TM-9-2320-365-34-1 LMTV Direct Maintenance Manual M1078 Series - Volume 1 Download
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c65. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DISPLAYS MAIN CODE 42, 44, 45, 46, AND/OR 69 SUB CODE 21 (SERIAL NUMBER 6510032369 AND HIGHER) (CONT) TM 9-2320-365-34-1 2-790 Change 1 5. KNOWN INFO TEST OPTIONS REASON FOR QUESTION POSSIBLE PROBLEMS Resistance Test or STE/ICE-R Test #91 Faulty F solenoid. Faulty WTEC III transmission ECU. Circuit breaker OK. Batteries OK. WTEC III cab transmission harness OK. Transmission external wiring harness OK. Transmission internal wiring harness OK. Is 2.5-5.0 ohms resistance present from F solenoid pin A to pin B? If 2.5-5.0 ohms resistance is not present, F solenoid is faulty. If 2.5-5.0 ohms resistance is present, WTEC III transmission ECU is faulty. NO YES Replace F solenoid (para 7-8). Replace WTEC III transmission ECU (TM 9-2320-365-20-3).