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Table 1. Front and Rear Turn Signals Do Not Operate.
Table 1. Front and Rear Turn Signals Do Not Operate Continued.

Field Maintenance Manual For Military 621G Scraper -2 Page Navigation
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TM 5-3805-296-23-2
0150
Table 1. Front and Rear Turn Signals Do Not Operate Continued.
0150
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Other Lights, Horn, and Backup
Front and Rear Turn Signals
5. Turn right turn signal ON and
Alarm Operate Proceed to Test
Do Not Operate Continued
verify if other lights, horn, and
Step 2.
backup alarm operate
Other Lights, Horn, and Backup
(TM 5-3805-296-10).
Alarm Do Not Operate Turn turn
signal switch to OFF position
(TM 5-3805-296-10).
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 9.
Test Step 2. Verify Condition.
Operate and observe all four turn
All Signals Operate in Both Positions
signals with military light switch in SER.
Troubleshooting complete.
DRIVE position and in
All Signals Operate Only in SER.
STOP LIGHT position
DRIVE Position Replace military light
(TM 5-3805-296-10).
switch (WP 0517).
Proceed to Test Step 9.
All Signals Operate Only in STOP
LIGHT Position Replace military light
switch (WP 0517).
Proceed to Test Step 9.
Only One, Two, Or Three Signals
Operate Turn turn signal switch to
OFF position (TM 5-3805-296-10).
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 appropriate diagnostic
procedure (WP 0144), (WP 0145),
(WP 0146), (WP 0147), (WP 0148), or
(WP 0149).
No Signals Operate in Either Position
Proceed to Test Step 3.
Test Step 3. Test Voltage to Turn
Signal Switch.
1. Turn turn signal switch to OFF
position (TM 5-3805-296-10).
2. Turn mode switch on military light
switch to OFF position
(TM 5-3805-296-10).
0150-3


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