TM 10-3930-669-20 WARNING Remove all jewelry such as rings, dog tags, bracelets, etc.  If jewelry contacts battery terminal, a direct short may result in instant heating of tools, damage to equipment, and injury or death to personnel. CONTINUITY TEST (1)  Set  multimeter  select  switch  to OHMS. (2)  Set  rear  wiper  switch  to  HIGH position (TM 10-3930-669-10). (3)  Check  continuity  between  rear wiper switch, terminals 2 and 6. (a)    If    there    is    no    continuity, replace rear wiper switch. (b)  If  there  is  continuity,  go  to Step (4) below. (4)  Set  rear  wiper  switch  to  LOW position. (5)  Check  continuity  between  rear wiper switch, terminals 2 and 3. (a)    If    there    is    no    continuity, replace rear wiper switch. (b) If there is continuity, replace rear  wiper  motor  (Para  16- 3). (6) Install rear wiper switch (Para 7- 19). 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  wiper  switch  to  HIGH position (TM 10-3930-669-10). (4) Observe rear wiper. (a)     If     rear     wiper     does     not operate, fault not corrected. Repeat procedure and notify Supervisor. (b)  If  rear  wiper  operates,  fault corrected. (5)   Set   rear   wiper   switch   to   OFF position. (6) Set engine switch to off position. (7)   Set   MAIN   POWER   switch   to OFF position. 2-183