TM 55-1730-229-12
AG 320A0-OMM-000
TO 35C2-3-473-1
TM 1730-12/1
Table 4-2.
Organizational Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
42.
(continued)
Check continuity
If no continuity,
replace wire no.
From
To
J8-A
E17B20
3K1 socket X1
E38B20N
J8-B
3K1 socket X2
P8-A
E17A20
P4-S
E35C20N
P8-B
DC ground stud
a. If no continuity, replace indicated wire.
b.
If all continuity checks good, replace ECU (paragraph 4-31).
c. Perform operational check.
Step 10.
Measure voltage (26 vac nominal) between 3K1 relay socket pins A1
and B1, between B1 and C1, and between A1 and C1 (figure FO-5).
Shut engine down, disconnect battery, and install relay.
a. If voltages were normal, go to step 12.
If voltages were not present, do step 11.
b.
Step 11.
Disconnect main harness connector P8 from lower tray connector J8.
Open engine access door and disconnect harness connector P13 from
generator connector J1 (5, figure 4-39). Check for continuity
between the following points (see FO-5):
If no continuity,
Check continuity
replace wire no.
To
From
P4A20
P13-E
P8-G
P5A20
P8-E
P13-H
P6A20
P13-J
P8-C
If no continuity, replace indicated wire no., and perform
a.
operational check.
If all continuity checks good, the generator is defective.
b.
Notify maintenance supervisor.
4-67
