CCM problem source?
 

Hi all,

After several months of trying and lots of head scratching I am still not able to locate the problem of my speedo LCD on my !990. Itscrambles after about an hour of running. I replaced the ECM, checked out the speedo processor board, and are currently checking wireing. The shop manual and codes point towards either a ground short or a CCM failure. I have been looking for a source to buy a CCM but, have not found one. All normal parts houses I've checked don't carry one. Any suggestions on where I can get one or thoughts on my problem?[sm=headbang.gif]

RE: CCM problem source?
 

I have a wiring diagram that I got through www.ecklers.com ,you can get them for your year of Vette. ;)
If it is a ground prob, the diagrams will help you find them, and you can make sure they are secure. :)

Ya might try these, for your CCM.....
www.ecklers.com
www.summitracing.com
www.zipcorvettes.com
www.midamericamotorworks.com

Hope this helps. :eek: