TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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KNOWN INFO Transmission pushbutton shift selector in neutral (N). Batteries OK. Service drive lights OK. Circuit breakers OK. POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Visual Inspection If vehicle is equipped with connector P81, perform Thermal Switch Bypass procedure. If vehicle is not equipped with connector P81, continue with step 2 of this fault. e2. ENGINE DOES NOT CRANK NOTE Faulty starting motor. Faulty auxiliary starter solenoid. Faulty battery to starter cable assembly. Faulty oil pressure switch. Faulty relay K24. Faulty start and charging cable assembly. Faulty relay K1. Faulty engine control cable assembly. Faulty starter pushbutton switch. Faulty neutral start relay. Faulty WTEC II Vehicle Interface Module (VIM). Faulty WTEC II cab transmission wiring harness. Faulty WTEC II transmission ECU pushbutton shift selector (TEPSS). Faulty relay K26. Faulty dashboard cable assembly. Faulty WTEC III transmission ECU. Faulty WTEC III transmission pushbutton shift selector (TPSS). Perform Thermal Switch Bypass Procedure. Perform Engine System Troubleshooting a1. Engine Does Not Crank and Electrical System Troubleshooting e1. Circuit Breaker Does Not Operate on circuit breakers CB21 and CB77 prior to beginning this task. Remove and install plastic cable ties as required. START NO YES Go to step 2 of this fault. Is vehicle equipped with connector P81? 1. WARNING Read WARNING on following page. INTIAL SETUP Equipment Conditions Engine shut down (TM 9-2320-365-10). Cab raised (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) Wire, Elect, 50 ft (Item 77, Appendix D) Wire, Relay Test (Item 9, Appendix E) Materials/Parts Ties, Cable, Plastic (Item 76, Appendix D) Adhesive (Item 8, Appendix D) Dispenser, Pressure Sensitive Adhesive Tape (Item 21, Appendix D) Seal Ring, Metal (Item 251, Appendix G) Personnel Required (2) References TM 9-4910-571-12&P TM 9-2320-365-20-1 2-154 Change 1