Function - Yamaha F150B Service Manual

Function

• Diagnosis
Displays each part name, and the engine ECM trouble codes and status when the engine start
switch is turned to "ON." This allows you to quickly specify malfunctioning parts. The trouble codes
displayed are the same as those described. See "Trouble code and checking step" (4-6).
• Diagnosis record
Displays each part name and the engine ECM trouble codes that have been registered. This
allows you to check the outboard motor's record of malfunctions. The trouble codes displayed are
the same as those described. See "Trouble code and checking step" (4-6).
• Engine monitor
Each 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 the
Engine monitor function can be displayed in a graph.
Engine speed
Intake pressure (*1)
Atmospheric (ambient) pres-
sure
Ignition timing
Battery voltage
TPS voltage
(*1) Intake air pressure
(*2) Engine oil pressure
(*3) Engine shut-off switch
• Stationary test
Operation tests can be performed with the engine off.
Ignite ignition coils #1 & #4
Ignite ignition coils #2 & #3
• Active test
The tests can be carried out while the engine is running and the shift is in the N position. It is not
possible to carry out the test while the boat is running.
Fully open ISC valve
• Data logger
Displays 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 engine
ECM record data on a file so that you can view and display the graph later.
Engine speed
Battery voltage
Throttle valve opening
ISC valve opening
Fuel injection duration
Intake temperature
Engine temperature
Oil pressure (*2)
(*4) Neutral switch
(*5) Engine start switch
Operate injector (#1–#4)
Operate electric fuel pump
Angle of ISC valve opening
TPS voltage
Engine temperature
Engine stop lanyard switch
(*3)
Shift position switch (*4)
Dual engine system switch
Main switch (*5)
Overheat thermoswitch
Shift cut-off switch
Operate ISC valve
Intake pressure
Oil pressure
YDIS
0
1
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4
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10
A
4-2