TM 9-2330-275-14&P
Table 4-1. Unit Troubleshooting Chart (con’t).
ELECTRICAL SYSTEM (con’t).
Continued from step A
5. SERVICE STOPLIGHTS AND TAILLIGHTS
INOPERATIVE (con’t).
B. Turn towing vehicle master switch OFF. Dis-
connect IVC from distribution box. Disconnect
wires 489-21 from both composite taillight as-
semblies. Place multimeter red lead in pin E of
distribution box connector. Place multimeter
black lead in chassis wiring harness socket for
both wires 489-21. Check for continuity.
IS CONTINUITY PRESENT?
wiring harness (para 4-25).
C. Disconnect wire 481-22 from left composite
taillight assembly and wire 480-22 from right
composite taillight assembly. Engage service
brake on towing vehicle. Place multimeter red
lead on pin B of distribution box connector.
Place multimeter black lead on wire 461-22
socket at left taillight disconnect. Check wire
481-22 for continuity. Repeat procedure on pin
J and wire 480-22 (right taillight).
IS CONTINUITY PRESENT?
harness (para 4-25).
4-20
