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Drove home yesterday and noticed the "sys" warning flashing, looked down about 5 minutes later and noticed that my speedometer was stuck on 61 mph and wouldn't move. I tried pushing all of the dash buttons to change the reading and that also did nothing. Then I pushed the cluster in fairly hard and it came back to normal, but "sys" still flashes. has anybody had this happen? I am going to look into it tomoorw morning.
I just spent alot of time trying to find out what was wrong with mine. I took the cluster out and sprayed the connector with contact cleaner but still had the problem. Today I removed the CCM, which is located behind the radio, removed the two connectors, cleaned them, and put it back together and my problems are gone. You have to take the underside panels off on the drivers side dash. Remove the radio and you can see the silver CCM behind it. There is a side panel that you have to remove under the dash then you can pull the CCM out and do the job. To check and see if its a dirty connection on the CCM, before you pull it out, you can push on the connectors that you will be able to see once you remove the radio while the key is in the aux position and see if it effects the LCD. There are a few more items that will have to be moved out of the way to get the CCM out, but you'll see them as you get into it.
Hopes this helps!
Sounds like a cold solder between the two circuit boards. I took my dash apart and used a low watt solder gun and and re-soldered the connections and it worked fine after, remember you might not be able to see the cold solder, you could also just heat up the old solder until it melts and then let it cool, that will also fix a cold solder.
(A cold solder is when the solder breaks, think of it like a paper clip that you bend back and forth until it breaks. The solder will do this as it goes through numerous heat cycles (years worth), heating, shrinking, heating, shrinking, then break.)