Electrical problem
2002 Other Alfa Romeo Models 4 cyl Front Wheel Drive Manual 31000 miles
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the rear side light remains slightly on even when the light switch is on the off position, all lights are fully functioning.
the warning light on the dash tells me there is a fault, when i turn the ignition on to start the warning light goes off.

sounds likr you have a bad earth/ground wire on that light cluster ??