TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
Page 1364 of 1824
TM 9-2320-366-20-1 e66. TRAILER RIGHT STOP/TURN LIGHT DOES NOT ILLUMINATE (CONT) 2-800 Change 1 TEST OPTIONS REASON FOR QUESTION KNOWN INFO Voltage Test or STE/ICE-R Test #89 If 12 VDC is not present, wire 460B is faulty. POSSIBLE PROBLEMS Faulty dashboard cable assembly. Faulty relay K31. WARNING Read WARNING on following page. Is 12 VDC present at relay K31 terminal 86 on PDP? 4. 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. NO Repair wire 460B from relay K31 terminal 86 on PDP to connector J19 socket 3 (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). YES KNOWN INFO TEST OPTIONS Continuity Test or STE/ICE-R Test #91 REASON FOR QUESTION If continuity is not present, wire 3048 is faulty. POSSIBLE PROBLEMS Faulty dashboard cable assembly. Faulty relay K31. Is continuity present from relay K31 terminal 85 on PDP to ground? 5. 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. Replace relay K31 (para 7-9). NO YES Repair wire 3048 from K31 terminal 85 on PDP to terminal board TB2 position 53 (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly ( para 7-11).