f29. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE        57 AND ANY SUB CODE TM 9-2320-365-20-2 2-1532         Change 1 Tools and Special Tools (Cont)   Wrench Set, Socket (Item 49, Appendix C) Materials/Parts   Packing, Preformed (Item 199, Appendix G)   Adapter, Straight, Pipe to Tube (Item 1.2, Appendix D)   Adapter, Straight, Tube to Boss (Item 1.3, Appendix D)   Hose Assembly, Nonmetallic ( Item 25.1, Appendix D) Reference   TM 9-491-571-12&P 1. Is zero pressure present on C3 clutch when shift is made into affected range? WARNING       CAUTION       Read WARNING and CAUTION on following page.     REASON FOR QUESTION     Clutch Pressure Test or STE/ICE-R Test #50     REASON FOR QUESTION     If pressure is present on C3 clutch when shift is made, WTEC III TPSS may display main code 57 and one or more sub codes.             KNOWN INFO              Transmission oil level OK. Fuse OK. Batteries OK. WTEC III cab transmission harness OK.        POSSIBLE PROBLEMS        Faulty WTEC III transmission ECU. START INITIAL SETUP   Equipment Conditions     Engine shut down (TM 9-2320-365-10).   Tools and Special Tools     Goggles, Industrial (Item 15, Appendix C)     Tool Kit, Genl Mech (Item 44, Appendix C)     Multimeter, Digital (Item 22, Appendix C)     STE/ICE-R (Item 39, Appendix C)     Pan, Drain (Item 24, Appendix C)     Wrench, Torque, 0-200 lb-in. (Item 58, Appendix C) NO Notify DS Maintenance. YES