CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONSTM 9-2350-256-202-19 ELECTRICAL TROUBLESHOOTING--ContinuedENGINE FUEL SHUTOFF SOLENOID-ContinuedWARNINGRemove 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, andinjury or death to personnel.H Reconnect switch panel to neutral safety to bulkheadwiring harness to main switch panel. Disconnect wire 54from ENGINE FUEL SHUTOFF switch side of circuitbreaker. Place red lead of multimeter on terminal ofcircuit breaker and black lead to ground. Turn MASTERswitch on, and check for voltage. Turn MASTER switchOFF. If voltage is present, go to step J. If voltage is notpresent, go to step I.I Reconnect wire 54 to ENGINE FUEL SHUTOFF switchside of 15 A circuit breaker. Disconnect wire 10 from 15A circuit breaker. Place red lead of multimeter in wire 10and black lead to ground. Turn MASTER switch on andcheck for voltage. Turn MASTER switch OFF. If voltageis present, replace circuit breaker (see paragraph 6-10).If voltage is not present, repair/replace wire 10 of mainlighting and B.O. selector switch wiring harness (seeparagraph 6-69).J Reconnect wire 54 to ENGINE FUEL SHUTOFF switchside of 15 A circuit breaker. Disconnect wire 54 fromcircuit breaker side of ENGINE FUEL SHUTOFF switch.Place red lead of multimeter on wire 54 and black lead toground. Turn MASTER switch on, and check for voltage.Turn MASTER switch OFF. If voltage is present, go tostep K. If voltage is not present, repair/replace fuelshutoff switch panel lead assembly (see paragraph 6-49).2-84
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