TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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TEST OPTIONS 4. KNOWN INFO 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 vehicle equipped with WTEC II transmission controls? Visual Inspection REASON FOR QUESTION This question helps eliminate possible problems and determines where troubleshooting continues. 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. TM 9-2320-366-20-1 2-676 Change 1 NO YES Go to step 12 of this fault.