TM 5-6115-593-12
TO 35C2-3-463-1
Table 4-3. Organizational Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. ENGINE SHUTS DOWN SOON AFTER STARTING-continued
Step 3.
Remove short from OP1, and use multimeter to check for presence of 24V DC across oil pressure switch
OP1 while engine is being cranked.
If 24V DC is present, check lube oil level. If level is low, add oil as required, and proceed to next
step. If voltage across OP1 reads zero at any time during test, proceed to next step.
Step 4.
Place temporary short across oil pressure switch OP1 and use multimeter to check for presence of 24V DC
across oil temperature switch OT1 (see figure 4-40)
NOTE
To check this component refer to FO-3 to determine where these points are electrically accessible
to jumper. If 24V DC is present, switch OT1 may be defective and must be referred to next higher
maintenance. If voltage is absent, proceed to next step.
Step 5.
Use a multimeter to check for presence of 24V DC across coolant temperature switch WT1 (see figure 4-
40).
NOTE
To check this component refer to FO-3 to determine where these points are electrically accessible
to jumper.
If 24V DC is present, test coolant temperature switch and replace if defective (see paragraph 4-
82).
If 24V DC is absent, proceed to next step.
Step 6.
Use a multimeter to check for presence of 24V DC across contacts of low fuel shutdown relay K8 (part of
AC-DC control relay assembly, 18, figure 4-19).
If 24V DC is present, proceed to next step.
If voltage is absent, remove temporary short from OP1 and refer to paragraph 4-50 on fuel line
maintenance and proceed to Malfunction 2, Step 2.
4-24
