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 e69. TRAILER BLACKOUT STOPLIGHTS DO NOT ILLUMINATE 2-826 Change 1 NOTE INITIAL SETUP Equipment Condition Engine shut down (TM 9-2320-366-10-1). Tools and Special Tools Tool Kit, Genl Mech (Item 46, Appendix C) STE/ICE-R (Item 41, Appendix C) Multimeter, Digital (Item 22, Appendix C) Material/Parts Wire, Elect, 50 ft (Item 71, Appendix D) Personnel Required (2) References TM 9-4910-571-12&P Perform Electrical System Troubleshooting e1. Circuit Breaker Does Not Operate on circuit breaker CB39 prior to beginning this task. START KNOWN INFO TEST OPTIONS WARNING CAUTION Read WARNING and CAUTION on following page. Voltage Test or STE/ICE-R Test #89 If 24 VDC is present, trailer electrical system is faulty. Faulty trailer electrical system. Faulty dashboard cable assembly. Faulty relay K27. Faulty rear lights cable assembly. Faulty rear intervehicular 24 VDC (12 pin) cable. Is 24 VDC present at connector J130 socket F? Towing vehicle blackout stoplights OK. Circuit breaker CB39 OK. NO YES Go to step 2 of this fault. Troubleshoot trailer electrical system per trailer technical manual. 1. POSSIBLE PROBLEMS REASON FOR QUESTION