TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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TEST OPTIONS REASON FOR QUESTION Voltage Test or STE/ICE-R Test #89 KNOWN INFO 13. POSSIBLE PROBLEMS Faulty WTEC III relay K25. Faulty WTEC III dashboard cable assembly. Faulty rear lights cable assembly. Faulty WTEC III transmission ECU. Is 12 VDC present at WTEC III relay K25 terminal 30? e55. 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. WTEC III transmission controls. If 12 VDC is not present, wire 1903 is faulty. WARNING Read WARNING on following page. TM 9-2320-366-20-1 2-694 Change 1 NO Repair wire 1903 from WTEC III relay K25 terminal 30 to circuit breaker CB73 terminal 8 (para 2-45) or replace WTEC III dashboard cable assembly (para 7-11). YES