Odometer reset

[tmoretta]

Any suggestions/recommendations on who can reset my WRX odometer to 0? I'd rather not have my brand new 818 start its life with 112,000 miles on the clock. Is the re-calibration done in the cluster, or the ECU?

[Bob_n_Cincy]

Any suggestions/recommendations on who can reset my WRX odometer to 0? I'd rather not have my brand new 818 start its life with 112,000 miles on the clock. Is the re-calibration done in the cluster, or the ECU?

It is done in the cluster by counting pulses from vehicle speed sensor. There is no signal for the odometer coming from the ECU.

Just a note. Running the wheels backwards will NOT lower the odometer ( Ferris Bueller's Day Off) on a 1961 Ferrari GT California or on an 02-07 Subaru.

[RM1SepEx]

It is done in the cluster by counting pulses from vehicle speed sensor. There is no signal for the odometer coming from the ECU.

Just a note. Running the wheels backwards will NOT lower the odometer ( Ferris Bueller's Day Off) on a 1961 Ferrari GT California or on an 02-07 Subaru.

That was really an 80's Ford Mudstang... with a sexy body. It would have had a mechanical ODO that could run backwards. I've always thought it was a very sexy car and building one would be great!

[Xusia]

That was really an 80's Ford Mudstang... with a sexy body. It would have had a mechanical ODO that could run backwards. I've always thought it was a very sexy car and building one would be great!

I believe it was actually a kit car. It may have used Mustang running gear, but I'm pretty sure it was an original frame/body. I recall because I looked into that kit car back when it was still around.

[DodgyTim]

For mine (a 2006) I sent the cluster away, not the Ecu
Interestingly the guy who reset it couldn't take it back to zero, the lowest he could do was 0000095 Kms
Cost was $100 plus shipping, I had mine done in Australia, so i'm no help to you there

[07FIREBLADE]

Here is a place that sounds pretty promising.

http://www.whitegauges.net/products/...t-Service.html

[tmoretta]

I checked out whitegauges.net, and it turns out they only work on traditional mechanical gauges, not electronic. They were, however, able to recommend Kevin Leonard in Napoleon Ohio (419 769 1845) who can do the reset.

[grathke]

This place looks promising too:

http://www.odo-pro.com/digital-mileage-correction.html

I've not used them yet, if anyone does, let us know how it goes.

[07FIREBLADE]

I was afraid of that. I also just sent them an email and they didn't respond yet. Are you going to have Kevin do yours?

[tmoretta]

Yes. I'll just send him the cluster, and he will return it with the bill.

[Larry J W]

I looked at hooking a pulse generator up to it running it up to 1,000,000 miles ie back to zero. At 140 MPH and running up another 900,000 miles it would only take 6,428 hours, or 268 days, or 10 months. Oh well I may run mine up to 100K to call it good! It would be a great post if someone found a better way.

[Quiny]

I looked at hooking a pulse generator up to it running it up to 1,000,000 miles ie back to zero. At 140 MPH and running up another 900,000 miles it would only take 6,428 hours, or 268 days, or 10 months. Oh well I may run mine up to 100K to call it good! It would be a great post if someone found a better way.

I was thinking the same thing but I figured I would run the pulses as fast as possible. I cant imagine there is a speed limit. The counter is on this IC - TMPH8820CKF manufactured by NS Japan the only other identification #'s are 1048 and 048KA. If I could find the data sheet on it then I could figure out how to reset it by the pinout. No luck so far.

[K3LAG]

I was thinking the same thing but I figured I would run the pulses as fast as possible. I cant imagine there is a speed limit. The counter is on this IC - TMPH8820CKF manufactured by NS Japan the only other identification #'s are 1048 and 048KA. If I could find the data sheet on it then I could figure out how to reset it by the pinout. No luck so far.

I just tried it. Above about 705 MPH (about 800 Hz) it won't process the signal. I need to go 892000 miles which would take about 53 days.

Kind of fun to watch the odometer click off a mile in about 5.1 seconds.

Larry

[Bob_n_Cincy]

I just tried it. Above about 705 MPH (about 800 Hz) it won't process the signal. I need to go 892000 miles which would take about 53 days.

Kind of fun to watch the odometer click off a mile in about 5.1 seconds.

Larry

That is cool, you could set it up to count until first test drive.
Bob

[K3LAG]

I just tried it. Above about 705 MPH (about 800 Hz) it won't process the signal. I need to go 892000 miles which would take about 53 days.

Kind of fun to watch the odometer click off a mile in about 5.1 seconds.

Larry

I tweaked the signal a little more.

Now 914 Hz, 802 MPH, 46.34 days. It's really on the hairy edge. I don't think I can get any more out of it.

IMG_0063.jpg

Larry

[wleehendrick]

I tweaked the signal a little more.

Now 914 Hz, 802 MPH, 46.34 days. It's really on the hairy edge. I don't think I can get any more out of it.

IMG_0063.jpg

Larry

Spoken like a true engineer...



f69a88d77826b242c26e337490d75e114399790b8362407b82e8132ef8d0b597.jpg

[longislandwrx]

Now 914 Hz, 802 MPH, 46.34 days.
IMG_0063.jpg

Larry

I'll be back in March

[Quiny]

I tweaked the signal a little more.

Now 914 Hz, 802 MPH, 46.34 days. It's really on the hairy edge. I don't think I can get any more out of it.

IMG_0063.jpg

Larry

very cool, is that a 5v pulse?

[rtz]

" a modified MG with a fiberglass body "

http://wheels.blogs.nytimes.com/2010...rari-for-sale/

[Kyle@AJW]

I hear that these people http://www.tacomaspeedometer.com/index/index.php can change it.

Another option is to buy a new one from the dealer. I would opt out for a STI cluster tho.

[Kurk818]

I hear that these people http://www.tacomaspeedometer.com/index/index.php can change it.

Another option is to buy a new one from the dealer. I would opt out for a STI cluster tho.

I drive by this shop daily on the way to work! Ill have to look into this.

[BC Huselton]

http://www.sayospeedometers.com/contact.html

They say they do it all of the time!

[iWire]

Once you car is running you could always take it to the closest Subaru dealer and they can reset it.

[tmoretta]

Are you sure the dealer will do that kind of work? Any idea on cost?

[iWire]

Are you sure the dealer will do that kind of work? Any idea on cost?

Depends on the dealer, but yes they usually do. They'll probably charge you for an hour, so depending on the labor I would say around $100.

[DodgyTim]

I'm not sure about the US but in Australia the dealer reset is only possible for very low miles, so the dealer can remove delivery miles and present the car as new.
Once a certain mileage threshold is passed, the dealer reset won't work, but as I said, it may be different for other countries.

[iWire]

If the dealer won't do you could try one of these as well. Some guys on RS25 have used them for their Subaru cluster odometer reset.

http://www.paspeedo.com/

http://www.aaellc.com/

[Kalstar]

This is who I called.

http://www.mileagecorrectionservices...tion-services/

They need the vin # and a letter as to why you are requesting the changing of miles. I told them what I was doing and they were fine with making the change.

[EODTech87]

This is who I called.

http://www.mileagecorrectionservices...tion-services/

They need the vin # and a letter as to why you are requesting the changing of miles. I told them what I was doing and they were fine with making the change.

how much did they want?

[Erik W. Treves]

This is who I called.

http://www.mileagecorrectionservices...tion-services/

They need the vin # and a letter as to why you are requesting the changing of miles. I told them what I was doing and they were fine with making the change.

and how much did they quote you?

[Kalstar]

and how much did they quote you?

It was around $75.00 US dollar plus shipping.

[FFRSpec72]

Wouldn't the easiest be to just offer the preprogrammed EEPROM for a given set of cluster/EEPROM versions, and let the folks mess with the de soldering and soldering and then your life is simpler and easy to mail out.

So I send you my EEPROM, you send me back (1) my old EEPROM unchanged (2) a EEPROM socket and (3) a new EEPROM that has been copied from the EEPROM I sent you and the mileage values changed.

[K3LAG]

Wouldn't the easiest be to just offer the preprogrammed EEPROM for a given set of cluster/EEPROM versions, and let the folks mess with the de soldering and soldering and then your life is simpler and easy to mail out.

So I send you my EEPROM, you send me back (1) my old EEPROM unchanged (2) a EEPROM socket and (3) a new EEPROM that has been copied from the EEPROM I sent you and the mileage values changed.

That could probably work, but some people seemed to want to avoid doing the desoldering and soldering themselves. It would definitely be easier for me and less expensive.

Larry

[Bob_n_Cincy]

here is a video on reprogramming the cluster memory chip


Her is a video on changing the color of the back lighting on the cluster.
http://www.youtube.com/watch?v=Ym4keiOblGo

[Xusia]

For what it's worth, I called a bunch of speedo repair places (most listed previously in this thread) and learned the following:
Sayo Speedometers: $150 + shipping
Tacoma Speedometer: They claimed resetting the odometer to zero is against the law, and wanted no part in it. This was after I explained the original car is being dismantled and that the cluster would go into a new car.
Palo Alto Speedometer: $175 + shipping
Advanced Auto Electronics: $140 + shipping
Subaru Mileage Correction Services: They are in the UK, so I didn't bother.

I plan to go with Advanced Auto Electronics, not because they are the cheapest, but because I liked what they had to say. They actually disassemble the cluster, reprogram the chip(s) directly, and then calibrate every single guage. Awesome! And they were friendly too...

[metros]

Thanks for sharing that info xusia.

[nkw8181]

I sent mine to http://www.aaellc.com. it was 140 which included shipping it back to me. They changed all the bulbs and set the speedometer to 15 miles (lowest it would let them). I expect to be very happy with the result (will be a while before testing since I need power). 15 vs 121k, yep much better.

[nkw8181]

I'm not sure how they did it but they said it now shows 15 miles. (I can't verify until I hook it up to power)

I sent mine to http://www.aaellc.com. it was 140 which included shipping it back to me. They changed all the bulbs and set the speedometer to 15 miles (lowest it would let them). I expect to be very happy with the result (will be a while before testing since I need power). 15 vs 121k, yep much better.

[STiPWRD]

I'm not sure how they did it but they said it now shows 15 miles.

I sure am tempted to send mine over, might just follow through an do it!

[STiPWRD]

Hey Larry, I too am eagerly waiting to see how your approach turns out. One question though, I couldn't tell what voltage range you were using in post #24. I'm trying to replicate this on my 06 Sti cluster with a signal generator but the result is not working consistently. For example, the speedo dial will spike for about a second and then fall back down. After a bunch of attempts, I got the odometer to log 0.2 miles but that's it. I'm using a square wave from 0-5V at 800Hz with 50% duty cycle (5V for 625usec, 0V for 625usec). I got the same result with a 15% duty cycle as well.