Suzuki SWIFT RS415 2017, Service Manual

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9C-1 Instrumentation / Driver Info. / Horn:
Instrumentation / Driver Info. / Horn
General Description
CAN Communication Data of Combination Meter
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Communication of ECM (3), TCM (if equipped) (4), BCM (2) and combination meter (1) is established by CAN
(Controller Area Network).
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 simultaneoulsy. In addition, it has a functionality to detect a communication error
automatically. Each module reads necessary data from the received data and transmits data. Combination meter
receives the following information from each control module.
Data which combination meter receives from ECM
• Engine revolution speed signal
• Engine coolant temperature signal
• Vehicle speed signal
• Malfunction indicator lamp (MIL) control signal
• Immobilizer lamp control signal
Data which combination meter receives from TCM (A/T model)
• Transmission range sensor signal (A/T select lever position indicator)
• Malfunction indicator lamp (MIL) control signal
Data which combination meter receives from BCM
• Brake fluid level switch signal (brake warning light control signal)
• Parking brake switch signal (brake warning light control signal)
• Driver side seat belt buckle switch signal (Seat belt warning light control signal)
• Charging system warning lamp signal (Charge warning light control signal)
• Engine oil pressure switch signal (Oil pressure warning light control signal)
• Lighting switch signal
• Door switch signal (door ajar warning lamp)
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3
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