sticker is there.



What do you think? can this be posible?

If that is correct and I have the canadian version I would like to buy one of your cc kits you sell and give this a shot.

Thanks for the help.

I just ran your VIN through the EPC and your car is actually a Canada spec, not Mexico spec Yaris, so cruise will definitely work for you. I suspect that even for Mexico Spec cars that it will work as well.

[carlosgil5]

Originally Posted by CTScott

I just ran your VIN through the EPC and your car is actually a Canada spec, not Mexico spec Yaris, so cruise will definitely work for you. I suspect that even for Mexico Spec cars that it will work as well.

thanks for the quick reply.

are you still selling the cheap OEM cruise control stalk & connector cable?

I have a US based shipping address in Nogales, Arizona

[CTScott]

Originally Posted by carlosgil5

thanks for the quick reply.

are you still selling the cheap OEM cruise control stalk & connector cable?

I have a US based shipping address in Nogales, Arizona

Yes. I still have the Stalks with CC wire and mounting screws for $40, as well as the pins needed for 06-08. Theoretically your 2010 AT only needs the stalk, since the US and Canadian 09+ Yaris have the wiring in place, but you may want to take a peek at the ECM connector and the spiral cable connector to be sure.

[carlosgil5]

Originally Posted by CTScott

Yes. I still have the Stalks with CC wire and mounting screws for $40, as well as the pins needed for 06-08. Theoretically your 2010 AT only needs the stalk, since the US and Canadian 09+ Yaris have the wiring in place, but you may want to take a peek at the ECM connector and the spiral cable connector to be sure.

Please PM me your info.

Can't wait to do this, If the wiring is already in place a friend of mine with a 08' sedan can use the extra wire.

Thanks for the help.

[carlosgil5]

Originally Posted by ZeeGrandChamp

Did the CC upgrade on my 2010 USDM 3-Door... as easily as changing a shift knob. CTScott's kit is great and the updated part number for the cover is:

45184-52130-B0 and the list price is about $32.00

thanks for the info, but I think am gonna' drill. I'll be very careful.

[carlosgil5]

Originally Posted by carlosgil5

Please PM me your info.

Can't wait to do this, If the wiring is already in place a friend of mine with a 08' sedan can use the extra wire.

Thanks for the help.

Well, am in trouble, I picked up the package, thanks for the kit, everything came in time and as expected.

Drilled the cover, installed the stalk with the wire, did a road test and it's not working.

I definitely need help here guys.

What do you think, the 06-08 method?

Looks like this is going to be a learning experience for the people with Yaris bought in Mexico.

[CTScott]

Originally Posted by carlosgil5

Well, am in trouble, I picked up the package, thanks for the kit, everything came in time and as expected.

Drilled the cover, installed the stalk with the wire, did a road test and it's not working.

I definitely need help here guys.

What do you think, the 06-08 method?

Looks like this is going to be a learning experience for the people with Yaris bought in Mexico.

Can you take a measurement on the wire that goes to the ECM pin. With the ignition on and none of the stalk switches pressed, it should read +12V.

[carlosgil5]

Originally Posted by CTScott

Can you take a measurement on the wire that goes to the ECM pin. With the ignition on and none of the stalk switches pressed, it should read +12V.

I could not get any measurement I have one of those little harness plugs in the hole where pin 40 would be.

This are the connections under my steering wheel.
there's no blue and no brown wire.



This is my cluster showing the cc icons.


So I have to run the wire from which hole in the connector?

What else do I have to do, I already drilled the cover, plugged the stalk wire and bolted the OEM stalk.

I was really hoping my '10 AT had all the wires in place. Not at all.

[CTScott]

Originally Posted by carlosgil5

I could not get any measurement I have one of those little harness plugs in the hole where pin 40 would be.

This are the connections under my steering wheel.
there's no blue and no brown wire.



This is my cluster showing the cc icons.


So I have to run the wire from which hole in the connector?

What else do I have to do, I already drilled the cover, plugged the stalk wire and bolted the OEM stalk.

I was really hoping my '10 AT had all the wires in place. Not at all.

So, you definitely need to add the connector D3 pins. The other question is if the ECM connector A21, pin 40 is present? On Puerto Rico spec cars, it is, but the D3 pins are not.

[carlosgil5]

Originally Posted by CTScott

So, you definitely need to add the connector D3 pins. The other question is if the ECM connector A21, pin 40 is present? On Puerto Rico spec cars, it is, but the D3 pins are not.

Am getting a little nervous about this, I unplugged the ECM connector A21, looked at the pin 40, small pin by the way, and looks like there´s nothing there, just the empty space, It was late and dark, of course I´ll double check at lunch time.

Now my concern is with my ECM, in theory I have the one used in the canadian Yaris (89661-52G71), but, what if there´s nothing on my ECM to receive the wire in the ECM connector A21 pin 40? would that mean I have the cruiseless euro type of ECM (nooo please)?

Oh boy am in panic.

[CTScott]

Originally Posted by carlosgil5

Am getting a little nervous about this, I unplugged the ECM connector A21, looked at the pin 40, small pin by the way, and looks like there´s nothing there, just the empty space, It was late and dark, of course I´ll double check at lunch time.

Now my concern is with my ECM, in theory I have the one used in the canadian Yaris (89661-52G71), but, what if there´s nothing on my ECM to receive the wire in the ECM connector A21 pin 40? would that mean I have the cruiseless euro type of ECM (nooo please)?

Oh boy am in panic.

89661-52G71 is a US/Canada spec ECM, so I am sure that you are OK. I should have made you check the ECM and connector D3 pins before I sent you the stalk.

[carlosgil5]

Originally Posted by CTScott

89661-52G71 is a US/Canada spec ECM, so I am sure that you are OK. I should have made you check the ECM and connector D3 pins before I sent you the stalk.

Hey CT you have been of great help, definitely my bad, since I have a ´10 I tought I had the wires in place and I was lazy to unbolt stuff and take a look.

Ok, so my next step would be Vince87´s method right?

I already downloaded the PDF and read the entire thread.

wire from AD3 to ECM connector A21 pin 40 right?

[CTScott]

Originally Posted by carlosgil5

Hey CT you have been of great help, definitely my bad, since I have a ´10 I tought I had the wires in place and I was lazy to unbolt stuff and take a look.

Ok, so my next step would be Vince87´s method right?

I already downloaded the PDF and read the entire thread.

wire from AD3 to ECM connector A21 pin 40 right?

Correct - Wire from A21-40 to D3 and D3 to ground. I can mail you the pins (ECM pin - $5, D3 Pins - $5). USPS to Mexico is the same as to Canada, so there would be no extra charge for me to ship them to you directly (rather than to your US address).

[carlosgil5]

Originally Posted by CTScott

Correct - Wire from A21-40 to D3 and D3 to ground. I can mail you the pins (ECM pin - $5, D3 Pins - $5). USPS to Mexico is the same as to Canada, so there would be no extra charge for me to ship them to you directly (rather than to your US address).

Wow, sounds great.

Do you know if USPS offers a faster shipping speed?, I am willing to pay a little more for a faster shipping and get this done.