Burned out, broken wire, bad connection, take your pick. Remove the cover on the gages and pop out the rubber holders that hold the lights and take a look.
Assuming you've already checked the bulbs, the common ailment is a broken wire in your harness. Certain places in the harness they use wire splices. In other words one wire is basically crimped to 2 to "T" off wiring 2 ways from 1. These splices are a major problem with wires breaking. You can either open your wire harness and find the break or simply parellel another wire from a working bulb to one of the nonworking.
321,000 miles on KZ's that I can remember. Not going to see any more.
