Suzuki 2006 SX4, Service Manual

Page: 57 / 1478

Engine General Information and Diagnosis: 1A-13
Electronic Control System Description
S6RW0C1101022
The electronic control system consists of 1) various sensors which detect the state of engine and driving conditions, 2)
ECM which controls various devices according to the signals from the sensors and 3) various controlled devices.
Functionally, it is divided into the following sub systems:
• Fuel injection control system
• Ignition control system
• IMT valve control system
• Electric Throttle Body Control System
• Fuel pump control system
• Radiator cooling fan control system
• Evaporative emission control system
• A/F sensor heater control system
• HO2S heater control system
• A/C control system
• Immobilizer control system
• Generator control system
• Controller (computer) communication system
Especially, ECM, BCM, combination meter, TCM, ABS control module, 4WD control module and keyless start control
module intercommunicate by means of CAN (Controller Area Network) communication.
AFS-
AFH+
AFH-
AFS+
5V
12V
1
1
3
7 8
2
6
9
10
5
11 12
13
14
4
I7RW01110007-02
4. 0.4 V 10. Electrode 12. CPU 14. Rich
8. A/F sensor connector 11. A/F signal processing circuit 13. Lean