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

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TM 9-2350-247-20-1 TRAILER LIGHTS DO NOT OPERATE—Continued 0043 00 3Y 1. Turn MASTER SWITCH ON. 2. Turn light switch to BO marker. 3. (H) Measure voltage between trailer receptacle (1) pins A (2), C (3), and F (4) to ground with steering levers pulled back. 4. Does multimeter read 17 volts or more for all readings? YES NO 3YN 1. Replace trailer wiring harness (WP 0301 00). 2. Verify no faults found. 4Y 1. Turn light switch to SER DRIVE. 2. (H) Measure voltage between trailer receptacle (1) pins B (2) and E (3) to ground with steering levers pulled back. 3. Does multimeter read 17 volts or more? YES NO 4YN 1. Replace trailer wiring harness (WP 0301 00). 2. Verify no faults found. 5Y 1. Faulty trailer harness(es) and/or lights. 2. Notify your supervisor. 0043 00-2