TM 5-3805-261-23-1
ELECTRICAL SYSTEM TROUBLESHOOTING PROCEDURES - CONTINUED
0008 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
Test continuity of individual light
If multimeter indicates no reading, circuit
15. Individual Light Fails to
assembly. Connect multimeter to
does not have continuity. Replace light
Operate - Continued.
terminal at back of light.
assembly. If the problem still exists, go to
Test 5.
5.
Test continuity of wire assemblies
Repair or replace individual wire
between individual light and switch.
assembly as necessary. If the problem still
exists, go to Test 6.
6.
Test continuity of light switch.
If multimeter indicates no reading, circuit
does not have continuity. Replace light
switch (WP 0101 00).
1.
Check main circuit breaker (60A).
Reset circuit breaker. If the problem still
16. All Turn Signal Lights and
Indicators Fail to Operate.
exists, go to Test 2.
2.
Check turn signal fuse (10A), and
Replace fuse if blown (WP 0096 00). If
operator panel fuse (5A).
the problem still exists, go to Test 3.
3.
Test continuity of flasher unit.
If multimeter indicates no reading, circuit
Connect multimeter to bottom of
does not have continuity. Replace flasher
unit.
unit (WP 0094 00). If the problem still
exists, go to Test 4.
4.
Test continuity of turn signal switch.
If multimeter indicates no reading, circuit
does not have continuity. Replace turn
signal switch (WP 0073 00).
Test continuity of flasher unit. Connect
If multimeter indicates no reading, circuit
17. Turn Signal Lamps Fail to
Blink.
multimeter to bottom of unit.
does not have continuity. Replace flasher
unit (WP 0094 00).
1.
Check main circuit breaker (60A).
Reset circuit breaker. If the problem still
18. Both Floodlights Fail to
Operate.
exists, go to Test 2.
2.
Check blade lights fuse (15A) and
Replace fuse if blown (WP 0096 00). If
rear floodlights fuse (15A).
the problem still exists, go to Test 3.
3.
Test continuity of each floodlight
If multimeter indicates no reading, the
assembly. Connect one multimeter
circuit does not have continuity. Replace
lead to back of light housing and one
floodlight assembly (WP 0105 00 or WP
to ground.
Test 4.
4.
Test continuity of headlight switch.
If multimeter indicates no reading, circuit
Connect one multimeter lead to back
does not have continuity. Replace light
of switch and one lead to ground.
switch assembly (WP 0101 00).
1.
Check main circuit breaker (60A).
Reset circuit breaker. If the problem still
19. Blackout Drive Lights Fail to
Operate.
exists, go to Test 2.
2.
Check blackout drive lights circuit
Replace if defective. If the problem still
breaker.
exists, go to Test 3.
