CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS TM 9-2350-256-202-19 ELECTRICAL TROUBLESHOOTING-ContinuedMASTER RELAY SYSTEM AND SLAVE RECEPTACLEWARNINGRemove all jewelry such as rings, dog tags,bracelets, etc. If jewelry contacts a metalsurface a direct short may result in instantheating of tools, damage to equipment,and injury or death to personnel.CReconnect wire 459 MASTER switch. Disconnect wire459B from MASTER switch. Place red lead ofmultimeter in wire 459B and black lead to ground.Turn MASTER switch on and check for voltage. TurnMASTER switch OFF. If voltage is present, replacemaster switch (see paragraph 6-10). If voltage is notpresent, go to step D.DReconnect wire 459B to MASTER switch. Disconnectswitch panel to head lamps and bulkhead wiringharness from main switch panel. Place red lead ofmultimeter in socket G of wire 459B and black lead toground. Turn MASTER switch on and check forvoltage. Turn MASTER switch OFF. If voltage ispresent, replace/repair wire 459B of switch panel. Ifvoltage is not present, go to step E.2-62
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