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Changing Instrument Cluster - odometer question

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Old Sep 6, 2013 | 09:52 AM
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Default Changing Instrument Cluster - odometer question

Is each instrument cluster's odometer mileage reading "locked in" to that individual instrument cluster?

I want to install a replacement instrument cluster in my '02 C5. All of the used instrument clusters offered for sale on e-bay disclose each unit's mileage reading (as shown on the odometer).

If I buy one of these e-bay units, will I be "stuck" with the mileage reading that is on the replacement instrument cluster's odometer, or is my vehicle's odometer reading really saved somewhere in the C5's computers and simply projected into the odometer?

If I am "stuck," with the replacement unit's mileage reading, is it possible to re-set the that replacement unit's mileage reading so that it equals the mileage currently reported on my existing cluster?

Makes a big difference to me - I want my replacement instrument cluster's odometer mileage to be identical to the mileage reported in my current one.

Thanks for your responses.

The Lizzard
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Old Sep 6, 2013 | 10:12 AM
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You can have it done at a dealer (Take both clusters there, or perhaps with the car) or mail order it done (send both clusters).
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Old Sep 6, 2013 | 01:44 PM
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Originally Posted by LoneStarLizzard
Is each instrument cluster's odometer mileage reading "locked in" to that individual instrument cluster?

I want to install a replacement instrument cluster in my '02 C5. All of the used instrument clusters offered for sale on e-bay disclose each unit's mileage reading (as shown on the odometer).

If I buy one of these e-bay units, will I be "stuck" with the mileage reading that is on the replacement instrument cluster's odometer, or is my vehicle's odometer reading really saved somewhere in the C5's computers and simply projected into the odometer?

If I am "stuck," with the replacement unit's mileage reading, is it possible to re-set the that replacement unit's mileage reading so that it equals the mileage currently reported on my existing cluster?

Makes a big difference to me - I want my replacement instrument cluster's odometer mileage to be identical to the mileage reported in my current one.

Thanks for your responses.

The Lizzard
I have read that it stored on a component in the panel that can be swapped with the original so mileage stays the same.
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Old Sep 6, 2013 | 04:25 PM
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SEE,, there are so many " I THINKS ".

Until some one says "ITs ON THIS PART and I swapped it and the mileage went with it", Im still on the wait and see bench.

Call your dealer and see if they even know what your talking about. Alot of them dont. If you find a dealer that can actually do it in house and not send it off to a sub contractor, use them.

If they have to send it off, it may be less for you to actually contact a company that can do it and send it off your self!

BC.
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Old Sep 6, 2013 | 06:57 PM
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Originally Posted by Bill Curlee
SEE,, there are so many " I THINKS ".

Until some one says "ITs ON THIS PART and I swapped it and the mileage went with it", Im still on the wait and see bench.

Call your dealer and see if they even know what your talking about. Alot of them dont. If you find a dealer that can actually do it in house and not send it off to a sub contractor, use them.

If they have to send it off, it may be less for you to actually contact a company that can do it and send it off your self!

BC.
Thanks, Bill. That was my reaction as well. I will wait for a few more responses and see whether any pioneers wade in, and if so whether they got the land or the arrows.

The Lizzard
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Old Sep 8, 2013 | 02:31 PM
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My 2004 service manual states that whenever the instrument panel cluster is removed from the vehicle do not set it on its face for more than 15 minutes or damage to the fluid-filled air core gauges may result. Buying one off of ebay could be sketchy without a return guarantee of some sort.
Is the lens scratched? That can be replaced by itself.
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Old Sep 8, 2013 | 03:03 PM
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The manual also the IPC permanently stores this information in memory. Does not indicate that is in the IPC or from the PCM memory.
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Old Sep 8, 2013 | 03:52 PM
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Mileage is stored in the IPC. Dealers can reprogram them, but they rarely know how. Contact USSPEEDO. They'll hook you up.

Last edited by KOZ; Sep 8, 2013 at 05:03 PM.
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Old Sep 8, 2013 | 04:51 PM
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Originally Posted by Kehraus
The manual also the IPC permanently stores this information in memory. Does not indicate that is in the IPC or from the PCM memory.
It is NOT in the PCM MEMORY!! You can swap out the PCM and it has ZERO effect on the IPC! Its NOT in the BCM either.


If you get a used IPC from another C5 and that C5 has 130,000 miles on the IPC,,, when you install it in your car,, your car will now have 130,000 miles.

BC
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Old Sep 9, 2013 | 09:49 PM
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Hey Bud Try this, It worked for me...
as long as the led readout is not damaged in your old cluster...

http://forums.corvetteforum.com/c5-t...ansferred.html
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Old Sep 9, 2013 | 10:13 PM
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I have a 99 FRC, when I bought it the cluster showed 144,XXX miles. I bought a Z06 cluster from a 2001 off eBay (a steal @ $150), I was told it had 2,5xx miles on it. When I installed it the 2,5xx mileage is now displayed in my car. I can't offer any advice on how to make the mileage correct on a replacement C5 cluster but I know for a fact mileage is stored on the cluster.

A C4 is different. I did a cluster change out on a 96 and the mileage stayed the same.
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Old Sep 10, 2013 | 08:32 AM
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Originally Posted by gr8-78
Hey Bud Try this, It worked for me...
as long as the led readout is not damaged in your old cluster...

http://forums.corvetteforum.com/c5-t...ansferred.html
If all you are doing is replacing the IPC to get different faces, etc. you can change out the DIC board from your old cluster to the new one and maintain the original mileage. If like me, you need the new cluster because your DIC PC board is bad, the mileage can be reprogrammed into the new board. I could not find anyone local, including dealers, who could or would do it. After extensive searching on the subject, I found Prospeedo could do it if I sent them the PC board. They turned the board around the day they received it and I got it back in about a week total time out of the car. Cost about $285 including return shipping. Their website is:

http://www.prospeedo.com/index.php/p...er-programming
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Old Sep 10, 2013 | 09:03 AM
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Finally found the place I was given locally. These guys are considerably less money than elsewhere (especially listed above) and way less than my local dealerships. I did find a local repair shop who can do the flash as well, they want considerably less money yet, but don't like doing them. Mostly due to fear of brick'n the system on any of the newer cars where all the modules shut down if they are flashed wrong I guess.

H & R Radio Services
153 York Road
Warminster, PA. 18974

Last I talked with them they wanted $125+shipping. But, all things considered, swapping out the module in the link above is the best DIY alternative.
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Old Sep 10, 2013 | 09:05 AM
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Old Sep 10, 2013 | 01:28 PM
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Well,,,,,, that's the most POSITIVE explanation that I have seen as to where the mileage is storred and computed.

I would consider that the correct answer.

I would LOVE to expierment on a bad board and see if I could track down the source of the noise on the dinger circuit!

If anyone has a bad board,, that they can do without let me know.. Ill pay shipping!

BC
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Old Sep 10, 2013 | 02:30 PM
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From: Central PA. - - My AR15 identifies as a muzzleloader
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Bill, if you want, I'll give you the entire cluster that I'll have left over. Thing is, mine works just fine, so if you needed a dead one, you'll have to kill it yourself.

It may be a while though before I get to it. I'm not in any rush to spend a few hours bending over the car just yet.

Last edited by K-Spaz; Sep 10, 2013 at 02:36 PM.
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Old Sep 10, 2013 | 02:47 PM
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Ill take any old unwanted old C5/C6 parts I can get my hands on.

Thats how I learn and figure out how to REPAIR instead of replace. I had a good used one to expierment with but I donated it to someone that was in dire need for a cluster and had no funds for a new one!

I have another one but it SHOT!
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Old Sep 10, 2013 | 04:52 PM
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Well, let me heal up a bit so I can get to it. I just picked up my car from the inspection station and there's a marker light out on the right side rear. I couldn't bend over long enough to get to it and had to let them take care of it. So, getting that cluster out is a project for next month or so. But, I'll definitely keep you in mind, and you can have the old parts, perhaps minus a few if I break something on one doing the swap. (I don't normally break stuff, but ya never know)
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Old Mar 10, 2016 | 01:23 PM
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Thanks for refreshing the DIC-swap post. I searched in vain for it a few years ago, even though I knew I'd seen it before.

Its one of those pieces of info that is really handy for folks who are tearing into their gauge clusters (to replace gauge faces, etc.) and screw something up.

Sorry to see you go, but enjoy your next ride....

The Lizzard
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