Sensor, Switch And Actuator - Yamaha F150B Service Manual

Sensor, switch and actuator

Engine ECM
Pulser coil
TPS
Air pressure sensor
Air temperature sensor
Engine temperature sensor
Oil pressure sensor
Thermoswitch
Neutral switch
Engine shut-off switch
Fuel injector
Ignition coil
High-pressure fuel pump
Shift cut switch
ISC valve
YDIS
Calculates the command values, and controls the fuel injection,
ignition timing, and the engine speed based on the signals sent by
each sensors.
For detecting the engine speed.
For detecting the crankshaft angle and the position of the pistons.
For identifying each group of cylinders (#1 and #4, #2 and #3).
For utilizing the detected signals to controlling the fuel injection,
ignition timing, and the engine speed.
To detect the throttle valve opening.
To detect the intake air pressure for controlling the ignition timing
and the fuel injection amount.
To detect the intake temperature for compensating the ignition tim-
ing.
Compensate the ignition timing and the fuel injection amount.
To detect the oil pressure and apply it to the alert of low oil pres-
sure and the engine speed control.
In case of overheat, the thermoswitch is turned on. Once it is
turned on, the engine ECM activates the engine speed control
and the alert buzzer goes off.
Detects the neutral position.
Activates the engine stop function compulsorily.
Gives optimal amount of fuel at the optimal timing according to the
engine ECM command signals.
Activates the ignition at the optimal timing based on the signals
from engine ECM.
Pressurizes the fuel in the vapor separator, and delivers the fuel to
the fuel rails.
To identify shift-in or shift-out condition for the forward gearshift.
To adjust the amount of intake air into the engine at idle.
Allows quick, precise and detailed diagnosis by reading out the
diagnosis codes and/or by performing the active test, after con-
necting the personal computer installed with the valid software.
Electronic control system
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