TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
10. NO TRANSIT LIGHT DOES NOT OPERATE PROPERLY (MODEL A ONLY)
(continued).
CONTINUITY TEST
CAUTION
Electrical power must be shut off
from circuit before continuity can
be checked. Failure to comply with
this caution may result in damage
to test equipment or electrical sys-
tem.
(1) Set multimeter to ohms position.
NOTE
A reading of infinity indicates an
WIRING REMOVED FOR CLARITY
open circuit.
(2) Connect multimeter to terminals at
each end of wire, and check
multimeter for continuity. Check
between main junction box connector
(P4), position N and terminal strip,
position 10. Next, check between
main junction box connector (P4),
MAIN CONTROL BOX
position L, and terminal strip position,
CONNECTOR (J4)
12. Last, check between main
junction box connector (P4), position
K, and terminal strip, position 11.
4-193
Change 1
