(1) Remove two screws and lens cover from LH
cab marker light base.
(2) Remove LH marker light lamp from socket.
(3) Set multimeter to ohms.
(4) Check continuity through LH marker light
lamp and note reading on multimeter.
(5) If continuity is not present, replace LH
marker light lamp (para 7-31).
(1) Position main light switch to SER DRIVE
(2) If LH door marker light lamp does not
illuminate, go to step 4 of this fault.
(3) Position main light switch to OFF (TM 9-
Change 1 2-542.1