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 KNOWN INFO TEST OPTIONS NO TEST OPTIONS KNOWN INFO NO YES YES WARNING Read WARNING on following page. Continuity Test or STE/ICE-R Test #91 REASON FOR QUESTION Voltage Test or STE/ICE-R Test #89 REASON FOR QUESTION POSSIBLE PROBLEMS 3. 2. POSSIBLE PROBLEMS This question eliminates possible faults and determines where troubleshooting continues. Go to step 6 of this fault. CAUTION Read CAUTION on following page. e68. TRAILER BLACKOUT MARKER LIGHTS DO NOT ILLUMINATE (CONT) Is 24 VDC present at relay K29 terminal 30 on PDP? Faulty dashboard cable assembly. Faulty relay K29. Faulty rear lights cable assembly. Faulty rear intervehicular 24 VDC (12 pin) cable. Faulty dashboard cable assembly. Faulty relay K29. Towing vehicle blackout marker lights OK. Circuit breaker CB42 OK. Trailer electrical system OK. Rear lights cable assembly OK. Rear intervehicular 24 VDC (12 pin) cable OK. Towing vehicle blackout marker lights OK. Circuit breaker CB42 OK. Trailer electrical system OK. If 24 VDC is not present, wire 1958 is faulty. Repair wire 1958 from K29 terminal 30 on PDP to circuit breaker CB42 terminal 4 (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). 2-818 Change 1 Is continuity present from connector J130 sockets A, C, and H to relay K29 terminal 87?