TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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YES KNOWN INFO 11. POSSIBLE PROBLEMS REVERSE WARNING Relay Replacement Test REASON FOR QUESTION TEST OPTIONS 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. WTEC II transmission controls. WTEC II cab transmission harness OK. WTEC II dashboard cable assembly OK. Rear lights cable assembly OK. Replace REVERSE WARNING relay in WTEC II VIM (para 8-6). TM 9-2320-365-20-1 2-658 Change 1 Do backup lights operate with new REVERSE WARNING relay installed in WTEC II VIM? Faulty REVERSE WARNING relay in WTEC II VIM. Faulty WTEC II transmission ECU pushbutton shift selector. Replace WTEC II TEPSS (para 8-2). NO If backup lights operate with new REVERSE WARNING relay installed, REVERSE WARNING relay is faulty. If backup lights do not operate with new REVERSE WARNING relay installed, WTEC II TEPSS is faulty.