Change 1 2-733
(1) Set multimeter to ohms.
(2) Connect positive (+) probe of multimeter
to terminal lug TL18 (LH) or TL21 (RH).
(3) Connect negative (-) probe of multimeter
to blackout stoplight lamp socket and
note reading on multimeter.
(4) If continuity is not present, replace
composite taillight assembly (para 7-32).
(5) If continuity is present, replace lamp
(6) Install lamp in socket.
(7) Install preformed packing and cover on
housing with six screws.