Check the fuse first off. More commonly than not a corroded ground connection is usually the source of the problem on dashboard gauges if they have all stopped working at the same time. Also I've seen where plug in the back of the cluster becomes loose. but not loose with a plugs falling out but loose Worthy pins in the molex connector are not making suitable contact depends on the other side of the molex connectors. I've used needle nose pliers to gently twist the flat pins a little catty-cornered so they will jam into their respective contacts more tightly. Also you'll need to make sure the cluster is getting power, everyday should be powered off the same wire.