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)   Remove fuse 2 (Para 7-33). (2)   Set multimeter select switch to OHMS. (3)   Check    continuity    between    relay    R2, terminal 87 cavity and fuse 2 cavity. (a)   If  there  is  no  continuity,  repair  wire 26 (see schematic Appendix F). (b)   If  there  is  continuity,  replace  relay R2. (4)   Install fuse 2 (Para 7-33). (5)   Install relay R2 (Para 7-33). VOLTAGE TEST (1)   Remove lower and upper column covers (Para 7-21). (2)   Set  multimeter  select  switch  to  VOLTS DC. (3)   Connect  positive  (+)  multimeter  lead  to engine switch, wire 34 terminal. (4)   Connect negative (-) multimeter lead to a known good ground. (5)   Set     MAIN     POWER     switch     to     ON position (TM 10-3930-669-10). (6)   Set   engine   switch   to   ignition   position (TM 10-3930-669-10). (a)   If    there    are    not    22    to    24    vdc present, replace engine switch. (b)   If  there  are  22  to  24  vdc  present, engine switch is OK. (7)   Set    MAIN    POWER    switch    to    OFF position. (8)   Set engine switch to off position. (9)   Install  upper  and  lower  column  covers (Para 7-21). 2-129