TM 9-2330-371-14&P
LIGHTING SYSTEM
The intervehicular receptacle on the nose of the semitrailer receives lighting power from the towing
vehicle. The power is sent through a single wiring harness to the clearance lights and taillights.
Clearance Service Lights There are clearance service lights at front, center, and rear of both sides.
They go on when either the towing vehicle clearance lights or the service lights are turned ON. They go
off automatically when the blackout lights are turned on.
Clearance Blackout Lights The clearance blackout lights are located at the front, center, and rear of
both sides. They go on only when the blackout light switch in towing vehicle is turned ON.
Tail, Turn, Stop, and Blackout Lights The tail, turn, stop, and blackout lights, located on left and
right rear of semitrailer, have four bulbs in each. One bulb functions as a taillight when the service
lights are turned on, and one bulb functions as both turn and stoplight. The third and fourth bulbs
function as blackout light and blackout stoplight when the blackout light switch is turned ON. The
blackout lights automatically turn off the tail, stop, turn, and clearance lights if both switches are on at
the same time.
TA224181