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View Full Version : Canada tach in a US Yaris LB


tiksman
09-29-2006, 11:12 PM
I bought a cluster with tach from Canada and did some testing :wink: .
Install is simple like removing the radio but 2 screws and 2 plugs on the cluster. I installed the cluster and it worked great but no switch for km to miles on the odometer. The miles stay with the cluster. I drove 2 miles and put back in the original and the original had the same miles it had when I removed it. Because of this I am keeping the non tach one. The buzzer also is not so loud on the CDN cluster. I also tryed to swap the circuit board (small) in the cluster which resulted in no display. Well I did try. I liked the look of the CDN cluster much better.

ChinoCharles
09-30-2006, 01:51 AM
OoOoH really? Pictures? Anyone have any ideas on getting it from KPH to MPH? Can you just change the bezel? Did I ask enough questions?

paultyler_82
09-30-2006, 07:58 AM
OoOoH really? Pictures? Anyone have any ideas on getting it from KPH to MPH? Can you just change the bezel? Did I ask enough questions?

You could probably make a new face overlay with MPH as primary... but then your Odometer would still be displaying kilometers, DOH!

ChinoCharles
09-30-2006, 02:52 PM
There has to be a chip in that cluster that is telling it whether or not to read in K or M. Maybe it can be reflashed?

johnnyfive
09-30-2006, 03:21 PM
anyone thing about a cluster from the sedan?

if you can just swapout the canadian cluster, perhaps the sedan would be as easy to change, if the us liftbacks already have tach wires upto the cluster, it me just be that simple... :)

ECHOKnight2000
09-30-2006, 07:42 PM
I believe even the sedan from the hatchback cluster is different, including wiring, just an educated guess. The Canadian hatch speedo does have the miles per hour but obviously its the smaller lettering where's the kilometers is the bigger one, in comparison the U.S. speedos have the miles per hour then the kilometers at the bottom, right? Just food for thought.:thumbsup:

paultyler_82
09-30-2006, 08:05 PM
There has to be a chip in that cluster that is telling it whether or not to read in K or M. Maybe it can be reflashed?

Maybe go over the different chips and crossreference them with data sheets, find what chips do what... but it could be that one of the microcontrollers themselves are programmed with KM in mind, in that case, you'd have to re-write the microcontroller program and reflash the controller, or if it's only a write once unit, you'll have to get a blank one, flash it with your program, and desolder the old one, put yours in place.

paultyler_82
09-30-2006, 08:07 PM
I believe even the sedan from the hatchback cluster is different, including wiring, just an educated guess. The Canadian hatch speedo does have the miles per hour but obviously its the smaller lettering where's the kilometers is the bigger one, in comparison the U.S. speedos have the miles per hour then the kilometers at the bottom, right? Just food for thought.:thumbsup:

Yeah, that's how they're different, and you could probably make your own replacement face if you're resourceful enough, the problem is in the digital odometer, the canadian unit only displays in kilometers.

tiksman
09-30-2006, 11:37 PM
Well I am a Electronic tech for about 20 years now. I am going to try to swap the eeproms on the boards and see what happens. The CDN cluster works great in place of the us just the miles are in Km id does have mph in small numbers under the Km. The trip and odo are in km. Also the clock is in the same display as the odo and gas guage .

ChinoCharles
10-01-2006, 12:35 AM
If you find a way to reflash those eeproms with your original mileage info intact... oh man. You'd be my hero.

johnnyfive
10-01-2006, 04:54 AM
if anyone is interested, take a look at this thread: http://www.yarisworld.com/forums/showthread.php?t=1139&highlight=tach

i posted some pics of my stripedout cluster from my sedan, and some info on it, looks to me with not ever seeing a liftback in person that it should fit, but take a look at it, the measurments, the plugs, and maybe it would fit...

and then if anyone was in southeastern wisconsin i would even be willing to throw it in for a test run, to see if it would work, for if it does i would think that a much simpler solution to the probelm...

not that it matters to me at all, for i have a tach, (and auto trans) but just trying to help out ;)

paultyler_82
10-01-2006, 07:11 AM
If you find a way to reflash those eeproms with your original mileage info intact... oh man. You'd be my hero.

Yeah... problem is Eeprom and microcontroller data for an odometer are probably encrypted in some impossible fashon to protect from tampering with the milage.

tiksman
10-01-2006, 11:05 AM
if anyone is interested, take a look at this thread: http://www.yarisworld.com/forums/showthread.php?t=1139&highlight=tach

i posted some pics of my stripedout cluster from my sedan, and some info on it, looks to me with not ever seeing a liftback in person that it should fit, but take a look at it, the measurments, the plugs, and maybe it would fit...

and then if anyone was in southeastern wisconsin i would even be willing to throw it in for a test run, to see if it would work, for if it does i would think that a much simpler solution to the probelm...

not that it matters to me at all, for i have a tach, (and auto trans) but just trying to help out ;)

By the look of the sedan pics it wont work. The plug on the left side is way too big. The mounting tabs are on the bottom of the cluster on the LB on the sedan they are on the side.

The non us LB cluster works fine in the US LB only prob is miles are in KM.
And the miles follow the cluster not the car. I will work on it a little more today and post some pics.

ChinoCharles
10-01-2006, 12:22 PM
You know, maybe Toyota would help you out with this? I'm sure they wouldn't be too keen on a bunch of their cars running around town with faulty mileage readings... doesn't look good on their part.

tiksman
10-01-2006, 08:02 PM
Ok took the time for some major testing today. The Miles and odo are stores in the eeprom ic IC12. I swaped these chips and the CDN cluster's displpay went blank with its original board. I put the CDN board in my original cluster and It worked and showed my original miles. So there is a setting in this eeprom that tells what display is in the cluster. Our display is a grey lcd with about 20 pins while the CDN is 5 pins and a dark lcd panel. Cant swap the panels because the plug is fixed onto the board. I need a sedan cluster for testing now ( I have a few Ideas) or the cable and programer they use to write data to these clusters (impossible find?). I love the look of the CDN cluster but still not willing to f-up my miles.

paultyler_82
10-02-2006, 04:16 AM
Wow so, the chips that store the information are interchangable between the two? and it actually translates the saved settings in the Canadian EEPROM to Miles when you put it in the US unit!? That is a good thing, it means that the display controller is what handles the unit measurement, I'd bet if located, it could possibly be reprogrammed. I'm wondering why the US lcd has more pins.... on the CDN model, the clock is even handled by the display whereas it is separate on the US... I would think the CDN would have more pins, unless it's maybe got a built-in controller?

tiksman
10-02-2006, 10:41 AM
I am not sure why the us has more pins. Maybe the pins light up each segment in the us version but in the CDN version it changes voltages on the pins to get the display to react. The CDN chip never converted to Miles it stayed in KM but now my cluster is using the CDN sub unit and showing my MILES because I swapped the eeprom IC12. I am now looling at a way to reprogram the eeprom. I am out of ideas with the sedan cluster because there is no clock or trip counter reset. Sedan Guys where do you set the clock and reset the trip. Is the clock still in the lcd on the display??
I have seen Odometer reprogramers and the list Yaris as being compatable but none say you can program to switch to miles. If they said that I would have bought one.

paultyler_82
10-02-2006, 08:56 PM
I am not sure why the us has more pins. Maybe the pins light up each segment in the us version but in the CDN version it changes voltages on the pins to get the display to react. The CDN chip never converted to Miles it stayed in KM but now my cluster is using the CDN sub unit and showing my MILES because I swapped the eeprom IC12. I am now looling at a way to reprogram the eeprom. I am out of ideas with the sedan cluster because there is no clock or trip counter reset. Sedan Guys where do you set the clock and reset the trip. Is the clock still in the lcd on the display??
I have seen Odometer reprogramers and the list Yaris as being compatable but none say you can program to switch to miles. If they said that I would have bought one.

Right, what I meant was... when you put the CDN EEPROM in the US cluster, it worked and still showed your milage... but did the number stay the same or did the US Cluster actually show the amount in miles? I.e. does it have the same number on the US cluster as it did on the CDN cluster, or did it actually convert the amount of kilometers on the chip to a proper number of miles?

jdgriswald
10-03-2006, 12:05 AM
I'm wondering why the US lcd has more pins....
Maybe it's because the US unit has a service interval indicator and the Canadian version doesn't.

paultyler_82
10-03-2006, 07:34 AM
Maybe it's because the US unit has a service interval indicator and the Canadian version doesn't.

That's not on the LCD itself, I think he's referring to the LCD panels themselves.

tiksman
10-03-2006, 09:27 AM
Yes the lcd panels themselfs. Let me get this correct for everyone. THe clusters have a small sub micro board that runs the cluster it unplugs from the guage board. This board houses the odo readout. When I took the CDN board off and installed my US board in the CDN cluster the display was blank. So it was clear something was diff on the CDN to US CBA. When I swapped IC12 the EEprom ,the cdn board is now working in the us cluster and US cba in the CDN cluster. Both Show the same miles and KM reading. My original US cluster still shows 1702 my original miles and the CDN still 3771 KM. The only DIff is now the sub boards are swapped and the eeproms are too. I have talked with a shop that program miles int replacement clusters and they say they may be able to program the CDN cluster to read miles :headbang: !!!!!
I will keep everone posted on that. Anyone know of a place to contact to get a new overlay made??

vodkalush
10-03-2006, 10:24 AM
.......... Anyone know of a place to contact to get a new overlay made??

I would check in your yellow pages for a metal shop and just have them make you one out of alum. As i think its still to early for aftermarket gauge cluster faceplates to be avail... although i havent checked.

good luck.

ChinoCharles
10-03-2006, 12:34 PM
How much was the CDN cluster anyway? Not cheap I'm guessing.

paultyler_82
10-03-2006, 05:24 PM
good man, tiksman! That's great news! As for the overlays, in an optitron, they're made from smoked acryllic... so you'd need to find a place that will print or silkscreen acryllic... I wonder if Black Cat Customs could help us out, all they do is custom gauges.

johnnyfive
10-05-2006, 01:49 AM
I am out of ideas with the sedan cluster because there is no clock or trip counter reset. Sedan Guys where do you set the clock and reset the trip. Is the clock still in the lcd on the display??


if you still interested in this information, sorry i am so slow to reply :)

there are 2 buttons, odo, and clock near our hazzard flasher button, and yes the clock is on the lcd display

out of curiousity, where do you reset your odo/clock? and do you have a picture of a hatch cluster removed from the dash?

tiksman
10-05-2006, 04:17 PM
I will post one up tonight. The reset switch is by the odo

tiksman
10-05-2006, 04:27 PM
There has been a lot of comunication between me and the odometer programer guy. I am close to getting him to agree to do it. I have a someone from a old neon fourm that may do overlays.

tiksman
10-05-2006, 04:30 PM
I checked my mail and the man has agreed to do it for $200. I want this to work bad . I may just fork up the cash and see what the does.

himself_himself
10-15-2006, 12:37 AM
I find that the LCD panel is capable of showing mpg or L/100km. Any idea if the reprogramming of the eeprom lead you to find if it's actually possible?

paultyler_82
10-15-2006, 02:18 AM
if you still interested in this information, sorry i am so slow to reply :)

there are 2 buttons, odo, and clock near our hazzard flasher button, and yes the clock is on the lcd display

out of curiousity, where do you reset your odo/clock? and do you have a picture of a hatch cluster removed from the dash?


On the hatches, the clock is separate from the Odo and has it's own setting buttons, there is also one of those little cluster mounted "peg buttons" to change between the odo/trip odos, and to reset the trip odos

paultyler_82
10-15-2006, 02:21 AM
There has been a lot of comunication between me and the odometer programer guy. I am close to getting him to agree to do it. I have a someone from a old neon fourm that may do overlays.

I could do overlays, it's just a matter of me getting off my lazy butt, designing them, silkscreening or laser printing the layers off onto acetate sheet and sandwiching the layers with clear silicone adhesive... but I don't have a laser printer to use, and I can't find my silkscreening stuff.

BMGYaris
11-12-2006, 04:44 PM
So wait, i dont know much about whats going on. Did we establish that you can switch out the clusters, everything works fine except it's primary units is Kilometers, but otherwise everythign works fine? all these eeprom is getting me lost, but if i can switch out clusters and just make mental conversions to miles that would work just fine with me

Russelt3hPirate
11-12-2006, 05:35 PM
the only issue would be odometer fraud, nothing serious. :lol:

tiksman
11-12-2006, 11:19 PM
Yes the cdn cluster works fine just my car has a warranty and free maint and I dont want to screw that up by using the cdn cluster I have. I have someone that will make it change to miles but 200 bucks and shipping off both clusters is not a option for me now so I am still stock.

Violin
12-29-2006, 01:34 PM
How about getting the European left handed digital version that is switchable between miles and kilometers? I have friends in Switzerland that would ship them to me if I only knew beforehand that it is compatable with the USDM version.

Do you have to desolder/resolder the eeprom unit or does it just plug in?

This is what they have: http://de.toyota.ch/Images/t7_yar05_car_gal_22_1024_tcm376-336744.jpg

spkrman
12-29-2006, 02:42 PM
for all this effort, why not just make a custom cluster?

use the same LCD display, and just relocate everything else how you see fit.

Would just take some solder and a little fabrication... but it could be done... and it sounds like there is no "plug and play" solution anyway.

paultyler_82
12-29-2006, 11:35 PM
How about getting the European left handed digital version that is switchable between miles and kilometers? I have friends in Switzerland that would ship them to me if I only knew beforehand that it is compatable with the USDM version.

Do you have to desolder/resolder the eeprom unit or does it just plug in?

This is what they have: http://de.toyota.ch/Images/t7_yar05_car_gal_22_1024_tcm376-336744.jpg

There's even a problem there in that US Customary Miles are not quite equal to Imperial Miles

ChinoCharles
12-30-2006, 12:52 AM
What we need to do is contact a company that can fabricate a piece like this and notify them that there is a need in this community for a cluster with a tach.

Google, here I come.

Nutzoids
12-30-2006, 01:46 AM
What we need to do is contact a company that can fabricate a piece like this and notify them that there is a need in this community for a cluster with a tach.

Google, here I come.

I have been working on that... Give me time!

http://www.maximatech.com/products/custom

They are here in the Philly area... So I'm hoping for some face time after the Holidays... Wish me luck everyone

:evil:

spkrman
12-30-2006, 02:54 AM
ooo nice link :)

Looks promising.

Violin
12-30-2006, 08:09 AM
The maximatech link won't work. I guess there is such a demand that we crashed their servers.

Oh... and good luck.

Violin
12-30-2006, 08:15 AM
This is what my wife's Sienna has:

http://www.toyota.com/images/vehicles/2007/sienna/gallery/interior/large/photo_2.jpg

It has three shades of blue. When I drive it, it's hard to keep my eyes on the road.

I would kill for something like that in my Yaris.

ChinoCharles
12-30-2006, 01:20 PM
As would I!

tiksman
12-30-2006, 10:55 PM
How about getting the European left handed digital version that is switchable between miles and kilometers? I have friends in Switzerland that would ship them to me if I only knew beforehand that it is compatable with the USDM version.

Do you have to desolder/resolder the eeprom unit or does it just plug in?

This is what they have: http://de.toyota.ch/Images/t7_yar05_car_gal_22_1024_tcm376-336744.jpg

The Epprom is a 8 pin surface mount chip it is not easy to change. I would be interested in one of those that switch km and miles. Still cant swap the prom but it could be set to your miles reading

lost.mind
01-20-2007, 08:47 PM
Did Maxima work out?

Th3 Hatch
01-20-2007, 08:52 PM
why not just run a Defi VSD?

acrbill
01-20-2007, 09:35 PM
why not just run a Defi VSD?

Digital tachometers suck. Heads up displays suck, and it probably cost an arm and a leg. Plus its one more thing that some jackass will see and steal.

Black Yaris
01-20-2007, 11:28 PM
What we need to do is contact a company that can fabricate a piece like this and notify them that there is a need in this community for a cluster with a tach.

Google, here I come.

Dakota Digital Gauges

ricepower
02-26-2007, 02:28 AM
The Epprom is a 8 pin surface mount chip it is not easy to change. I would be interested in one of those that switch km and miles. Still cant swap the prom but it could be set to your miles reading

Do you have the part number of the Epprom smt chip? Also for curiosity, I want to borrow a cluster with tach. Does the ECU records the odo reading of each cluster installed? My yaris still on warranty and I don't want to end up fraud on it..:wink:

ricepower
02-27-2007, 02:40 AM
:thumbsup: UP