TM 9-2320-273-20
Table 5-14. Miscellaneous Electrical Circuit Troubleshooting (Continued).
INSTRUCTION
INDICATION
YES
NO
REMARKS
Figure 5-40. Dome Lamp, Work Lamps, and Cigar Lighter Circuits.
4
WORK LAMPS INOPERATIVE (FIXED, M916 AND M920 ONLY).
1
Replace bulb.
Lamp lights.
Go to
Step 2.
2
Check wiring between
12 volts dc nominal.
Replace
Go to
lamps and switch.
switch
Step 3.
Check for voltage at
(para 5-62A).
terminal on switch.
3
Troubleshoot
wiring.
5
WORK LAMPS INOPERATIVE (PORTABLE RECEPTACLES).
1
Replace bulb.
Lamp lights.
Go to
Step 2.
2
Check wiring between
12 volts dc nominal.
Replace
Go to
lamps and switch.
switch
Step 3.
Check for voltage at
(para 5-62A).
terminal on switch.
3
Troubleshoot wiring.
6
CIGAR LIGHTER INOPERATIVE.
1
Replace the lighter
Lighter works.
Go to
element.
Step 2.
2
Check for voltage at
12 volts dc nominal.
Replace
Go to
lighter receptacle,
receptacle
Step 3.
using a multimeter.
(para 5-60A).
3
Troubleshoot wiring.
TA 074725
5 - 62
