OPERATOR TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ELECTRICAL SYSTEM - 24-VOLT
1. ALL LIGHTS DO NOT WORK
Turn on truck tractor lights and check their operation. See Truck Tractor
Step 1.
Operator's Manual.
If truck tractor lights do not work, notify Organizational Maintenance.
Check tractor-to-semitrailer electrical cable for proper connection.
Step 2.
Check truck tractor, semitrailer, and cable connectors for bent and broken pins
Step 3.
and dirty and corroded pins and sockets.
a. If pins or sockets are dirty or corroded, clean them (page 3-8).
b. If pins are broken or there is any evidence of damage, notify
Organizational Maintenance.
c. If all lights still do not work, notify Organizational Maintenance.
2. ONE OR MORE, BUT NOT ALL, LIGHTS WILL NOT WORK
Turn on truck tractor lights and check their operation. See Truck Tractor
Step 1.
Operator's Manual.
If any truck tractor lights do not work, notify Organizational
Maintenance.
Check tractor-to-semitrailer electrical cable for proper connection.
Step 2.
Check semitrailer connector receptacle for bent, broken, dirty, or corroded
Step 3.
pins and sockets.
a. If pins or sockets are dirty or corroded, clean them (page 3-8).
b. If pins are broken or there is any evidence of damage, notify
Organizational Maintenance.
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