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Table 1. Left Front Turn Signal Does Not Operate.
Table 1. Left Front Turn Signal Does Not Operate Continued.

Field Maintenance Manual For Military 621G Scraper -2 Page Navigation
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TM 5-3805-296-23-2
0144
Table 1. Left Front Turn Signal Does Not Operate Continued.
0144
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Left Front Turn Signal Does
Test Step 3. Test Hood Wiring
Not Operate Continued
Harness for High Resistance or
Open.
1. Turn left turn signal OFF
(TM 5-3805-296-10).
2. Turn mode switch on military light
switch to OFF position
(TM 5-3805-296-10).
3. Turn battery disconnect switch to
OFF position (TM 5-3805-296-10).
4. Disconnect connector L-C2
(WP 0012, Figure 192) f
rom connector J-C1
(WP 0012, Figure 191).
5. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to step 6.
between connector L-C2
Resistance Greater Than 5.0 Ohms
terminal 4 (WP 0012, Figure 192)
Replace hood wiring harness
and connector L-C4 terminal A
(WP 0389).
(WP 0012, Figure 199).
Proceed to Test Step 13.
6. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 4.
between connector L-C2
Resistance Greater Than 5.0 Ohms
terminal 7 (WP 0012, Figure 192)
Replace hood wiring harness
and connector L-C4 terminal B
(WP 0389).
(WP 0012, Figure 199).
Proceed to Test Step 13.
Test Step 4. Test Chassis Wiring
Harness for High Resistance or
Open.
1. Disconnect connector J-C8
(WP 0012, Figure 100) f
rom connector W-C1
(WP 0012, Figure 99).
2. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to step 3.
between connector J-C8
Resistance Greater Than 5.0 Ohms
terminal 60 (WP 0012, Figure 100)
Replace chassis wiring harness
and connector J-C1 terminal 4
(WP 0305).
(WP 0012, Figure 191).
Proceed to Test Step 13.
3. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0540), measure resistance
Proceed to Test Step 5.
between connector J-C1 terminal 7
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 191) and
Replace chassis wiring harness
ground.
(WP 0305).
Proceed to Test Step 13.
0144-3


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