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
Test Step 12. Test for Shorted Main
Not Operate Continued
Cab Wiring Harness.
1. Disconnect connector W-C2
(WP 0012, Figure 224) from
connector H-C7
(WP 0012, Figure 225).
2. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), measure resistance
harness (WP 0505).
between connector W-C2
Proceed to Test Step 14.
terminal 26 (WP 0012, Figure 224)
No Continuity Proceed to step 3.
and all other terminals in
connector W-C2
(WP 0012, Figure 224).
3. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), measure resistance
harness (WP 0505).
between connector W-C2
Proceed to Test Step 14.
terminal 26 (WP 0012, Figure 224)
No Continuity Proceed to step 4.
and ground.
4. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), measure resistance
harness (WP 0505).
between connector W-C1
Proceed to Test Step 14.
terminal 29 (WP 0012, Figure 99)
No Continuity Proceed to Test
and all other terminals in
Step 13.
connector W-C1 (WP 0012,
Figure 99).
Test Step 13. Test for Shorted
Headliner Wiring Harness.
1. Using digital multimeter
Continuity Replace headliner wiring
(WP 0540), test for continuity
harness (WP 0497).
between connector H-C7
Proceed to Test Step 14.
terminal 26 (WP 0012, Figure 225)
No Continuity Proceed to step 2.
and all other terminals in
connector H-C7 (WP 0012,
Figure 225).
2. Using digital multimeter
Continuity Replace headliner wiring
(WP 0540), test for continuity
harness (WP 0497).
between connector H-C7
Proceed to Test Step 14.
terminal 26 (WP 0012, Figure 225)
No Continuity Replace military light
and ground.
switch (WP 0517).
Proceed to Test Step 14.
0140-11