RE: Speedometer trouble on 2001 Caravan
No, no, no! Don't replace the cluster or drill holes or pull apart the dash! it's much simpler than that! I just had that same problem start on Sunday for me. The speedometer wasn't working on the way to church and now my wife just reminded me about it again tonight. So I checked out some other sites and noticed people were having problems with the spedo due to the battery and battery acid leaking. So I checked mine right away. I replaced the battery and then checked the spedo, still same problem. The needle was below the little pin and would not go.... so I started looking at the dash and how to take it apart. Well, fortunatley, not that hard! I pushed the trip button and held it for about 10 seconds, don't know whyI did it, but I did. So after holding the trip button for awhile, I saw an error code come up and read error code check, it went through a slew of numbers... (i.e., 6666666666, 777777777, 11111111, EEEEEEEEEE, and 0000000000 to end it off I believe). After all the numbers displayed then the lights lit up and went through a little sequence and then all the sqares lit up around each gear on the shift part of the dash and then all the lights went off. I then turned the ignition on and the spedo needle reset. It bounced back around where it was supposed to shot straight up and then laid back where it supposed to be and is fine. I drove around for awhile to make sure it's working and everything is great!
Soooo, don't tear your dash apart or drill holes! Just replace the battery, make sure to clean the connectors really well as it sounds like these Caravans have an issue with a lot of corrosion on the connectors. That was definitely the case with mine. Cleaned them well, put in WalMart's top of the line battery and then did the reset as explained above. All is well.