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 5Y 1. Remove harness 8763491 plug (1) from harness 12349881 jack (2) at vehicle bulkhead. 2. Measure voltage between harness 12349881 jack (2), pin D (3), and ground. 3. Does multimeter read less than 17 volts? YES NO 5YN 1. Replace harness 8763491 (WP 0373 00). 2. Verify no faults found. 6Y 1. Install harness 8763491 circuit 20 jack on right BO marker light. 2. Faulty harness 12349881 circuit 20. Beyond unit maintenance repair. 3. Notify supervisor. BY 1. Are only both BO taillights out or only both BO markers out? YES NO BYN GO TO CY (PAGE 0034 00-5) B2Y 1. Are both BO taillights out? YES NO B2YN 1. Faulty harness 12349881 circuit 20. Beyond unit maintenance repair. 2. Notify supervisor. 0034 00-3