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TM 9-2320-270-10
Troubleshooting – Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ELECTRICAL SYSTEM
ONE OR MORE LIGHT SYSTEMS WILL NOT WORK
Step 1. Check light switch (1) position.
Place light switch (1) in ON position.
Step 2. Check if circuit breaker (2) has tripped.
a. If circuit breaker (2) has tripped, push in to reset.
b. If circuit breaker (2) trips again, notify Organizational
Maintenance.
c. If circuit breaker (2) was not tripped, notify Organizational
Maintenance.
Step 3. If semitrailer lights are not working, check tractor-to-trailer electrical
cable (1) hook-up.
a.
b.
3-16
If tractor-to-trailer cable (3) is loose or inproperly connected,
reconnect it securely.
If tractor-to-trailer cable (3) is secure and semitrailer lights
are not working, see troubleshooting in applicable semi-
trailer TM.
TA220913
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