TM 9-2320-364-20-2 2-1322 19.  STOPLIGHT DOES NOT OPERATE (CONT). Turn signal operates indicating   stoplight lamp OK. Turn signal switch OK. Circuit breaker CB6 OK. Wire 1009 OK. Wire 1005 OK. BLACKOUT LIGHTS switch   faulty. Wire 1005A faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Continuity test. STE/ICE-R #91. If there is no continuity measured, BLACKOUT LIGHTS switch is faulty. YES NO Replace BLACKOUT LIGHTS switch (Para 7-27). Verify repair, go to Step 6 of this Fault. 5. Is continuity measured between terminals 6 and 8 on BLACKOUT LIGHTS switch? Repair wire 1005A (see schematic Fig 2-32) or notify DS Maintenance. Verify repair, go to Step 6 of this Fault. 4. Repair wire 1005 (see schematic Fig 2-35) or notify DS Maintenance.   Verify repair, go to Step 6 of this Fault. YES NO Turn signal operates indicating   stoplight lamp OK. Turn signal switch OK. Circuit breaker CB6 OK. Wire 1009 OK. Wire 1005 faulty. BLACKOUT LIGHTS switch   faulty. Wire 1005A faulty. KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION Voltage test. STE/ICE-R #89. If 10 to 14 vdc are not present, wire 1005 is faulty. WARNING Are 10 to 14 vdc measured on wire 1005 at BLACKOUT LIGHTS switch, terminal 6? Read WARNING on Page 2-1323