I presume you mean the third brake light on a car?.
If so, there's no technical reason for having a capacitor, and assuming it was short? - then removing it would restore operation.
I've repaired a number of third brake lights, simply replacing the faulty SM LED's, which are available at low cost, and look identical to the originals (I sourced them from RS Components).
Automotive parts often use in-house numbers, so are of no use, and SM numbering in general is completely useless and it's common you can't identify items.
Again, assuming it is a third brakelight?, draw the entire circuit out - there's hardly anything in it, and it will immediately become apparently what it is.
More likely a diode. Perhaps a PZU3.6, https://www.s-manuals.com/pdf/datasheet/p/z/pzuxb_series_nxp.pdf