TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311-20-1 3-3 TROUBLESHOOTING CHART — CONTINUED d. STARTER MOTOR CIRCUIT (M109A4/M109A5) — (1) ENGINE DOES NOT CRANK; ALL ELECTRICAL CONTINUED ACCESSORIES OPERATE — CONTINUED CONTINUED FROM STEP N 1. Reconnect lead 14 to output side of STARTER switch. 2. Disconnect lead 14 at connector between STARTER switch and neutral safety switch. 3. Place red lead of multimeter on lead 14 and black lead to ground. 4. Turn MASTER switch ON, push STARTER switch, and check for voltage. 5. Turn MASTER switch OFF. Is voltage present? Repair or replace lead 14 of bulkhead-to-portable instrument panel wiring harness (para 8-49). Repair or replace lead 14 of diode wiring harness (para 8-61). 3-48