TM 5-3805-296-23-2
0140
Table 1. Blackout Headlamp Does Not Operate Continued.
0140
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Blackout Headlamp Does
3. Disconnect connector H-C9
Not Operate Continued
(WP 0012, Figure 242) from
military light switch
(WP 0012, Figure 241).
4. Turn mode switch on military light
switch to B.O. DRIVE position
(TM 5-3805-296-10).
5. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to step 6.
between military light switch
Resistance Greater Than 5.0 Ohms
terminal D and terminal F
Replace military light switch (WP 0517).
(WP 0012, Figure 241).
Proceed to Test Step 14.
6. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 10.
between military light switch
Resistance Greater Than 5.0 Ohms
terminal E and terminal F
Replace military light switch (WP 0517).
(WP 0012, Figure 241).
Proceed to Test Step 14.
Test Step 10. Test for Shorted
Blackout Headlamp Wiring Harness.
1. Disconnect connector T-C1
(WP 0012, Figure 196) from
connector J-C7
(WP 0012, Figure 197).
2. Using digital multimeter
Continuity Replace blackout
(WP 0540), test for continuity
headlamp wiring harness (WP 0380).
between connector T-C1
Proceed to Test Step 14.
terminal 1 and terminal 2
No Continuity Proceed to Test
(WP 0012, Figure 196).
Step 11.
Test Step 11. Test for Shorted
Chassis Wiring Harness.
1. Disconnect connector J-C8
(WP 0012, Figure 100) from
connector W-C1
(WP 0012, Figure 99).
2. Using digital multimeter
Continuity Replace chassis wiring
(WP 0540), test for continuity
harness (WP 0305).
between connector J-C8 terminal
Proceed to Test Step 14.
29 (WP 0012, Figure 100) and all
No Continuity Proceed to step 3.
other terminals in connector J-C8
(WP 0012, Figure 100).
3. Using digital multimeter
Continuity Replace chassis wiring
(WP 0540), test for continuity
harness (WP 0305).
between connector J-C8
Proceed to Test Step 14.
terminal 29 (WP 0012, Figure 100)
No Continuity Proceed to Test
and ground.
Step 12.
0140-10
