'98 gs400 gauges not working
 

Hello,
- I have a 1998 Lexus GS400 and the dash gauges have quit working (just the dial gauges)...ie temp, rpm, fuel and speedometer.
- I've checked the fuses that pertain to the dash gauges and they "appear" to be okay.
- Any suggestions before I have to take the car into Lexus for service.
*** The dash lights, trip meter and indicator lights all are working.