TM
55-1730-229-12
AC
320A0-OMM-000
TO
35C2-3-473-1
TM
1730-12/1
Table 4-2.
Organizational Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
GTE CONTROL SHORT INDICATOR LIT - ENGINE SHUT DOWN.
30.
Step 1.
If engine will not motor, disconnect battery and lower control panel.
Disconnect main harness connector P4 from ECU and measure resistance
from pin J of harness connector P4 to ground (figure FO-3 sheet 1).
a. If resistance is less than 10 ohms, starter contactor K4 or
wire E16A20 is shorted. Replace as necessary.
b. If resistance is 10 ohms or more, replace ECU (paragraph
c. Perform operational check.
Step 2.
If no light off above 10% and no increase in EGT, turn ENGINE CONTROL
switch to STOP. Set MASTER SWITCH off and disconnect engine harness
connector P7 from ignition unit (paragraph 4-83). Restart engine.
a. If engine now motors beyond 10%, test ignition unit
(malfunction 96).
b. If CONTROL SHORT indicator still illuminates at 10% rpm, do
step 3.
Step 3.
Set MASTER SWITCH off and disconnect engine harness connector P4 from
fuel shutoff solenoid (paragraph 4-70). Restart engine.
a. If engine now motors beyond 10% rpm, test fuel shutdown
solenoid (malfunction 98). If not, do step b.
b.
Disconnect leads from hourmeter (8, figure 4-70). Restart
engine. If engine now motors normally, replace hourmeter.
If not, do step c.
c. If CONTROL SHORT indicator still illuminates at 10% rpm, dis-
connect battery and check engine harness wiring to ignition
unit, hourmeter, and fuel shutdown solenoid. If wiring is
not shorted to ground, replace ECU (paragraph 4-31).
d. Perform operational check.
