Kia Optima: Description

BCM, SJB(Smart Junction Box) and CLU(Instrument Cluster) are connected by CAN line.
The nearest module with input switch or actuator receives the input data to reduce the wiring and then send input data to the others which need them via CAN lines.In case of sending output, it is used to CAN communication, not wiring.
SJB can also control relays and IPS.So Each module allots the current data and actuation data.

FunctionSchematic Diagrams
System Block Diagram
Component Parts And Function Outline
Component part
Function
Vehicle speed sensor
Converts vehicle speed to pulse.
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Components and Components Location
Components
1. HECU module
2. Front wheel speed sensor
3. Rear wheel speed sensor
4. Yaw rate & Lateral G sensor
5. Steering angle sensor
6. ABS Warning lamp
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Changing the Automatic Transaxle Fluid
1. Raise and suitably support the vehicle.
2. Remove the drain plug located at the bottom center front of the transaxle pan.
3. After the oil has drained, completely install a new washer on the plug ...