On the gauge panel circuit board, labeled SL50, (2001 CL-S), I have a bulb, Part #78181-SS0-003, which is burned out. What does this bulb do? There does not appear to be anything in front of the bulb which could be lighted. The bulb costs $8.62, and if it is not used, I don't want to replace it. The light is shown here: https://acurazine.com/forums/2g-tl-p.../#post16325316

 

In post #14 of the thread you linked above, member Win thought that 9th bulb was just for back-lighting

 

Thanks :-) for the reply. I really don't see how it can back-light anything. Oh well, I guess I'll spend the bucks. Happy New Year!