Usually it can be figured out by looking carefully at the bulb/lens/filament.
But without that check the actual bulb wiring connector.
Is it heat damaged?
Are the terminals good and tight with no discolouration?
But back to my original point,
Is there any colour on the lens
Or is the filament broken off inside?
Careful observation needed here!
Posted on Tuesday 14th of November 2017Don't understand this? Ask a question