TM 5-3805-296-23-2
0143
Table 1. One or Both Headlights Fail To Operate in Low Beam.
0143
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
One or Both Headlights Fail
To Operate in Low Beam
Always inspect 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 harness connection to identify
the correct harness to replace.
Tag all wiring harnesses to aid in installation.
Test Step 1. Verify Condition.
Were you directed here from All Lights,
No Proceed to Test Step 2.
Horn, and Backup Alarm Fail To
Yes Proceed to Test Step 14.
Operate (WP 0141).
Test Step 2. Verify if Other
Malfunctions are Present.
CAUTION
Verify brights switch is NOT in high-beam position before proceeding
(TM 5-3805-296-10). Failure to follow this caution may result in
inaccurate diagnosis.
1. Turn battery disconnect switch to
ON position (TM 5-3805-296-10).
2. Turn mode switch on military light
switch to SER. DRIVE position
(TM 5-3805-296-10).
3. Verify if other lights, horn, and
Other Lights, Horn, and Backup
backup alarm operate
Alarm Operate Proceed to Test
(TM 5-3805-296-10).
Step 3.
Other Lights, Horn, and Backup
Alarm Do Not Operate Turn mode
switch on military light switch to OFF
position (TM 5-3805-296-10).
Turn battery disconnect switch to OFF
position (TM 5-3805-296-10).
Perform All Lights, Horn, and Backup
Alarm Fail To Operate (WP 0141).
Proceed to Test Step 17.
