All 3 of the Primary gauges have both an analog and digital display. The needles may indicate properly, but the digital display at the bottom may be out. After removal you will notice three Beige nuts with a Standard screwdriver slot. These are the small bulbs that back light the digital information. The easiest way to see if that is your problem is to swap one of the working bulbs for the blank display. The back photo shows the Beige bulb in the center of the cluster.
