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TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download

Page 234 of 870

TM 9-2350-247-20-1 SERVICE HEADLIGHTS DO NOT OPERATE—Continued 0036 00 CY 1. Measure resistance between beam selector 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 beam selector switch and measure resistance between beam selector switch jack (1) pins G (2) and E (3) and between pins G (2) and F (4). Multimeter should indicate infinity once and 0 ohms once. 3. Is high beam selector switch operating properly? YES NO CYN 1. Install main harness plug on light switch jack. 2. Replace beam selector switch (WP 0273 00). 3. Verify no faults found. 2CY 1. Repair main wiring harness circuit 18 (low beam) or circuit 17 (high beam) (WP 0294 00). 2. Verify no faults found. 0036 00-4