Suzuki Swift Sport 2004 Service & Repair Manual page 58

1A-8 Engine General Information and Diagnosis:
CAN communication system uses the serial communication in which data is transmitted at a high speed. It uses a
twisted pair of two communication lines for the high-speed data transmission. As one of its characteristics, multiple
control modules can communicate simultaneously. In addition, it has a function to detect a communication error
automatically. Each module reads necessary data from the received data and transmits data. ECM communicates
control data with each control module as follows.
ECM Transmission Data
ECM Transmit DATA
NOTE
• In communication between ECM and combination meter and between ECM and steering angle
sensor (ESP® model), data is transmitted only from ECM to combination meter and steering angle
sensor. (Combination meter and steering angle sensor does not transmit data to ECM.)
• *1: Hong Kong model only.
ECM Reception Data
ECM Receive DATA
Engine torque signal
Accelerator pedal position signal
Throttle position signal
Brake pedal switch signal
A/C refrigerant pressure signal
A/C compressor clutch signal
Fuel consumption signal
Immobilizer indicator light control signal
MIL control signal
Diagnostic trouble code (DTC)
Engine coolant temperature signal
Engine speed signal
Vehicle speed signal
ECM-keyless start control module code
Torque request signal
A/T select lever position signal
Transmission actual gear position signal
Transmission oil temperature signal
A/C switch ON signal
Electric load signal
ESP® status signal
ABS active signal
Wheel speed signal (front right)
Wheel speed signal (front left)
ECM-keyless start control module code
ID code of keyless start control module
TCM BCM
Combination ESP® Control
Meter
*1
ESP® Control
TCM BCM
Module
ABS Control
Keyless Start
Module
Control
Module (Non-ESP®
Module
model)
I7RS0B110002-01
ABS Control
Module Keyless Start
(Non-ESP® Control Module
model)
I7RS0B110003-02