97 Altima instrument cluster lights
 

i have a 97 Altima GXE 109,000 Automatic. I left the lights on during the day a few days ago for 3 hours. When Iturned the lights on that evening the instrument cluster lights along with the illumination lights in the HVAC control assembly will not turn on. I checked all the fuses with negative results. The warning lights in the the cluster light up andare functioning properly. I think it might be the accessory relay. Any opinoins and advice would be appreciated.