91 318i, four door sedan. I am trying to figure out what is wrong with my dome lights. They stay on constantly, unless the dome lights are switched to "off".
I figured it was ever a door switch stuck in the open position (but I'm not sure if that is even possible??). Tonight I went hunting for the dome light control module, but I'm not sure if my car came with one?
I removed the driver side kick panel and pulled the speaker out. There is nothing in there except a bunch of unused plugs in the wiring harness but below the speaker I found this black box.
What is it?

Is this the dome light control module or something entirely different?
If that is not the dome light control module, I do not think my car has one. And in that case, why are my dome lights staying on constantly? And yes I have tried both positions on the switch.
ETA I googled the part number and it appears to be the central locking system control unit.
Still no idea on the dome lights since I don't appear to have the dome light control module.
I figured it was ever a door switch stuck in the open position (but I'm not sure if that is even possible??). Tonight I went hunting for the dome light control module, but I'm not sure if my car came with one?
I removed the driver side kick panel and pulled the speaker out. There is nothing in there except a bunch of unused plugs in the wiring harness but below the speaker I found this black box.
What is it?

Is this the dome light control module or something entirely different?
If that is not the dome light control module, I do not think my car has one. And in that case, why are my dome lights staying on constantly? And yes I have tried both positions on the switch.
ETA I googled the part number and it appears to be the central locking system control unit.
Still no idea on the dome lights since I don't appear to have the dome light control module.
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