E36 Interior lights turn on periodically?

Technician

Well-known member
hi,
my interior lights on my E36 ///M3 2 door will turn on during bumpy road or heavy breaking.

i pulled off the top light to check no wires were touching the back of the circuit board, but nothing, i even added some insulation to make sure.
anyone else experience this?
i read up it could be a faulty door switch, but its inside the actual lock, how do i get to it? how else could i check this out?
could it be a faulty boot switch?
or could it be the actual switch on the roof that is faulty?

any help please?
 
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