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
Test Step 2. Test Voltage to Military
All Lights, Horn, and Backup
Light Switch.
Alarm Fail To Operate
1. Turn battery disconnect switch to
Continued
OFF position (TM 5-3805-296-10).
2. Disconnect connector H-C9
(WP 0012, Figure 242) from
military light switch
(WP 0012, Figure 241).
3. Turn battery disconnect switch to
ON position (TM 5-3805-296-10).
Wait approximately 30 seconds
before proceeding.
4. Using digital multimeter
Voltage 18 to 26 V Proceed to Test
(WP 0540), test for voltage
Step 3.
between connector H-C9
Voltage Less Than 18 V Proceed to
terminal F (WP 0012, Figure 242)
Test Step 27.
and ground.
Test Step 3. Test for Open Military
Light Switch.
1. Turn battery disconnect switch to
OFF position (TM 5-3805-296-10).
2. Turn mode switch on military light
switch to SER. DRIVE position
(TM 5-3805-296-10).
3. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to step 4.
between military light switch
Resistance Greater Than 5.0 Ohms
connector terminal F and
Replace military light switch (WP
terminal J (WP 0012, Figure 241).
0517).
Proceed to Test Step 43.
4. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to step 5.
between military light switch
Resistance Greater Than 5.0 Ohms
connector terminal F and
Replace military light switch (WP
terminal H (WP 0012, Figure 241).
0517).
Proceed to Test Step 43.
5. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 4.
between military light switch
Resistance Greater Than 5.0 Ohms
connector terminal F and
Replace military light switch (WP
terminal A (WP 0012, Figure 241).
0517).
Proceed to Test Step 43.
Test Step 4. Test for Shorted Relay.
1. Turn mode switch on military light
switch to OFF position
(TM 5-3805-296-10).
0141-3
