DIY Cruise Control FAQ (2006-2010 Yaris)

[ibanezjeepguy]

same thing happened to me a couple months ago... the dealer can easily see the older numbers. even toyota parts zone or comparable sites list the new and old numbers I believe.

[yarisbird]

I just completed the installation of cruise control in my 07 hatchback using the oem stalk that I purchased from e-bay and the cruise indicator module/light and wires/pins from CTScott. The cruise control works great.

Only problem is with the indicator light. It turns on for one second when the ignition switch is turned on, but when the cruise control is turn on there is no light. I installed it according to the instructions using splice tap connectors. All of the connections are tight.

CTScott, is there any diagnostic check that you recommend to determine why the light doesn't turn on when the cruise switch is pressed? I have a digital multimeter if that helps. Thanks for all your help.

[CTScott]

Originally Posted by yarisbird

I just completed the installation of cruise control in my 07 hatchback using the oem stalk that I purchased from e-bay and the cruise indicator module/light and wires/pins from CTScott. The cruise control works great.

Only problem is with the indicator light. It turns on for one second when the ignition switch is turned on, but when the cruise control is turn on there is no light. I installed it according to the instructions using splice tap connectors. All of the connections are tight.

CTScott, is there any diagnostic check that you recommend to determine why the light doesn't turn on when the cruise switch is pressed? I have a digital multimeter if that helps. Thanks for all your help.

Just to verify:

The blue wire is connected to the wire that goes to the ECM pin and one of the wires going to the stalk?

The white wire is connected to ignition switched power?

The black wire is connected to ground?

[yarisbird]

Yes.

The blue wire is spliced into the wire that runs from the ecm to the connector under the steering wheel. (pin #1)

The black wire is spliced to the wire that runs from this connector (pin#2) to ground.

The white wire is spliced to the pink wire on the connector under the ignition switch.

[CTScott]

Originally Posted by yarisbird

Yes.

The blue wire is spliced into the wire that runs from the ecm to the connector under the steering wheel. (pin #1)

The black wire is spliced to the wire that runs from this connector (pin#2) to ground.

The white wire is spliced to the pink wire on the connector under the ignition switch.

OK. There is something wrong with the module. PM me you shipping address again, and I'll ship you a replacement.

[bkndacn]

@CTScott : Just wanted to thank you for this DIY and wanted to tell you that my cc worked perfectly all 4000 miles cross country and that I even was able to teach my mom how to use it! (a feat in itself) But Me and My right foot thank you!

[teddy]

I finally finished getting my CC wired up, Canadian 2008 hatchback. Thanks to Scott and everyone else who's contributed.

I will post some pics of the work in the near future. Probably took me a good 4 hours in total because I really had no idea what I was doing, drilling a hole in side of the steering wheel, inserting the pins at the end of the spiral cable, etc.

Probably going to do this on my Mother-in-law's 2007 sedan since she also has the Rostra unit and can get it removed by the dealer for a full refund.

[bairjo]

Well i just installed my cruise control thanks to the DIY info on this thread. I video taped it step by step. Do you think anyone wants to see this? I think it would encourage even the novice mechanic to take this on.

[CTScott]

Originally Posted by bairjo

Well i just installed my cruise control thanks to the DIY info on this thread. I video taped it step by step. Do you think anyone wants to see this? I think it would encourage even the novice mechanic to take this on.

Sure - Post up the video.

[teddy]

You'll need to upload the video to another site like Youtube or Photobucket.

[bairjo]

okay thanks.

[CB900F2]

Hey guys

Has anyone attempted to run a line from D3 to AD4 as described on pages 7 and 8..? AD4 looks fairly accessible from the photo, but I have not had the chance to check myself.

Thanks

[CTScott]

Originally Posted by CB900F2

Hey guys

Has anyone attempted to run a line from D3 to AD4 as described on pages 7 and 8..? AD4 looks fairly accessible from the photo, but I have not had the chance to check myself.

Thanks

AD4 is under the top of the dash. You have to remove the dash top to get to it. Also, the wire from the ECM to AD4 is only there in 2009 sedans and 2009+ Puerto Rico cars.

[CB900F2]

Hi Scott.. Maybe we Canuks are lucky in this case, my 08 Sedan has the wire at the ECM, and I can only assume it connected at AD4

I had to confirm and took apart the ECN connector and snapped a photo..
Like you indicated, it appears that there is no access to the AD4 connector from under the dash, but wonder why Toyota/Rostra would put out these instructions if it was not possible?

Maybe to mess with our Cruise Control crazy minds :p

Originally Posted by CTScott

AD4 is under the top of the dash. You have to remove the dash top to get to it. Also, the wire from the ECM to AD4 is only there in 2009 sedans and 2009+ Puerto Rico cars.

[CTScott]

Originally Posted by CB900F2

Hey guys

Has anyone attempted to run a line from D3 to AD4 as described on pages 7 and 8..? AD4 looks fairly accessible from the photo, but I have not had the chance to check myself.

Thanks

Here is more detail on AD4:


Connector location under dash (the gray connector next to the blue and yellow connectors at the top left section of this picture):
Conn AD4 - Location2.jpg

More detail on the connector's location (this is the male side {which is on the bottom when in place in the car} of the junction connector that is part of the dash harness):
Conn AD4 - Location.jpg

This is how the male pin gets inserted into the connector:
Conn AD4 - Pin Insertion.jpg

Detail of the male pin:
Conn AD4 - Male Pin.jpg

[frankmontreal]

got everything installed bud it do not work!

so ran a cable from pin 40 of the ecm to pin 1 of d3

grounded from pin 2 of d3 to a bolt of the column


installed the stalk with the new wire

the horn works fine.

i suspect the ground but its minus 15 celcius in the driveway so i'll
check that out again tommorrow,

anything i should test for if it's not the ground wire,

im reading about that ad4 thiing do i miss something?

2006 canadian yaris HB automatic

[CB900F2]

Scott.. Would you happen to have a photo the the top half of AD4 connector as I got the connector off the white mount, but since it is a bit tight, I am having a hard time trying to find the latch to unhook the two halfs?..

Thanks Scott!

Originally Posted by CTScott

Here is more detail on AD4:


Connector location under dash (the gray connector next to the blue and yellow connectors at the top left section of this picture):
Attachment 39851

More detail on the connector's location (this is the male side {which is on the bottom when in place in the car} of the junction connector that is part of the dash harness):
Attachment 39848

This is how the male pin gets inserted into the connector:
Attachment 39849

Detail of the male pin:
Attachment 39850

[frankmontreal]

sounds good, i`m gonna try that tomorrow night thanks for the fast answers