DIY - 2009 Cruise Control for $10, without pulling the steering wheel and airbag - Toyota Yaris Forums

TylerJ · 07-25-2009, 04:02 PM

is there one spot in the firewall where i can thread through the ECM wire from the switches and the two wires from the cluth cruise switch ? being that they are on opposite sides

CTScott · 07-25-2009, 04:54 PM

Quote:

Originally Posted by TylerJ

is there one spot in the firewall where i can thread through the ECM wire from the switches and the two wires from the cluth cruise switch ? being that they are on opposite sides

There's a grommet on either side that you run the wires through. The one on the ECM side is a little easier to get to on the under hood side. The other one comes out behind the battery.

TylerJ · 07-25-2009, 06:43 PM

Quote:

Originally Posted by CTScott

There's a grommet on either side that you run the wires through. The one on the ECM side is a little easier to get to on the under hood side. The other one comes out behind the battery.

What is the best way to access that grommet ? remove the glove box or is there a better way ?

PatrickJohnson · 07-25-2009, 07:10 PM

no, it isnt' anywhere behind the glove box. in your passenger side floor, find the top edge of the carpet and pull it back (it' only attached by a couple pieces of velcro) and it exposes the grommet pretty clearly.

TylerJ · 07-25-2009, 08:52 PM

ok so I pulled back the carpet and the grommet I see is attached to some hose that leads to the climate controls ... is this the one ?

CTScott · 07-25-2009, 09:54 PM

Quote:

Originally Posted by TylerJ

ok so I pulled back the carpet and the grommet I see is attached to some hose that leads to the climate controls ... is this the one ?

No, that one is for the AC condensate drain. I am not sure which on Patrick is referring to, but the one I was thinking of is the one which comes out just above the top left corner of the ECM (as you are facing it from under the hood). It comes into the cabin fairly high up behind the dash.

tforkner · 07-26-2009, 02:28 AM

I used the a/c hose grommet for my wires. It's easy to remove and replace from the inside. I wrapped my three thin wires (5 speed here) with several turns of black electrical tape to protect them from the sheet metal and then replaced the hose and grommet around them. I just carefully removed the grommet and hose and ran the wires through the hole. I then replaced the hose and grommet in the hole. The grommet is nice and resilient and seems to fit around the wires well. I mounted the switches and resistors in an old cassette box and tucked it into the cubby hole beside the driver's right knee. See my previous post on how I mounted a clutch switch. The switch action is very light so the clutch pedal motion isn't going to break it loose, but I'm sure a good grab with pliers would be all it would take to remove the switch. I figure it will take me all of ten minutes to remove the whole system if I have to go for warranty work. The only downsides I see to this are maybe longer wires and perhaps having to crawl under the car. Now that I've done this mod, I think I could complete another installation in less than an hour. This has got to be the coolest modification (at 48 years old and about 18 cars under my belt) I've ever done-

Many thanks to those here who allowed me to do this!

TylerJ · 07-26-2009, 10:46 AM

Quote:

Originally Posted by CTScott

No, that one is for the AC condensate drain. I am not sure which on Patrick is referring to, but the one I was thinking of is the one which comes out just above the top left corner of the ECM (as you are facing it from under the hood). It comes into the cabin fairly high up behind the dash.

So if I crawl up under the passenger side dash will I be able to see it or should i remove it from the engine bay and let the light shine through to find it ?

TylerJ · 07-26-2009, 11:52 AM

Quote:

Originally Posted by CTScott

No, that one is for the AC condensate drain. I am not sure which on Patrick is referring to, but the one I was thinking of is the one which comes out just above the top left corner of the ECM (as you are facing it from under the hood). It comes into the cabin fairly high up behind the dash.

Ok now that I have the wires run into the engine bay what is the best way to make secure attachments to the ECM and the fuse box for the cruise switch, using certain connectors or splicing ?

07-26-2009, 02:28 AM	#7
tforkner Drives: 08 liftback 5 speed Join Date: Jul 2009 Location: georgia Posts: 20	I used the a/c hose grommet for my wires. It's easy to remove and replace from the inside. I wrapped my three thin wires (5 speed here) with several turns of black electrical tape to protect them from the sheet metal and then replaced the hose and grommet around them. I just carefully removed the grommet and hose and ran the wires through the hole. I then replaced the hose and grommet in the hole. The grommet is nice and resilient and seems to fit around the wires well. I mounted the switches and resistors in an old cassette box and tucked it into the cubby hole beside the driver's right knee. See my previous post on how I mounted a clutch switch. The switch action is very light so the clutch pedal motion isn't going to break it loose, but I'm sure a good grab with pliers would be all it would take to remove the switch. I figure it will take me all of ten minutes to remove the whole system if I have to go for warranty work. The only downsides I see to this are maybe longer wires and perhaps having to crawl under the car. Now that I've done this mod, I think I could complete another installation in less than an hour. This has got to be the coolest modification (at 48 years old and about 18 cars under my belt) I've ever done- Many thanks to those here who allowed me to do this! Last edited by tforkner; 07-26-2009 at 09:34 AM.

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07-25-2009, 04:02 PM	#1
TylerJ Drives: Blazing Blue 2007 3dr HB 5MT Join Date: Jul 2009 Location: Ann Arbor, MI Posts: 14	is there one spot in the firewall where i can thread through the ECM wire from the switches and the two wires from the cluth cruise switch ? being that they are on opposite sides

07-25-2009, 07:10 PM	#4
PatrickJohnson Drives: 2008 Yaris LB Join Date: Dec 2008 Location: Murfreesboro, TN Posts: 198	no, it isnt' anywhere behind the glove box. in your passenger side floor, find the top edge of the carpet and pull it back (it' only attached by a couple pieces of velcro) and it exposes the grommet pretty clearly.

07-25-2009, 08:52 PM	#5
TylerJ Drives: Blazing Blue 2007 3dr HB 5MT Join Date: Jul 2009 Location: Ann Arbor, MI Posts: 14	ok so I pulled back the carpet and the grommet I see is attached to some hose that leads to the climate controls ... is this the one ?