TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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KNOWN INFO TEST OPTIONS WARNING CAUTION Read WARNING and CAUTION on following page. Voltage Test or STE/ICE-R Test #89 Faulty trailer electrical system. Faulty dashboard cable assembly. Faulty relay K29. Faulty rear lights cable assembly. Faulty rear intervehicular 24 VDC (12 pin) cable. Towing vehicle blackout marker lights OK. Circuit breaker CB42 OK. e65. TRAILER BLACKOUT MARKER LIGHTS DO NOT ILLUMINATE TM 9-2320-365-20-1 2-780 Change 1 Perform Electrical System Troubleshooting e1. Circuit Breaker Does Not Operate on circuit breaker CB42 prior to beginning this task. START NOTE REASON FOR QUESTION If 24 VDC is present, trailer electrical system is faulty. NO Go to step 2 of this fault. YES Troubleshoot trailer electrical system per trailer technical manual. POSSIBLE PROBLEMS 1. Is 24 VDC present at connector J130 sockets A, C, and H? INITIAL SETUP Equipment Condition Engine shut down (TM 9-2320-365-10). Personnel Required (2) Material/Parts Wire, Elect, 50 ft (Item 77, Appendix D) Tools and Special Tools Tool Kit, Genl Mech (Item 44, Appendix C) STE/ICE-R (Item 39, Appendix C) Multimeter, Digital (Item 22, Appendix C) References TM 9-4910-571-12&P