General Information

Component Location





General Description

The body electrical system is comprised of six ECU applied CAN* communication nodes.
They are BCM (Body Control Module), power window main switch, power window assist switch, power seat ECU, tilt ECU, PIC (Personal Identification Card) ECU.
LIN*2 provides a low speed communication network. It is applied from power window switch to four SPW (Safety Power Window) ECU, seat switch module and from multi function switch to BCM
As the result, the high speed communication is set up by CAN and the low speed communication is set up by LIN.
Additionally for diagnosing entire system, scan tool access is facilitated.
* CAN (Cotroller Area Network) : CAN is a serial bus system especially suited for networking "intelligent" devices as well as sensors and actuators within a system or sub-system.
*2 LIN (Local Interconnect Network) : LIN is a new low cost serial communication system intended to be used for distributed electronic systems in vehicles, which complements the existing portfolio of automotive multiplex networks.






DTC Description

The BCM sets DTC CAN ERROR if the BCM detects a short circuit in the CAN communication line.

DTC Detecting Condition





Schematic Diagram





Signal Waveform