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 MASTER SWITCH ON INDICATOR DOESN’T LIGHT—Continued 0048 00 2Y 1. Turn MASTER SWITCH to OFF. 2. Remove instrument panel for access (WP 0296 00). 3. Remove harness 10933038 circuit 10 plug (1) and cable assembly 12349858 circuit 27 plug (2) from instrument panel circuit breaker jacks (3) and (4). 4. Measure resistance between circuit breaker jacks (3) and (4). 5. Does multimeter read 0 ohms? YES NO 2YN 1. Replace instrument panel circuit breaker (WP 0280 00). 2. Verify no faults found. 3Y 1. Measure resistance between harness 10933038 circuit 10 plug pin and master switch panel power receptacle positive jack pin (1). 2. Does multimeter read 0 ohms? YES NO 3YN 1. Replace harness 10933038 (WP 0266 00). 2. Verify no faults found. 0048 00-2