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 B3Y 1. Remove harness 12268797 circuit 24 plug (1) from harness 12349881 circuit 24 jack (2). 2. Measure voltage between harness 12349881 jack pin (2) and ground. 3. Does multimeter read less than 17 volts? YES NO B3YN 1. Repair harness 12268797 circuit 24 (WP 0382 00). 2. Verify no faults found. B4Y 1. Faulty harness 12349881 circuit 24. Beyond unit maintenance repair. 2. Notify supervisor. 0034 00-4