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)   Open engine access panel (TM 10- 3930-669-10). (2)   Disconnect connector P21 from master cylinder pressure switch connector. (3)   Set multimeter select switch to VOLTS DC. (4)   Connect positive (+) multimeter lead to connector P21, terminal 1. (5)   Connect negative (-) multimeter lead to a known good ground. (6)   Set MAIN POWER switch to ON position (TM 10-3930-669-10). (7)   Set engine switch to ignition position (TM 10-3930-669-10). (a)   If there are not 22 to 24 Vdc present, perform Steps (8) through (11) below and go to Step 5 of this Fault. (b)   If there are 22 to 24 Vdc present, perform Steps (8) and (9) below and go to Step 3 of this Fault. (8)   Set engine switch to off position. (9)   Set MAIN POWER switch to OFF position. (10)   Connect connector P2 1 on master cylinder pressure switch connector. (11)   Close engine access panel (TM 10- 3930-669-10). 2-257

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