TM-9-2350-311-20-2 Maintenance Manual Volume 2 for M109 Cab Download
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TM 9–2350–311–20–2 3–114 3–3 TROUBLESHOOTING — CONTINUED i. INTERCOMMUNICATION SYSTEM — CONTINUED (3) DRIVER CANNOT COMMUNICATE. — CONTINUED CONTINUED FROM STEP N CONTINUED ON NEXT PAGE 1. Place one multimeter lead in socket H of J801 or J804 connector and other lead to pin C of J803 connector. 2. Check for continuity. Is continuity present? O yes no Replace control box (para 8–16). P Check ground connection of control box and repeat step P. If malfunction per- sists, replace control box (para 8–16). yes no 1. Place one multimeter lead in socket A of J801 or J804 connector and other lead to ground. 2. Check for continuity. Is continuity present? DRIVER’S CONTROL BOX J801 OR J804 CONNECTOR SOCKET A + – DRIVER’S CONTROL BOX + J801 OR J804 CONNECTOR SOCKET H – J803 CONNECTOR PIN C