Engine Control System Structure; System Structure 1 - Suzuki DF 60 Service Manual

3-2 ENGINE CONTROL SYSTEM

ENGINE CONTROL SYSTEM STRUCTURE

The DF60/DF70 models employ an integrated control system which performs the control functions for fuel
injection, ignition, idle/trolling speed (idle air), etc. through the ECM (Engine Control Module).

SYSTEM STRUCTURE 1

INPUT
(sensor/switch)
CKP sensor
CMP sensor
MAP sensor
IAT sensor
Cylinder temp. sensor
Exhaust manifold
temp. sensor
CTP switch
Neutral switch
Oil pressure switch
O sensor (optional)
2
[Abbreviations used in this section]
ECM (Engine control module)
CKP (Crankshaft position)
CMP (Camshaft position)
MAP (Manifold absolute pressure)
IAT (Intake air temperature)
CTP (Closed throttle position)
IAC (Idle air control)
CONTROL
(ECM)
Fuel injection control system
Ignition control system
Idle air control system
Fuel pump control system
Caution system
Self-diagnostic system
Fail-safe system
Operating hour indication
system
Oil change reminder system
Start-in-gear protection system
O feedback system
2
OUTPUT
(actuator etc.)
Fuel injector
Ignition coil
IAC valve
High pressure fuel
pump
Caution buzzer
Monitor-tachometer
Starter motor