TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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TM 9-2320-366-20-1 e67. TRAILER LEFT STOP/TURN LIGHT DOES NOT ILLUMINATE (CONT) 2-810 Change 1 TEST OPTIONS REASON FOR QUESTION KNOWN INFO Voltage Test or STE/ICE-R Test #89 POSSIBLE PROBLEMS WARNING Read WARNING on following page. 4. If 12 VDC is not present, wire 461B is faulty. Towing vehicle left stop/turn light OK. Circuit breaker CB43 OK. Trailer electrical system OK. Rear lights cable assembly OK. Rear intervehicular 24 VDC (12 pin) cable. Faulty dashboard cable assembly. Faulty relay K30. Is 12 VDC present at relay K30 terminal 86 on PDP? NO Repair wire 461B from relay K30 terminal 86 on PDP to connector J19 socket 2 (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 POSSIBLE PROBLEMS 5. Towing vehicle left stop/turn light OK. Circuit breaker CB43 OK. Trailer electrical system OK. Rear lights cable assembly OK. Rear intervehicular 24 VDC (12 pin) cable. Is continuity present from relay K30 terminal 85 on PDP to ground? Faulty dashboard cable assembly. Faulty relay K30. If continuity is not present, wire 3047 is faulty. Repair wire 3047 from K30 terminal 85 on PDP to terminal board TB2 position 50 (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly ( para 7-11). NO YES Replace relay K30 (para 7-9).