TM 5-3805-298-23-1
0123
Table 1. Blackout Light Does Not Operate.
0123
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
Blackout Light Does Not
Operate
Always inspect wiring harness connectors that are involved in the circuit.
Poor connections can often be the cause of a problem in an electrical
circuit. Verify that all connections in the circuit are clean and secure and
that all connections are in good condition. If a problem with the
connection is found, correct the problem and verify that this malfunction
or diagnostic code is active before performing this procedure.
Perform open or short-circuit test at each wiring harness connection to
identify the correct wiring harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
Test Step 1. Test for Voltage at
Blackout Light.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Disconnect connector LE-C22
(WP 0012, Figure 143) from
blackout light.
3. Turn battery disconnect switch to
ON position (TM 5-3805-298-10).
4. Turn military light switch to B.O.
Drive position (TM 5-3805-298-
10).
5. Using digital multimeter
Voltage 18 to 24 V Replace blackout
(WP 0174), test for voltage
light (WP 0275).
between connector LE-C22
Proceed to Test Step 12.
(WP 0012, Figure 143) terminal 1
Voltage Less Than 18 V Proceed to
and ground.
Test Step 2.
Test Step 2. Test for Open Lighting
Fuse.
1. Turn battery disconnect switch to
OFF position (TM 5-3805-298-10).
2. Remove left engine access panel
(WP 0350).
3. Remove lighting fuse from fuse
module 1 (WP 0012, Figure 44,
Item 8).