TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-1 BLACKOUT MARKER LIGHT(S) DON’T WORK—Continued 0034 00 CY 1. Turn MASTER SWITCH OFF. 2. Remove instrument panel for access (WP 0295 00). 3. Remove harness 12349881 plug (2) from LIGHTING CONTROL switch jack (1). 4. Measure resistance between LIGHTING CONTROL switch jack (2), pins F (3) and E (4). 5. Does multimeter read 0 ohms? YES NO CYN 1. Replace LIGHTING CONTROL switch (WP 0283 00). 2. Verify no faults found. C2Y 1. Faulty harness 12340991 circuit 20/24. Beyond unit maintenance repair. 2. Notify supervisor. 0034 00-5/6 blank