TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download
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KNOWN INFO TEST OPTIONS  Voltage Test or  STE/ICE-R Test #89  REASON FOR QUESTION  POSSIBLE PROBLEMS  12 VDC and 24 VDC circuits  operate.  Circuit breaker CB43 OK.  Circuit breaker CB79 OK.  Terminal board TB1 OK.  Faulty WTEC III dashboard  cable assembly.  Faulty WTEC III ECU.  Faulty WTEC III TPSS.  This question eliminates  possible problems and  determines where  troubleshooting continues.  Is 24 VDC present at  connector PX33 socket R?  4.  NO  YES  WARNING  CAUTION  Read WARNING and  CAUTION on  following page.  Go to step 9 of this fault.  TM 9-2320-366-20-2  f40. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DOES NOT  ILLUMINATE (CONT)  2-1822.18 Change 1