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TM-9-2350-261-20-1 Unit Maintenance Manual Volume 1 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download

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TM 9-2350-261-20-1 INSTRUMENT PANEL ILLUMINATION LIGHTS MALFUNCTION — Continued 0038 00 B2Y 1. Remove instrument panel for access (WP 0238 00). 2. Remove front main harness plug (1) from lighting control switch jack (2). 3. Remove front main harness circuit 40 plug (3) or (4) from failing instrument panel light (5) or (6). 4. Measure resistance between front main harness lighting control switch plug (1), pin B (7), and failing circuit 40 light plug (3) or (4). 5. Does multimeter read 0 ohms? B2YN 1. Install bulbs. 2. Repair front main harness circuit 40 (WP 0312 00). 3. Verify no faults found. B3Y 1. Install front main harness plug on lighting control switch jack. 2. Replace instrument panel light assembly (WP 0240 00). 3. Verify no faults found. 0038 00-5/6 blank