TM 10-3930-669-20 VERIFY REPAIR (1)  Set  MAIN  POWER  switch  to  ON  position (TM 10-3930-669-10). (2)  Set  engine  switch  to  ignition  position  (TM 10-3930-669-10). (3)   Set   rear   light   switch   to   ON   position   and observe rear lights (TM 10-3930-669-10). (a)  If  rear  lights  do  not  operate,  fault  not corrected.    Perform  Steps  (4)  through (6) below. Repeat procedure and notify Supervisor. (b) If rear lights operate, fault corrected. (4) Set rear light switch to OFF position. (5) Set engine switch to off position (6) Set MAIN POWER switch to OFF position. 2-175