My idiot light on the dash won't stop telling me that I have a bad light bulb somewhere.

However, I have checked all the bulbs inside and out and even replaced a few like the rear seat overhead light and the glove box light.

Checked the rear license lights, the tail lights, the brake lights.........

What else is on that darn test circuit?

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1999 C230 Kompressor
1998 C280 Son's car
1999 C280 Totaled by other Son