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)  Set multimeter select switch to VOLTS DC. (2)  Connect positive (+) multimeter lead to relay R9, terminal 30 cavity. (3)  Connect negative (-) multimeter lead to a known good ground. (4)  Set MAIN POWER switch to ON position (TM 10-3930-669-10). (5)  Set engine switch to ignition position (TM 10-3930-669-10). (a)  If there are not 22 to 24 vdc present, perform Steps (6) and (7) below and repair wire 27 (see schematic Appendix F). (b)  If there are 22 to 24 vdc present, wire 27 is OK. (6)  Set engine switch to off position. (7)  Set MAIN POWER switch to OFF position. CONTINUITY TEST (1)  Set multimeter select switch to OHMS. (2)  Ground connector P19, terminal 1. (3)  Check continuity between relay R9, terminal 87 and a known good ground. (a)  If there is no continuity, repair wire 27B (see schematic Appendix F). (b)  If there is continuity, replace relay R9. (4)  Connect connector P19 on transmission inching valve connector. (5)  Install floor plate (Para 15-12). (6)  Install relay R9 (Para 7-33). 2-405