TM-9-2350-261-20-1 Unit Maintenance Manual Volume 1 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download
Page 271 of 1236
TM 9-2350-261-20-1 DOME LIGHTS MALFUNCTION (M577A2 ONLY) — Continued 0042 00 4Y 1. Turn MASTER SWITCH to OFF (see your -10). 2. Install circuit 38E and 38A plugs on rear dome light switch. 3. Remove eight nuts (1), washers (2), and screws (3) from master switch panel (4). Pull panel away from distribution box. 4. Remove circuits 10 (5) and 38A (6) plugs from circuit breaker (7) and front dome light switch (8). 5. Install a jumper wire between circuit 10 and 38A plugs. 6. Turn MASTER SWITCH to ON (see your -10). 7. Operate rear dome light switch. 8. Do blackout dome lights still malfunction? 4YN GO TO EY (PAGE 0042 00-5) 5Y 1. Remove jumper wire from circuits 10 and 38A plugs. 2. Measure voltage at circuit 10 plug. 3. Does multimeter read 17 volts or more? 5YN 1. Turn MASTER SWITCH to OFF (see your -10). 2. Repair/replace wiring harness 10917788 (WP 0312 00). 3. Verify no faults found. 6Y 1. Turn MASTER SWITCH to OFF (see your -10). 2. Repair wiring harness circuit 38A (WP 0312 00). 3. Verify no faults found. 0042 00-3