REAR SIDE MARKER LIGHTS AND REAR MARKER LIGHTS DO NOT OPERATE (S/N YB6122 075 AND UP). (Cont) -725550479

TM 9-2330-385-14

Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical

circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.

VOLTAGE TEST

(1) Remove rear junction box cover.

(2) Connect positive (+) multimeter lead

to rear junction box terminalwire 1012B.

(3) Connect negative (- ) multimeter lead

to a known good ground.

(4) While assistant turns ON ENGINE

switch and turns on lights, observe

multimeter (TM 9-2320-364-10)

(a) If 10 to 14 vdc are not present,

perform Steps (5) and (6) below,

and repair wire 1012B (see

schematic, Fig FO-1.1) or replace

trailer main wire harness (Para

4-30.1).

(b) If 10 to 14 vdc are present, wire

1012B is OK.

(5) Turn off lights.

(6) Turn OFF ENGINE switch.

(7) Install rear junction box cover