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. VOLTAGE TEST (1)   Remove instrument panel (Para 7-8). (2)   Set  multimeter  select  switch  to  VOLTS DC. (3)   Connect  positive  (+)  multimeter  lead  to transmission temperature gauge, terminal I. (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,   repair   gauge   wire   5   (see schematic   Appendix   F)   and   go   to Step 3 of this Fault. (b)   If  there  are  22  to  24  vdc  present, gauge wire 5 is OK. (7)   Set    MAIN    POWER    switch    to    OFF position. (8)   Set engine switch to off position. CONTINUITY TEST (1)   Set multimeter select switch to OHMS. (2)   Check  continuity  between  transmission temperature   gauge,   terminal   G   and   a known good ground. (a)   If    there    is    no    continuity,    repair gauge  ground  wire  (see  schematic Appendix F). (b)   If  there  is  continuity,  gauge  ground wire is OK. 2-147