MULTIPLEX COMMUNICATION SYSTEM [TYPE-B]

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Outline

•  A control area network (CAN) system has been adopted in which the multiple control modules send/receive signals using two common communication lines.

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System Wiring Diagram

Note

•  The following figure shows the CAN/LIN communication/ISO communication/local CAN connection conditions. The availability of the equipment may differ depending on the vehicle specifications.

CAN communication (L.H.D.)

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CAN communication (R.H.D.)

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Local CAN

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LIN communication

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ISO communication

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Structural View

Note

•  The following figure shows the installation positions for the equipment which perform CAN communication. The availability of the equipment may differ depending on the vehicle specifications.

L.H.D.

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R.H.D.

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Function

CAN (controller area network) system

•  CAN BUS No.1 is used for communication between the following modules:

―  PCM

―  DSC HU/CM

―  Radar unit

―  TCM

―  Front body control module (FBCM)

―  Adaptive front lighting system (AFS) control module/auto leveling control module

―  Power liftgate (PLG) control module

―  Dosing control unit

―  NOx sensor No.1

―  NOx sensor No.2

―  PM sensor

―  Electric parking brake control module

―  4WD control module

―  DC-DC converter (i-ELOOP)

―  Position memory control module

―  Occupant classification sensor

―  Forward sensing camera (FSC)

―  EPS control module

―  Start stop unit

―  SAS control module

―  Gateway unit (GWU)

―  Active driving display

―  Instrument cluster

•  CAN BUS No.2 is used for communication between the following modules:

―  Instrument cluster

―  Gateway unit (GWU)

―  Wireless charger (Qi)

―  Climate control unit

―  Parking assist unit

―  Rear body control module (RBCM)

―  Blind spot monitoring (BSM) control module (LH)

•  CAN BUS No.3 is used for communication between the following modules:

―  Connectivity master unit (CMU)

―  360° view monitor control module

―  Audio amplifier

―  Gateway unit (GWU)

•  CAN BUS No.4 is used for communication between the following modules:

―  Telematics communication unit

―  Gateway unit (GWU)

Local CAN

•  Local CAN is used for communication between the following modules:

―  Between PCM and TCM

―  Between blind spot monitoring (BSM) control module (LH) and blind spot monitoring (BSM) control module (RH)

LIN communication

•  LIN communication is used for communication between the following modules:

―  Between PCM and fuel injector No.1 (SKYACTIV-D 2.2)

―  Between PCM and fuel injector No.2 (SKYACTIV-D 2.2)

―  Between PCM and fuel injector No.3 (SKYACTIV-D 2.2)

―  Between PCM and fuel injector No.4 (SKYACTIV-D 2.2)

―  Between PCM and engine oil level sensor

―  Between PCM and active air shutter

―  Between PCM and glow control module

―  Between front body control module (FBCM) and humidity sensor/auto light sensor/rain sensor

―  Between front body control module (FBCM) and current sensor

―  Between front body control module (FBCM) and DC-DC converter

―  Between rear body control module (RBCM) and intruder sensor

―  Between rear body control module (RBCM) and theft-deterrent siren

―  Between adaptive front lighting system (AFS) control module and swivel actuator (LH)

―  Between adaptive front lighting system (AFS) control module and swivel actuator (RH)

ISO communication

•  ISO communication is used for communication between the following modules:

―  Between connectivity master unit (CMU) and commander switch

―  Between rear body control module (RBCM) and start stop unit

―  Between rear body control module (RBCM) and power window main switch

―  Between start stop unit and LF control unit

―  Between start stop unit and instrument cluster

Construction

CAN

•  The CAN BUS No.1 has terminal resistors built into the following units which form the CAN lines.

―  PCM

―  Instrument cluster

•  The CAN BUS No.2 has terminal resistors built into the following units which form the CAN lines.

―  Rear body control module (RBCM)

―  Instrument cluster

•  The CAN BUS No.3 has terminator resistors built into the following units which form the CAN lines.

―  Connectivity master unit (CMU)

―  Gateway unit (GWU)

•  The CAN BUS No.4 has terminal resistors built into the following units which form the CAN lines.

―  Telematics communication unit

―  Gateway unit (GWU)

Local CAN

•  The local CAN has terminator resistors built into the following units which form the CAN lines.

―  PCM

―  TCM

―  Blind spot monitoring (BSM) control module (LH)

―  Blind spot monitoring (BSM) control module (RH)

LIN communication

•  The LIN communication has drivers built into the following units which form the LIN communication lines.

―  PCM

―  Fuel injector No.1 (SKYACTIV-D 2.2)

―  Fuel injector No.2 (SKYACTIV-D 2.2)

―  Fuel injector No.3 (SKYACTIV-D 2.2)

―  Fuel injector No.4 (SKYACTIV-D 2.2)

―  Active air shutter

―  Glow control module

―  Engine oil level sensor

―  Front body control module (FBCM)

―  Humidity sensor/auto light sensor/rain sensor

―  Current sensor

―  DC-DC converter

―  Rear body control module (RBCM)

―  Intruder sensor

―  Theft-deterrent siren

―  Adaptive front lighting system (AFS) control module

―  Swivel actuator (LH)

―  Swivel actuator (RH)

―  Adaptive LED headlights control module

―  Front combination light (LH)

―  Front combination light (RH)

ISO communication

•  The ISO communication has drivers built into the following units which form the ISO communication lines.

―  Connectivity master unit (CMU)

―  Commander switch

―  Rear body control module (RBCM)

―  Start stop unit

―  Power window main switch

―  LF control unit

―  Instrument cluster