TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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KNOWN INFO 7. TEST OPTIONS CAUTION Read CAUTION on following page. Continuity Test or STE/ICE-R Test #91 REASON FOR QUESTION POSSIBLE PROBLEMS e65. TRAILER BLACKOUT MARKER LIGHTS DO NOT ILLUMINATE (CONT) Replace intervehicular 24 VDC cable (para 7-79). TM 9-2320-365-20-1 2-788 Change 1 Towing vehicle blackout marker lights OK. Circuit breaker CB42 OK. Trailer electrical system OK. Dashboard cable assembly OK. Relay K29 OK. Faulty rear lights cable assembly. Faulty rear intervehicular 24 VDC (12 pin) cable. Is continuity present from connector P51 socket 10 to connector P53R sockets 7 and 9 and pin 10? If continuity is not present, wire 484T is faulty. If continuity is present, intervehicular 24 VDC (12 pin) cable is faulty. YES Repair wire 484T from connector P51 socket 10 to connector P53R socket 7 or 9 or pin 10 (para 2-40) or replace rear lights cable assembly (para 7-75). NO