To ressurect an old thread, I have the bulb lamp warning lot on only when I turn on the lights on my new to me W124 Cab. I had a license plate bulb out, traced it to a bad wire in the hinge of the trunk and thought that would do it.

The license plate lights are now on, and all the other lights seem to work, but I still get the lamp bulb warning when I turn on either running lights or headlights. What am I missing?
Regards,
Jerry