TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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TEST OPTIONS REASON FOR QUESTION KNOWN INFO Voltage Test or STE/ICE-R Test #89 POSSIBLE PROBLEMS WARNING Read WARNING on following page. 4. YES e63. TRAILER RIGHT STOP/TURN LIGHT DOES NOT ILLUMINATE (CONT) TM 9-2320-365-20-1 2-764 Change 1 Towing vehicle right stop/turn light OK. Circuit breaker CB44 OK. Trailer electrical system OK. Rear lights cable assembly OK. Rear intervehicular 24 VDC (12 pin) cable OK. Is 12 VDC present at relay K31 terminal 86 on PDP? If 12 VDC is not present, wire 460B is faulty. Faulty dashboard cable assembly. Faulty relay K31. NO Repair wire 460B from relay K31 terminal 86 on PDP to connector J19 socket 3 (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). YES 5. Is continuity present from relay K31 terminal 85 on PDP to ground? KNOWN INFO Towing vehicle right stop/turn light OK. Circuit breaker CB44 OK. Trailer electrical system OK. Rear lights cable assembly OK. Rear intervehicular 24 VDC (12 pin) cable OK. POSSIBLE PROBLEMS TEST OPTIONS Continuity Test or STE/ICE-R Test #91 REASON FOR QUESTION If continuity is not present, wire 3048 is faulty. Faulty dashboard cable assembly. Faulty relay K31. NO Repair wire 3048 from K31 terminal 85 on PDP to terminal board TB2 position 53 (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly ( para 7-11). Replace relay K31 (para 7-9).