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Table 1. 1430 Scraper System Air Pressure Diagnostic Codes Continued.
PILOT AIR PRESSURE SENSOR DIAGNOSTIC CODES

Field Maintenance Manual For Military 621G Scraper -2 Page Navigation
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TM 5-3805-296-23-2
0085
Table 1. 1430 Scraper System Air Pressure Diagnostic Codes Continued.
085
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
4. Using digital multimeter
1430-04 Scraper Air
Continuity Replace main cab wiring
(WP 0540), test for continuity
Pressure Sensor Voltage
harness (WP 0505).
between connector W-C12
Below Normal Continued
Proceed to Test Step 7.
terminal 61 (WP 0012, Figure 88)
No Continuity Proceed to step 5.
and all other terminals in
connector W-C12
(WP 0012, Figure 88).
5. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), test for continuity
harness (WP 0505).
between connector W-C12
Proceed to Test Step 7.
terminal 61 (WP 0012, Figure 88)
No Continuity Proceed to step 6.
and all terminals in connector
W-C13 (WP 0012, Figure 89).
6. Using digital multimeter
Continuity Replace main cab wiring
(WP 0540), test for continuity
harness (WP 0505).
between connector W-C12
Proceed to Test Step 7.
terminal 61 (WP 0012, Figure 88)
No Continuity Replace transmission/
and ground.
chassis ECM (WP 0495).
Proceed to Test Step 7.
Test Step 7. Verify Malfunction is
Resolved.
1. Ensure all harness connectors are
connected.
2. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
3. At MSD, check for active
1430-4 Scraper Air Pressure Sensor
diagnostic codes (WP 0008).
Voltage Below Normal Becomes
Inactive Proceed to step 4.
1430-4 Scraper Air Pressure Sensor
Voltage Below Normal Remains
Active Repeat troubleshooting from
the beginning.
4. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
5. If removed, install splash shield
(Figure 4, Item 4), four bushings
(Figure 4, Item 3), washers
(Figure 4, Item 2), and bolts
(Figure 4, Item 1) on machine.
6. If lowered, install left frame access
plate (WP 0376).
7. Troubleshooting complete.
END OF WORK PACKAGE
0085-17/(18 blank)


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