TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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YES e62. TRAILER MARKER/TAILLIGHTS DO NOT ILLUMINATE (CONT) TM 9-2320-365-20-1 2-756 Change 1 CAUTION Read CAUTION on following page. 6. Is continuity present from relay K28 terminal 87 on PDP to connector J51 pin 9? TEST OPTIONS Continuity Test or STE/ICE-R Test #91 REASON FOR QUESTION KNOWN INFO Towing vehicle marker/taillights OK. Circuit breaker CB41 OK. Trailer electrical system OK. Relay K28 OK. POSSIBLE PROBLEMS Faulty dashboard cable assembly. Faulty rear lights cable assembly. Faulty rear intervehicular 24 VDC (12 pin) cable. NO Repair wire 489T from relay K28 terminal 87 on PDP to connector J51 pin 9 (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly ( para 7-11). If continuity is not present, wire 489T is faulty.