TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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1. KNOWN INFO TEST OPTIONS NO YES WARNING CAUTION Read WARNING and CAUTION on following page. Voltage Test or STE/ICE-R Test #89 Troubleshoot trailer electrical system per trailer technical manual. Go to step 2 of this fault. e66. TRAILER BLACKOUT STOPLIGHTS DO NOT ILLUMINATE 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 TM 9-2320-365-20-1 2-790 Change 1 Perform Electrical System Troubleshooting e1. Circuit Breaker Does Not Operate on circuit breaker CB39 prior to beginning this task. START NOTE REASON FOR QUESTION Is 24 VDC present at connector J130 socket F? Faulty trailer electrical system. Faulty dashboard cable assembly. Faulty relay K27. Faulty rear lights cable assembly. Faulty rear intervehicular 24 VDC (12 pin) cable. POSSIBLE PROBLEMS Towing vehicle blackout stoplights OK. Circuit breaker CB39 OK. If 24 VDC is present, trailer electrical system is faulty. 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)