CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS TM 9-2350-256-202-19 ELECTRICAL TROUBLESHOOTING--ContinuedGAGE PANEL LIGHTS-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.J Reconnect main lighting and master relay wiringharness to main lighting switch. Disconnect wire10 of main lighting and B.O. selector switchwiring harness from wire 15 of main lighting andmaster relay wiring harness. Place red lead ofmultimeter in wire 10 and black to ground. TurnMASTER switch on and check for voltage. TurnMASTER switch OFF. If voltage is present,repair/replace wire 15 of main lighting and masterrelay wiring harness (see paragraph 6-70). Ifvoltage is not present, repair/replace wire 10 ofmain lighting and B.O. selector switch wiringharness (see paragraph 6-69).KReconnect switch panel to gage panel andmiscellaneous switches wiring harness to mainswitch panel. Install main switch panel (11), flatwasher (10), ground lead (9), three lockwashers(8), and three screws (7) to mounting brackets.Open air inlet doors (TM 9-2350-256-10).Disconnect wire 48 pin A from bulkhead to masterrelay wiring harness. Place red multimeter lead insocket and black lead to ground. Turn MASTERswitch on and check for voltage. If voltage ispresent, repair/replace switch panel, radio, andbilge pump to bulkhead wiring harness (seeparagraph 6-53). If voltage is not present,troubleshoot master relay circuit (see paragraph 2-19, master relay fails to operate).2-272
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
