My CC-6000 was working fine but I took it off the bike when I parked it. When I came back and put it back on to the bike, the MPH, MAXS, Distance quit working. The timer was the only thing that was working. Could this be a sign of a weak battery? Or what else would have caused this?

Probably weak battery or dirty contacts on the computer or mount. Dirty contacts can be cleaned with a pencil eraser.

Not limited to that particular model, the common issues I've had with computers are:

Dead/weak battery in display unit

Dead/weak battery in sender unit on wireless models

Improper seating of the display unit so that it doesn't activate - there's often a little button on the back of the display unit that is depressed by a molded protrusion in the mounting bracket which permits the display unit to accept signals.

Thanks, I will put a new battery in and see if that does the trick. The contacts all look good. I have had this computer for well over 15 years and, although you will find this hard to believe, I have changed the battery only once! Go figure, but I love this little computer.

15 years????
It's time for a new one.

Well, I put a new battery in and it still does not work. Since the unit was working just fine until I removed it from the mounting while I locked up the bike, I am assuming that the contacts are not working for some reason. They are clean as a whistle, but the one in the center looks as though it is further up inside the unit than the other ones. Oh well, I guess you may be right - time for a new one. A wireless would be nice.

Thanks for the help.