TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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1. KNOWN INFO TEST OPTIONS WARNING CAUTION Read WARNING and CAUTION on following page. Voltage Test or STE/ICE-R Test #89 POSSIBLE PROBLEMS Faulty trailer electrical system. Faulty dashboard cable assembly. Faulty relay K28. Faulty rear lights cable assembly. Faulty rear intervehicular 24 VDC (12 pin) cable. e62. TRAILER MARKER/TAILLIGHTS DO NOT ILLUMINATE Towing vehicle marker/taillights OK. Circuit breaker CB41 OK. TM 9-2320-365-20-1 2-750 Change 1 NOTE Perform Electrical System Troubleshooting e1. Circuit Breaker Does Not Operate on circuit breaker CB41 prior to beginning this task. REASON FOR QUESTION INITIAL SETUP Equipment Conditions Engine shut down (TM 9-2320-365-10). 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) Material/Parts Wire, Elect, 50 ft (Item 77, Appendix D) Personnel Required (2) References TM 9-4910-571-12&P NO Go to step 2 of this fault. YES Troubleshoot trailer electrical system per trailer technical manual. Is 24 VDC present at connector J130 socket E? If 24 VDC is present, trailer electrical system is faulty. START