69J3D11 9-46123456789TroubleshootingError content Cause ActionCommunication cablerelated error occursEngine start switch is turnedOFF.Turn the engine start switch toON.Communication cable isdisconnected.Connect communication cablebetween the laptop computer’scommunication port and 3-pincommunication coupler of theoutboard motor.Battery is disconnected from theoutboard motor.Connect battery to outboardmotor.The battery voltage is below 12 V. Connect battery of 12 V or higher.Application does notstartThe hardware does not meet therequirements to operate thisapplication.Use a computer that meets thespecified hardware requirements.YDS.exe is not installed inapplication directory.If YDS.exe is not found in theapplication directory, install theapplication again.Other application (Service tool) isalready in operation.Quit the application in operation,since two applications (Servicetool) cannot be operatedsimultaneously.Application related erroroccursError message “Program file orDatabase file is not installedproperly. Please install again.” isdisplayed.Install program file or databasefile again.Database related erroroccursError message “Database filesare not installed properly. Pleaseupdate again.” is displayed.Update database again.Error message “System file notfound ######.###.” is displayed.The database is not applicable tocommunication with ECM.Update database to correspondto ECM.Incorrect fonts onscreenThe computer language does notcorrespond to the application.Use a computer that operates therequired operating system.When executing thestationary test or activetest the test cannot beended even if theCancel is clicked.Execute and Cancel buttons havebeen clicked more thannecessary, and the ECM or PCdoes not operate properly.Turn off your PC.Turn the engine start switch toOFF and reset the ECM.Yamaha Diagnostic System