TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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TEST OPTIONS REASON FOR QUESTION NO YES Voltage Test or STE/ICE-R Test #89 KNOWN INFO 3. WARNING Read WARNING on following page. POSSIBLE PROBLEMS Faulty dashboard cable assembly. Faulty WTEC II cab transmission harness. Faulty rear lights cable assembly. Faulty REVERSE WARNING relay in WTEC II VIM. Faulty WTEC II transmission ECU pushbutton shift selector. Faulty WTEC III relay K25. Faulty WTEC III transmission ECU. Is 12 VDC present at circuit breaker CB73 terminal 7? e53. BACKUP LIGHT DOES NOT ILLUMINATE (CONT) Circuit breaker CB70 OK. Circuit breaker CB73 OK. Both turn signals illuminate. Engine starts. Transmission reverse (R) range OK. Backup light lamps OK. Backup light assembly OK. If 12 VDC is not present, wire 1577 is faulty. Repair wire 1577 from circuit breaker CB73 terminal 7 to connector PX15 socket J (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). TM 9-2320-365-20-1 2-642 Change 1