Sync odometer from cluster to ECM - The 1947 - Present Chevrolet & GMC Truck Message Board Network

61_FL_Apache · 05-07-2019, 08:29 AM

My daughter has a 2000 Silverado 1500 and it has 287k on it. We replaced the cluster with one from a boneyard because the PRDL display was missing.. The new cluster has 150k on the odometer. Is there a way to sync the new cluster with the ECM to show the correct mileage?

shifty · 05-07-2019, 02:01 PM

This thread from GMT400 covers adjusting the odometer part: https://www.gmt400.com/threads/clust...5/#post-449362

I have no idea how to get the actual mileage out of the ECM though.

61_FL_Apache · 05-07-2019, 02:16 PM

This one has a digital display, but the mileage is stored in the cluster somewhere. We hooked up a fancy scan tool and it was able to tell us the mileage from the ECM. I figured the cluster would read that info from the ECM and display it on the cluster.

The link you sent is for analog odometers.

The picture in this link will show you the digital display.
https://www.bing.com/images/search?v...vt=0&eim=1,2,6

shifty · 05-07-2019, 04:40 PM

Ah! That's the 99-06 NBS cluster. I thought maybe she had a 00 OBS old cluster or something because this was posted in the 88-98 forum.

Might have more luck posting in the next generation's subforum dealing with 99-06. Not sure how much that one is frequented though.

61_FL_Apache · 05-07-2019, 04:51 PM

Crap! My bad on wrong post location! I will re-post there.

**Palf70Step** · 05-07-2019, 08:41 PM

I moved it for you Steve, then saw your other one. so I hid it so there is only one and now one yelss at you or sends you to facebook jail

61_FL_Apache · 05-08-2019, 07:13 AM

Quote:

Originally Posted by Palf70Step

I moved it for you Steve, then saw your other one. so I hid it so there is only one and now one yelss at you or sends you to facebook jail

Thank you Bill!

**hatzie** · 05-08-2019, 11:30 AM

Quote:

Originally Posted by shifty

Ah! That's the 99-06 NBS cluster. I thought maybe she had a 00 OBS old cluster or something because this was posted in the 88-98 forum.

Might have more luck posting in the next generation's subforum dealing with 99-06. Not sure how much that one is frequented though.

There are at least two generations of T800 clusters. First design was 99-02. 03-07 used a different cluster than the first design trucks. I'm not positive that the 99 cluster can be used on 00-02 vehicles...

I thought the PCM or BCM got its' mileage info from the cluster so once you plug in the new cluster and mate it to the system the controller will have the mileage from the new cluster.

If you have a record of the mileage from the old cluster... There are tools that that will allow you to adjust the mileage to match the old cluster. They aren't cheap.

The tool to re-program clusters is not inexpensive. I'd get the original cluster repaired and swap it back in or take it to a speedometer repair outfit and get the replacement odometer matched to the old one. You may be able to horsetrade the old cluster for the odometer match.

61_FL_Apache · 05-09-2019, 07:43 AM

Thank you for the feedback John.

mMad Dawg · 05-20-2019, 01:42 PM

I replaced the cluster in my 2000 Silverado. I plugged it in and turned the key on. It read the the mileage of the old truck. I turned the key off and then started my truck. It now reads my original mileage. No scan tool. Hope this helps. Gord

**truckdude239** · 05-24-2019, 08:29 AM

Mileage is stored in the cluster only way to get proer mileage is to send cluster out for reprogram or unsolider swap the prom chips off the boards

EVRLET · 05-26-2019, 12:40 AM

Agreed. Mileage is stored in the cluster and not the PCM. Verified this today because I picked up an NBS cluster with trans temp. My old and new cluster work fine and they displayed different mileages.

05-07-2019, 08:29 AM	#1
61_FL_Apache Who Me? Join Date: Sep 2010 Location: Royal Palm Beach, FL Posts: 4,067	Sync odometer from cluster to ECM My daughter has a 2000 Silverado 1500 and it has 287k on it. We replaced the cluster with one from a boneyard because the PRDL display was missing.. The new cluster has 150k on the odometer. Is there a way to sync the new cluster with the ECM to show the correct mileage? __________________ Steve 1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold)

05-07-2019, 02:01 PM	#2
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,373	Re: Sync odometer from cluster to ECM This thread from GMT400 covers adjusting the odometer part: https://www.gmt400.com/threads/clust...5/#post-449362 I have no idea how to get the actual mileage out of the ECM though. __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.

05-07-2019, 02:16 PM	#3
61_FL_Apache Who Me? Join Date: Sep 2010 Location: Royal Palm Beach, FL Posts: 4,067	Re: Sync odometer from cluster to ECM This one has a digital display, but the mileage is stored in the cluster somewhere. We hooked up a fancy scan tool and it was able to tell us the mileage from the ECM. I figured the cluster would read that info from the ECM and display it on the cluster. The link you sent is for analog odometers. The picture in this link will show you the digital display. https://www.bing.com/images/search?v...vt=0&eim=1,2,6 __________________ Steve 1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold)

05-07-2019, 04:40 PM	#4
shifty Questionable Join Date: Mar 2005 Location: Atlanta Posts: 13,373	Re: Sync odometer from cluster to ECM Ah! That's the 99-06 NBS cluster. I thought maybe she had a 00 OBS old cluster or something because this was posted in the 88-98 forum. Might have more luck posting in the next generation's subforum dealing with 99-06. Not sure how much that one is frequented though. __________________ If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.

05-07-2019, 04:51 PM	#5
61_FL_Apache Who Me? Join Date: Sep 2010 Location: Royal Palm Beach, FL Posts: 4,067	Re: Sync odometer from cluster to ECM Crap! My bad on wrong post location! I will re-post there. __________________ Steve 1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold)

05-07-2019, 08:41 PM	#6
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,249	Re: Sync odometer from cluster to ECM I moved it for you Steve, then saw your other one. so I hid it so there is only one and now one yelss at you or sends you to facebook jail __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

05-09-2019, 07:43 AM	#9
61_FL_Apache Who Me? Join Date: Sep 2010 Location: Royal Palm Beach, FL Posts: 4,067	Re: Sync odometer from cluster to ECM Thank you for the feedback John. __________________ Steve 1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold)

05-20-2019, 01:42 PM	#10
mMad Dawg Registered User Join Date: Jun 2009 Location: Calgary AB. Posts: 88	Re: Sync odometer from cluster to ECM I replaced the cluster in my 2000 Silverado. I plugged it in and turned the key on. It read the the mileage of the old truck. I turned the key off and then started my truck. It now reads my original mileage. No scan tool. Hope this helps. Gord

05-24-2019, 08:29 AM	#11
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: Sync odometer from cluster to ECM Mileage is stored in the cluster only way to get proer mileage is to send cluster out for reprogram or unsolider swap the prom chips off the boards __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

05-26-2019, 12:40 AM	#12
EVRLET Registered User Join Date: Aug 2015 Location: Las Vegas NV Posts: 371	Re: Sync odometer from cluster to ECM Agreed. Mileage is stored in the cluster and not the PCM. Verified this today because I picked up an NBS cluster with trans temp. My old and new cluster work fine and they displayed different mileages. __________________ Customization is what you want it to look like -- not what other people think it should look like



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.