TAILLIGHT(S) DO NOT OPERATE. (Cont) -725550379

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) Disconnect 12 vdc (7 pin) cable from

front junction box connector MC16.

(2) Set multimeter select switch to

volts dc.

(3) Connect positive (+) multimeter lead

to pin F on trailer end connector.

(4) Connect negative (- ) multimeter lead

to terminal A on trailer end connector.

(5) 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 (6) and (7) below,

and replace 12 vdc cable.

(b) If 10 to 14 vdc are present, 12 vdc

cable is OK.

(6) Turn off lights.

(7) Turn OFF ENGINE switch.

(8) Connect 12 vdc cable to front junction

box connector MC16.

VOLTAGE TEST

(1) Loosen four captive screws and

remove front junction box cover.

(2) Connect positive (+) multimeter lead

to front junction box, terminal 1.

(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 replace connector MC16

(b) If 10 to 14 vdc are present,

connector MC16 is OK.

(5) Turn off lights.

(6) Turn OFF ENGINE switch.