All 8s shown in the ODO means you've done a hell of a lot of miles, or your cluster has an internal fault.

 

Would the cluster still have a fault in an 05-06 with the odometer data being stored in the pcm and not the cluster? Just searching out all my options before I go with a new cluster. That's kind of my last resort.

 

So to test the cluster you push the odometer button and turn the key to just before the crank position. What happens when you do that? Is that button sticky or the switch behind it bad?

 

I'll try that today and report back my findings. Thanks!

 

Mileage is supposed to be stored in both cluster and PCM. If cluster is changed you might need to declare difference between old and new clusters if it comes to a sale.

Cluster check sweeps gauges and tests lights. In early TJs odometer displays all 1s,2s 3s etc. In late models number 8 is scrolled across, cluster software version SoF is displayed, and certain cluster faults will be reported.

 

@philbilly20 hey check out this post. Lots of reading and some success stories. Missing ground. Cleaned pins.

Fix your TJ's dead gauges (write-up) - JeepForum.com

Fix your TJ's dead gauges Here is a quick write-up on how to fix your dead gauges. I had a problem with them dying, and later found out that it was a

www.jeepforum.com

 

Mileages stored in cluster only on the NGC pci pcm

When I got replacement pcm they needed vin for skim programing but not odometer reading
And with new pcm cluster still displayed correct miles reading


Does the cluster self check work normally?


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Sorry, got busy the past few days. No fix yet. Cluster self check worked. Honestly I'm stumped, probably a bad cluster? Everything else on it works correctly, every gauge, trip meter, self check, and all the check lights. The only thing that isn't reading is the odometer.

 

Would an OBD2 reader pull the mileage off of it?

 

UPDATE

Ordered an odometer off eBay. Plugged it in and it reads the mileage that the odometer came with. Must've been the old odometer.

 

You mean you replaced the whole cluster

Like I posted above odometer reading is stored in cluster thus a cluster swap bring miles on cluster with it

On the earlier CCD cluster used on 97-2000 TJ and 96-2001 XJ mileage was stored like this and could be reprogrammed

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Glad to hear you got it fixed! Thanks for the update.