TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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KNOWN INFO TEST OPTIONS  REASON FOR QUESTION  e47. ONE OR MORE CAB TOP MARKER LIGHTS DO NOT ILLUMINATE (CONT)  9.  Is continuity present from  terminal lug TL3 to  ground?  CAUTION  Read CAUTION  on following page.  TM 9-2320-366-20-1  2-594 Change 1  No cab top marker lights  illuminate.  POSSIBLE PROBLEMS  Continuity Test or  STE/ICE-R Test #91  NO  Faulty cab clearance and  marker lights cable assembly.  Repair wire 1951 from terminal lug TL74 to  splice E23 (para 2-45) or replace cab clearance  and marker lights cable assembly (para 7-66).  YES  Repair wire 3097 from terminal lug TL86 to  splice E24 (para 2-45) or replace cab clearance  and marker lights cable assembly (para 7-63).  If continuity is not present,  wire 3097 is faulty. If  continuityis present, wire 1951  is faulty.