TM-9-2350-261-20-1 Unit Maintenance Manual Volume 1 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download
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TM 9-2350-261-20-1 SERVICE HEADLIGHTS DO NOT WORK — Continued 0031 00 B4Y 1. Turn MASTER SWITCH to OFF (see your -10). 2. Install right headlight wiring harness circuit 17 (high beam) or 18 (low beam) on service headlight. 3. Repair front main wiring harness circuit 17 or 18 between bulkhead and dimmer switch (WP 0312 00). 4. Verify no faults found. CY 1. Measure resistance between dimmer switch jack (1) pins G (2) and E (3) and between pins G (2) and F (4). Multimeter should read 0 ohms once and infinity once. 2. Click dimmer switch and measure resistance between dimmer switch jack (1) pins G (2) and E (3) and between pins G (2) and F (4). Multimeter should read infinity once and 0 ohms once. 3. Is high beam selector switch operating properly? CYN 1. Replace dimmer switch (WP 0285 00). 2. Verify no faults found. C2Y 1. Repair front main wiring harness circuit 18 (low beam) or circuit 17 (high beam) (WP 0312 00). 2. Verify no faults found. 0031 00-4