TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
5.
HAND-HELD SPOTLIGHT DOES NOT OPERATE (MODEL A ONLY) (continued).
CONTINUITY TEST
CAUTION
Electrical power must be shut off
from circuit before continuity can
be checked. Failure to comply
CAB CONTROL BOX
with this caution may result in dam-
CONNECTOR (J2)
age to test equipment or electrical
SUPPLY
system.
HARNESS
CONNECTOR
(1) Disconnect cab control box connector
(J1)
(P2) from cab control box.
(2) Set multimeter to ohms position.
NOTE
A reading of infinity indicates an
open circuit.
(3) Connect multimeter leads to each end
of wire, and check multimeter for
continuity. Check between cab
control box connector (J2), position
E, and supply harness connector (J1),
CAB CONTROL BOX
position G.
CONNECTOR (P2)
NOTE
Any reading besides infinity indi-
cates a grounded wire.
(4) Remove multimeter lead from one end
of wire and connect to chassis
ground.
Change 1
4-107
