CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS TM 9-2350-256-202-19ELECTRICAL TROUBLESHOOTING-ContinuedTRANSMISSION OIL PRESSURE GAGE-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.FReconnect bulkhead to engine bracket and rear fueltank transmitter wiring harness to bulkhead anddisconnect from engine disconnect. Place red lead ofmultimeter in socket D of wire 321 and black lead toground. Turn MASTER switch on and check forvoltage. Turn MASTER switch OFF. If voltage ispresent, go to step G. If voltage is not present,repair/replace wire 321 of bulkhead to engine bracketand rear fuel tank wiring harness (see paragraph 6-73for dual voltage; 6-74 for single voltage).GReconnect bulkhead to engine bracket and rear fueltank wiring harness to engine disconnect.Disconnect wire 321 from transmission oil pressuresending unit. Place red lead of multimeter on wire321 and black lead to ground. Turn MASTER switchon and check for voltage. Turn MASTER switch OFF.If voltage is present, replace transmission oil pressuresending unit (see paragraph 6-19). If voltage is notpresent, repair/replace wire 321 of engine wiringharness (see paragraph 6-58 for dual voltage; 6-59 forsingle voltage).2-122
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