TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
8.
OIL TEMPERATURE LIGHT DOES NOT OPERATE PROPERLY (MODEL A ONLY)
(continued).
MAIN JUNCTION BOX
CONNECTOR (J4)
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 system.
(1) Disconnect main junction box
connector (P4) from junction box.
(2) Set multimeter to ohms position.
NOTE
A reading of infinity indicates an
open circuit.
MAIN JUNCTION BOX
CONNECTOR (P4)
(3) Connect multimeter to leads at each
end of harness, and check multi-
meter for continuity. Check (24-pin)
linking harness, positions N and P.
NOTE
CAB CONTROL BOX
Any reading besides infinity indi-
CONNECTOR (J2)
cates a grounded wire.
(4) Remove multimeter lead from one
end of wire and connect to chassis
ground.
CAB CONTROL BOX
CONNECTOR (P2)
4-141
Change 1
