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 TEST OPTIONS REASON FOR QUESTION KNOWN INFO Voltage Test or STE/ICE-R Test #89 POSSIBLE PROBLEMS WARNING Read WARNING on following page. 4. e69. TRAILER BLACKOUT STOPLIGHTS DO NOT ILLUMINATE (CONT) 2-830 Change 1 Replace relay K27 (para 7-9). Faulty dashboard cable assembly. Faulty relay K27. Is 12 VDC present at relay K27 terminal 86 on PDP? If 12 VDC is not present, wire 23 is faulty. Towing vehicle blackout stoplights OK. Circuit breaker CB39 OK. Trailer electrical system OK. Rear lights cable assembly OK. Rear intervehicular 24 VDC (12 pin) cable. NO Repair wire 23 from relay K27 terminal 86 on PDP to connector PX15 socket N (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 NO 5. YES Is continuity present from relay K27 terminal 85 on PDP to ground? Faulty dashboard cable assembly. Faulty relay K27. If continuity is not present, wire 3044 is faulty. Repair wire 3044 from K27 terminal 85 on PDP to terminal board TB2 position 34 (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly ( para 7-11). Towing vehicle blackout stoplights OK. Circuit breaker CB39 OK. Trailer electrical system OK. Rear lights cable assembly OK. Rear intervehicular 24 VDC (12 pin) cable.