TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0014 00 0014 00-12 INDICATORS, GAUGES, AND WARNING SYSTEM TROUBLESHOOTING (Contd) Table 1. Indicator, Gauges, and Warning System Troubleshooting (Contd). 6. IN-TANK FUEL PUMP INOPERATIVE (Contd) Test 3. Test in-tank fuel pump fuse. 1. Turn power accessory switch to OFF position. 2. Remove fuse holder (WP 0059 00). 3. With multimeter set to RX 1 scale, check continuity of fuse. Attach negative lead to one side of fuse. Touch positive lead to other side of fuse. Test 4. Test fuel pressure delivered by in-tank fuel pump with engine stopped. Go to WP 0006 00, Table 1, malfunction 2, step 5. Test 5. Test continuity of lead 654. 1. Disconnect negative battery cable (WP 0126 00). 2. Disconnect lead 74 from start switch and disconnect lead 654 from fuel pump. 3. Set multimeter to RX 1 scale. 4. Connect negative and positive leads of multimeter between lead 74 and lead 654. 1. If continuity is not found, replace fuse (WP 0059 00). 2. If continuity is present in fuse, go to test 4. 1. If continuity is not present, repair or replace leads 74 and 654. 2. If continuity is present, reconnect leads 74 and 654 and recheck fuel pump for proper operation. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION