TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
Page 917 of 1824
If both RH side and rear marker lights do not  illuminate, go to step 21 of this fault.  TM 9-2320-366-20-1  If all three marker lights do not illuminate, repair  wire 3094 from splice E21 to terminal lug TL32  (para 2-45) and go to step 6 of this fault if required  or replace rear lights cable assembly (para 7-84)  and go to step 1 of this fault.  Change 1 2-600.1