TM 9-2330-246-14
Table 4-2. Organizational Troubleshooting (Con't).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
DIRECTIONAL SIGNALS INOPERATIVE..
Check for defective flasher or switch in towing vehicle.
Step 1.
Replace defective part. Refer to towing vehicle technical manual.
Step 2.
Check to see if lamp is defective.
Replace lamp (para 4-31 or 4-32).
Step 3.
Check for dirty or corroded lamp sockets or contacts.
Clean socket and contacts.
Step 4.
Check light assembly.
Replace light assembly (para 4-31 or 4-32).
ALL 110-VOLT LAMPS FAIL TO LIGHT.
5.
Step 1.
Check to see if current is available from power source.
Check power source for failure.
Check 110-volt fuse box for defective fuses.
Step 2.
Replace fuses (para 4-17).
6.
ONE OR MORE 11O-VOLT LAMPS (BUT NOT ALL) FAIL TO LIGHT.
Check to see if lamp is defective.
Step 1.
Replace lamp (para 4-35).
Check for dirty or corroded lamp socket or contacts.
Step 2.
Remove lamp and clean contacts.
Check for broken wire or loose connections.
Step 3.
Tighten, repair, or replace wire.
Check for defective light assembly.
Step 4.
Replace light assembly (para 4-35).
7.
ONE OR MORE FLUORESCENT LAMPS FAIL TO LIGHT.
Check to see if lamp is defective.
Step 1.
Replace lamp (para 4-36).
4-10
