(1) While assistant turns ON ENGINE
switch and turns on lights, observe
rear trailer lights (TM 9-2320-364-10).
(a) If rear side marker lights, rear
marker lights, and taillights do not
operate, fault has not been
corrected. Perform Steps (2) and
(3) below and notify supervisor.
(b) If all rear side marker light, rear
marker lights, and taillights operate,
fault has been corrected.
(2) Turn off lights.
(3) Turn OFF ENGINE switch.