TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
19. ENGINE STARTS BUT DOES NOT STAY RUNNING - CONTINUED.
WARNING
Although KEY SWITCH must be on and battery ground cable connected to test electrical
circuit voltage, turn off KEY SWITCH and disconnect battery ground cable before doing
resistance tests or replacing parts. This will keep you from getting shocked and prevent
damage to parts and equipment.
NOTE
Scrape painted surfaces to bare metal before connecting test leads to ensure correct
multimeter readings.
When performing following steps, KEY SWITCH must be in off position.
Step 7.
Using multimeter, set to ohms scale and adjust to 0 ohms. Connect red test lead to POS 1 terminal (1) on
automatic override module (2) and black test lead to C terminal (3) on water temperature switch (4).
Check for 0 ohms on multimeter. Disconnect test leads.
a.
If multimeter reads no continuity, 19A wire (5) must be replaced. Notify Direct
Support Maintenance.
b.
If multimeter reads O ohms, go to step 10.
Step 8.
Using multimeter, set to ohms scale and adjust to 0 ohms. Connect red test lead to NC terminal (6) on
water temperature switch (4) and black test lead to C terminal (7) on oil pressure switch (8). Check for 0
ohms on multimeter. Disconnect test leads.
If multimeter reads no continuity, 19C wire (9) must be replaced. Notify Direct Support
Maintenance.
Step 9.
Using multimeter, set to ohms scale and adjust to 0 ohms. Connect red test lead to NC terminal (10) on
oil pressure switch (8) and black test lead to terminal stud (11) on fuel solenoid (12). Check for 0 ohms on
multimeter. Disconnect test leads.
If multimeter reads no continuity, 19D wire (13) must be replaced.
Notify Direct Support Maintenance.
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