D91DE6 on BMW:si muistiin tallennettu vika (ISTA-vikakoodi, ei vakiomuotoinen OBD-II P-koodi).
Mitä se tarkoittaa: Missing 'status outer light, front electronics 1 right' message — receiver FEM/BDC, transmitter TMSL (right headlight driver). Effectively a loss of communication with the right front lighting module; common cause is a corroded connector, moisture or a failed headlight driver module.
