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 2. WARNING CAUTION Read WARNING and CAUTION on following page. Is 12 VDC present at connector P87? Go to step 3 of this fault. Replace backup light assembly (para 7-29). KNOWN INFO POSSIBLE PROBLEMS Faulty backup light assembly. 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. If 12 VDC is present, backup light assembly is faulty. 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. TM 9-2320-365-20-1 2-640 Change 1