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 HIGH BEAM INDICATOR LIGHT DOESN’T WORK—Continued 0050 00 4Y 1. Install jumper wire between harness 12349881 dimmer switch plug (1) pins D (2) and H (3). 2. Remove instrument panel for access (WP 0295 00). 3. Remove harness 12349881 circuit 519/519A plug (4) from high beam indicator light jack (5). 4. Measure resistance between harness 12349881 circuit 519/519A plug (4) pins. 5. Does multimeter read 0 ohms? YES NO 4YN 1. Faulty harness 12349881 circuits 519 and 519A. Beyond unit maintenance repair. 2. Notify supervisor. 5Y 1. Install dimmer switch and plug (WP 0333 00). 2. Replace high beam indicator light assembly (WP 0287 00). 3. Verify no faults found. 0050 00-3/4 blank