Yamaha F150B Service Manual

Also see for F150B: Owner's manual Service manual Owner's manual

4-2YDIS012345678910AFunction• DiagnosisDisplays each part name, and the engine ECM trouble codes and status when the engine startswitch is turned to “ON.” This allows you to quickly specify malfunctioning parts. The trouble codesdisplayed are the same as those described. See “Trouble code and checking step” (4-6).• Diagnosis recordDisplays each part name and the engine ECM trouble codes that have been registered. Thisallows you to check the outboard motor’s record of malfunctions. The trouble codes displayed arethe same as those described. See “Trouble code and checking step” (4-6).• Engine monitorEach sensor status and the engine ECM data are displayed while the engine start switch is “ON.”This enables you to find malfunctioning parts quickly. In addition, the data displayed using theEngine monitor function can be displayed in a graph.(*1) Intake air pressure(*2) Engine oil pressure(*3) Engine shut-off switch(*4) Neutral switch(*5) Engine start switch• Stationary testOperation tests can be performed with the engine off.• Active testThe tests can be carried out while the engine is running and the shift is in the N position. It is notpossible to carry out the test while the boat is running.• Data loggerDisplays 13 minutes of recorded data for 2 or more of the items stored in the engine ECM. In addi-tion, the operating time as compared to the engine speed and the total operating time are dis-played. This allows you to check the operating status of the engine. You can also save the engineECM record data on a file so that you can view and display the graph later.Engine speed Throttle valve opening Engine stop lanyard switch(*3)Intake pressure (*1) ISC valve opening Shift position switch (*4)Atmospheric (ambient) pres-sure Fuel injection duration Dual engine system switchIgnition timing Intake temperature Main switch (*5)Battery voltage Engine temperature Overheat thermoswitchTPS voltage Oil pressure (*2) Shift cut-off switchIgnite ignition coils #1 & #4 Operate injector (#1–#4) Operate ISC valveIgnite ignition coils #2 & #3 Operate electric fuel pumpFully open ISC valve Angle of ISC valve openingEngine speed TPS voltage Intake pressureBattery voltage Engine temperature Oil pressure