Hey there Blazer Forum! I just recently got a 2002 Blazer and the shift indicator lights and odometer lights do not work. After doing some reading online, it seems as though the most popular cause is a bad solder joint on the board. I re-soldered this joint (it's supposed to be a shared ground between the two) and still no luck. Whenever I plug the board in and apply pressure to the board between the two displays, they both come on. I'm thinking it could be in the connector. Thanks in advance!