General Description; Engine Control System Description; Caution System Description; Operating Hour Indication System - Suzuki DF70A Service Manual

1A-2 Engine General Information and Diagnosis:

Engine Control System Description

The DF70 / 80 / 90 models employ an integrated system which performs the control functions for fuel injection,
ignition, idle / trolling speed (idle air), etc. through the ECM (Engine Control Module).
System Structure
INPUT
(sensor/switch)
CKP sensor
CMP sensor
MAP sensor
IAT sensor
Cylinder temp. sensor
Exhaust manifold temp. sensor
Throttle position sensor
Neutral switch
Shift position sensor
Oil pressure switch
Emergency stop switch
Ignition switch
PTT switch
Trim/Tilt sensor
Water pressure sensor (Optional)
Speedo sensor (Optional)

General Description

CONTROL
(ECM)
Fuel injection system
Ignition system
Idle air control system
Fuel pump system
Caution system
Self diagnostic system
Fail saf e system

Operating hour indication system

Oil changing reminder system
Start-in-gear protection system
Starter motor relay control system
Power trim and tilt relay
control system
Z9J0111101001
OUTPUT
(actuator etc.)
Fuel injector
Ignition coil
IAC valve
High pressure fuel pump
Caution Buzzer
Monitor-tachometer
Starer motor relay,
(Starter motor)
PTT motor relay
Trim gauge
Water pressure gauge
Speedometer
I9J011110001-02