DIY Cruise Control on 07-08 Yaris (step by step) - Page 5 - Toyota Yaris Forums

CTScott · 11-28-2009, 03:27 PM

Quote:

Originally Posted by tomlock

Two questions: 1) To make the A21-40 connection, are you just jamming the wire into the receptacle housing and hoping it makes connection to the corresponding pin on the ECM? Or do you know the part number for the proper crimp terminal to snap into the housing? 2) Why are you running the clutch switch to the engine bay fuse box instead of to C20-56 on the ECM?

I'm not at my desk right now to easily do the search, so if you look at the other two cruise control threads, you'll find my posting with the part number for the correct pin for the ECM connector.

For the clutch switch connection, you can go to either point, although the fuse box connection is easier to get to from the clutch switch.

1NZYaris1 · 11-28-2009, 04:56 PM

What Voltage should i see at pin 40

CTScott · 11-28-2009, 05:41 PM

Quote:

Originally Posted by 1NZYaris1

What Voltage should i see at pin 40

If your ECM supports cruise, pin 40 should measure 12 V with the ignition on, and nothing connected to the pin (other than your voltmeter).

hirstmusic · 12-19-2009, 09:27 PM

Hey guys,

My brother helped me install the DIY cruise control today, and it works great! Tonight however, I was testing the cruise again and randomly the P/S (Power Steering) indicator came on. It may have come on after one of the following, but I'm not sure exactly what cause this... I tried to recreate the problem. It might have come on because...

1) I accidentally held "Cancel" instead of "Set" - would that cause a problem?
2) I tried to "Set" the cruise below 25 mph, which I know isn't supported, wondering if that was the problem and the light came on then.

Has anyone experienced something similar with the DIY Cruise Control and the Power Steering indicator? If so, what was the issue you found with it?

Any help would be really appreciated... I just want to make sure nothing is going to blow up or melt down or anything :-) Thanks!

CTScott · 12-19-2009, 09:38 PM

Quote:

Originally Posted by hirstmusic

Hey guys,

My brother helped me install the DIY cruise control today, and it works great! Tonight however, I was testing the cruise again and randomly the P/S (Power Steering) indicator came on. It may have come on after one of the following, but I'm not sure exactly what cause this... I tried to recreate the problem. It might have come on because...

1) I accidentally held "Cancel" instead of "Set" - would that cause a problem?
2) I tried to "Set" the cruise below 25 mph, which I know isn't supported, wondering if that was the problem and the light came on then.

Has anyone experienced something similar with the DIY Cruise Control and the Power Steering indicator? If so, what was the issue you found with it?

Any help would be really appreciated... I just want to make sure nothing is going to blow up or melt down or anything :-) Thanks!

Check the power steering ECU (located directly above the steering column). Depending on how you pulled your wires through, you may have loosened one of the connectors. Neither of the two events you mentioned would cause an issue.

cynsofdm · 01-22-2010, 02:43 AM

Wow this is awesome. It sounds easy enough that I could do it knowing nothing about cars or electronics. I was searching for this though because I am moving to Gainesville, fl from Atlanta, Ga tomorrow. I had to make the trip a couple days ago and my leg and back were killing me. I was hoping to find a way I could pull something off in a couple of hours. You think it's possible? I have a couple of guys familiar with cars and electrical stuff that are coming to help me move tomorrow...

The other thing was I really liked the "test" install Yaris07hb did, because then I could worry about mounting it later. Or possibly something even simpler... installing it in a slip of cardboard... I have tons of cardboard.

Also is the only worry with modifying the remote possibility of voiding a warranty? I bought my '08 HB used, and I don't have a warranty, at least that I know of... it's my first nice new to me car.

CTScott · 01-22-2010, 06:25 AM

Quote:

Originally Posted by cynsofdm

Wow this is awesome. It sounds easy enough that I could do it knowing nothing about cars or electronics. I was searching for this though because I am moving to Gainesville, fl from Atlanta, Ga tomorrow. I had to make the trip a couple days ago and my leg and back were killing me. I was hoping to find a way I could pull something off in a couple of hours. You think it's possible? I have a couple of guys familiar with cars and electrical stuff that are coming to help me move tomorrow...

The other thing was I really liked the "test" install Yaris07hb did, because then I could worry about mounting it later. Or possibly something even simpler... installing it in a slip of cardboard... I have tons of cardboard.

Also is the only worry with modifying the remote possibility of voiding a warranty? I bought my '08 HB used, and I don't have a warranty, at least that I know of... it's my first nice new to me car.

It can be done in a few minutes with the right tools. In the "Can we do this" thread that started this whole idea, I test wired it to two stand-alone switches as a quick test before drilling holes in the dash.

frankencar · 01-27-2010, 05:30 PM

So this may be a silly question but... this works on an AT liftback as well? Just ignore the parts that say "MT only?"

Also, I'm a bit confused on the part where you connect to the ECU. Is there a specific crimp/connector, some other method to plug into the ECU?

CTScott · 01-27-2010, 09:26 PM

Quote:

Originally Posted by frankencar

So this may be a silly question but... this works on an AT liftback as well? Just ignore the parts that say "MT only?"

Also, I'm a bit confused on the part where you connect to the ECU. Is there a specific crimp/connector, some other method to plug into the ECU?

Correct on the AT - Works the same and ignore the clutch switch part.

For the ECM connection (on 06-08 Yaris), you need to actually add a pin to the smaller of the two connectors on the ECM. I highly recommend using the actual Toyota "repair terminal", which is the pin with its waterproof sleeve and a piece of wire pre-connected to it. (Part number: 82998-24250)

upgradedyaris · 01-28-2010, 05:20 PM

Quote:

Originally Posted by CTScott

Correct on the AT - Works the same and ignore the clutch switch part.

For the ECM connection (on 06-08 Yaris), you need to actually add a pin to the smaller of the two connectors on the ECM. I highly recommend using the actual Toyota "repair terminal", which is the pin with its waterproof sleeve and a piece of wire pre-connected to it. (Part number: 82998-24250)

You forgot to add your module for the led. ;) A plus!

Duane

wyolincoln · 01-28-2010, 04:36 PM

I performed this mod several months ago on my wife's 2007, 3 door liftback and decided to use the two switch method. Mounted two black switches on the small removable panel to the right of the column, just below the driver's side glove box. One switch provides on/off and the other switch provides the set function.
This mod has been working great and makes the car very pleasant to drive on all but the shortest trips. Plus one can't help but smile when knowing you have built your own cruise control for less than $10.
Thanks to all who posted schematics, pics, and ideas.

myt · 01-28-2010, 11:24 PM

Ok so of course I HAVE to do this!! I have a M/T, does the brake disengage the Cruise Control or do I have to depress the clutch?

Thanks,
MYT

CTScott · 01-28-2010, 11:52 PM

Quote:

Originally Posted by myt

Ok so of course I HAVE to do this!! I have a M/T, does the brake disengage the Cruise Control or do I have to depress the clutch?

Thanks,
MYT

Either will disengage it provided that you install the clutch switch, rather than bypassing it.

rtom · 01-29-2010, 01:39 PM

Hey CTScott,

Is there a "sticky" or FAQ summarizing which mod procedure one should follow for different years/models of Yaris? I went through the long thread a month or two ago and I remember thinking that it would be better to add my own 2-way switch, but lately it seems everyone is talking about adding the stalk.

I ask this partly on your behalf -- if there's a sticky or FAQ up front in these CC threads, then surely you'll get fewer questions.

CTScott · 01-29-2010, 01:46 PM

Quote:

Originally Posted by rtom

Hey CTScott,

Is there a "sticky" or FAQ summarizing which mod procedure one should follow for different years/models of Yaris? I went through the long thread a month or two ago and I remember thinking that it would be better to add my own 2-way switch, but lately it seems everyone is talking about adding the stalk.

I ask this partly on your behalf -- if there's a sticky or FAQ up front in these CC threads, then surely you'll get fewer questions.

That's a good point. There are sooooo many different threads (with bizillions of posts) all discussing with the same questions popping up, as it is pretty hard to find the answers without wading through. I think I will put one together...

CTScott · 01-29-2010, 02:10 PM

Here's a start:

CC Matrix.jpg

rtom · 01-29-2010, 04:17 PM

Thanks! That's a pretty efficient start.

I'm a good guinea pig because I'm planning to do this (well, when the weather warms up -- I don't have a garage). From my point of view, the next steps are to nail down (1) part numbers and sources, and (2) procedures and tools required. Probably it's not so hard to summarize part numbers & sources, but summarizing procedures might be trickier?

Anyway, thanks, and I'll start reading the threads.

Sodium Duck · 01-30-2010, 03:31 PM

Should we be disconnecting the battery when playing with the ECU?

11-28-2009, 04:56 PM	#2
1NZYaris1 View User's Garage Drives: Yaris Join Date: Oct 2008 Location: New Zealand Posts: 2,565	What Voltage should i see at pin 40 __________________ http://www.microimageonline.com/forums/index.php

12-19-2009, 09:27 PM	#4
hirstmusic I've made a post! Drives: Yaris Sedan Join Date: Jul 2009 Location: SW Florida Posts: 1	DIY Cruise and Power Steering (P/S) Indicator Hey guys, My brother helped me install the DIY cruise control today, and it works great! Tonight however, I was testing the cruise again and randomly the P/S (Power Steering) indicator came on. It may have come on after one of the following, but I'm not sure exactly what cause this... I tried to recreate the problem. It might have come on because... 1) I accidentally held "Cancel" instead of "Set" - would that cause a problem? 2) I tried to "Set" the cruise below 25 mph, which I know isn't supported, wondering if that was the problem and the light came on then. Has anyone experienced something similar with the DIY Cruise Control and the Power Steering indicator? If so, what was the issue you found with it? Any help would be really appreciated... I just want to make sure nothing is going to blow up or melt down or anything :-) Thanks! Last edited by hirstmusic; 12-19-2009 at 09:28 PM. Reason: title

01-28-2010, 04:36 PM	#11
wyolincoln Drives: 2007 Yaris Liftback Join Date: Mar 2009 Location: Minnesota Posts: 4	I performed this mod several months ago on my wife's 2007, 3 door liftback and decided to use the two switch method. Mounted two black switches on the small removable panel to the right of the column, just below the driver's side glove box. One switch provides on/off and the other switch provides the set function. This mod has been working great and makes the car very pleasant to drive on all but the shortest trips. Plus one can't help but smile when knowing you have built your own cruise control for less than $10. Thanks to all who posted schematics, pics, and ideas. __________________ "Mistakes will be made. Others will be blamed." Paul Perves

01-30-2010, 03:31 PM	#18
Sodium Duck ╚══════════RN Drives: 2008 Liftback Join Date: Oct 2008 Location: Western Mass. Posts: 999	Should we be disconnecting the battery when playing with the ECU? __________________ 42.88 Last edited by Sodium Duck; 01-31-2010 at 09:34 AM.

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01-22-2010, 02:43 AM	#6
cynsofdm Drives: gray 2008 yaris Join Date: Jan 2010 Location: gainesville Posts: 2	Wow this is awesome. It sounds easy enough that I could do it knowing nothing about cars or electronics. I was searching for this though because I am moving to Gainesville, fl from Atlanta, Ga tomorrow. I had to make the trip a couple days ago and my leg and back were killing me. I was hoping to find a way I could pull something off in a couple of hours. You think it's possible? I have a couple of guys familiar with cars and electrical stuff that are coming to help me move tomorrow... The other thing was I really liked the "test" install Yaris07hb did, because then I could worry about mounting it later. Or possibly something even simpler... installing it in a slip of cardboard... I have tons of cardboard. Also is the only worry with modifying the remote possibility of voiding a warranty? I bought my '08 HB used, and I don't have a warranty, at least that I know of... it's my first nice new to me car.

01-27-2010, 05:30 PM	#8
frankencar Drives: 2010 Yaris S Join Date: May 2009 Location: sherwood, oregon Posts: 10	So this may be a silly question but... this works on an AT liftback as well? Just ignore the parts that say "MT only?" Also, I'm a bit confused on the part where you connect to the ECU. Is there a specific crimp/connector, some other method to plug into the ECU?

01-28-2010, 11:24 PM	#12
myt Drives: Blazing Blue 07 YAris Join Date: Jun 2007 Location: Laurel, MD Posts: 76	Ok so of course I HAVE to do this!! I have a M/T, does the brake disengage the Cruise Control or do I have to depress the clutch? Thanks, MYT

01-29-2010, 01:39 PM	#14
rtom Drives: 2010 Yaris 3-door liftback MT Join Date: Nov 2009 Location: Denver, CO Posts: 47	Hey CTScott, Is there a "sticky" or FAQ summarizing which mod procedure one should follow for different years/models of Yaris? I went through the long thread a month or two ago and I remember thinking that it would be better to add my own 2-way switch, but lately it seems everyone is talking about adding the stalk. I ask this partly on your behalf -- if there's a sticky or FAQ up front in these CC threads, then surely you'll get fewer questions.

01-29-2010, 02:10 PM	#16
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,450	Here's a start: CC Matrix.jpg

01-29-2010, 04:17 PM	#17
rtom Drives: 2010 Yaris 3-door liftback MT Join Date: Nov 2009 Location: Denver, CO Posts: 47	Thanks! That's a pretty efficient start. I'm a good guinea pig because I'm planning to do this (well, when the weather warms up -- I don't have a garage). From my point of view, the next steps are to nail down (1) part numbers and sources, and (2) procedures and tools required. Probably it's not so hard to summarize part numbers & sources, but summarizing procedures might be trickier? Anyway, thanks, and I'll start reading the threads.