TM 5-3805-296-23-2
0141
Table 1. All Lights, Horn, and Backup Alarm Fail To Operate Continued.
0141
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
All Lights, Horn, and Backup
6. Using digital multimeter
Resistance 5.0 Ohms or Less Turn
Alarm Fail To Operate
(WP 0540), measure resistance
mode switch on military light switch to
Continued
between military light switch
OFF position (TM 5-3805-296-10).
connector terminal F and
Proceed to Test Step 42.
terminal D (WP 0012, Figure 241).
Resistance Greater Than 5.0 Ohms
Replace military light switch (WP
0517).
Proceed to Test Step 43.
Test Step 42. Test for Shorted A654,
Circuit.
1. Connect connector H-C9
(WP 0012, Figure 242) to military
light switch (WP 0012,
Figure 241).
2. Turn battery disconnect switch to
ON position (TM 5-3805-296-10).
3. Turn mode switch on military light
switch to B.O. MARKER position
(TM 5-3805-296-10).
4. Observe BO tail lights.
BO Tail Lights Operate Turn mode
switch on military light switch to OFF
position (TM 5-3805-296-10).
Perform diagnostic procedure Blackout
Headlamp Does Not Operate
(WP 0140) to diagnose shorted circuit.
Proceed to Test Step 43.
BO Tail Lights Do Not Operate Turn
mode switch on military light switch to
OFF position (TM 5-3805-296-10).
Perform diagnostic procedure One or
Both Blackout Tail Lights Do Not
Operate (WP 0136) to diagnose
shorted circuit.
Proceed to Test Step 43.
Test Step 43. Verify Malfunction is
Resolved.
1. Turn mode switch on military light
switch to OFF position
(TM 5-3805-296-10).
2. Turn battery disconnect switch to
OFF position (TM 5-3805-296-10).
3. Ensure all harness connectors are
connected.
0141-37