Suzuki DF 40 - Components for System Control; Engine Control Module (Ecm)

ENGINE CONTROL SYSTEM 3-4
COMPONENTS FOR SYSTEM CONTROL
ENGINE CONTROL MODULE (ECM)
The ECM sends signals to control the actuators based on the information inputs from each sensor / switch.
Major controls are as follows:
NAME OF CONTROL DESCRIPTION
Fuel injection control
NOTE:
The information related to the Caution system, Self-Diagnostic System, Operating hour indication system
and O
2
feedback system are retained in ECM memory.
• Controls fuel injection amount and timing.
Ignition control • Controls ignition timing.
Idle air control
• Controls idling/trolling speed by adjusting intake air amount through IAC
valve.
Fuel pump control • Controls high pressure fuel pump drive.
Caution system control
• Informs operator of abnormal engine condition.
• Controls engine speed.
Self-diagnostic system
control
• Informs operator of sensor / switch malfunction.
Fail-safe system control • Allows operation during sensor/ switch malfunction.
Operating hour indication
system control
• Informs operator of total operating time in units of 50 hours.
Start-in-gear
protection system control
• Prevents engine start when shift is positioned in forward or reverse.
O
2
feedback system
control
• Controls and performs O
2
feedback operation using optional O
2
sensor.