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.

FunctionTire terminology and definitions
Air Pressure: The amount of air
inside the tire pressing outward on
the tire. Air pressure is expressed in
pounds per square inch (psi) or kilopascal
(kPa).
Accessory Weight: This means the
...
Glass antenna
When the radio power switch is turned on while the ignition key is in either
the “ON” or “ACC” position, your car will receive both AM and FM broadcast signals
through the antenna in the ...
Removal
1.
Disconnect the negative(-) battery
terminal.
2.
Remove the lower (A) after loosening
the mounting screws.(Refer to the BD group - "Crash pad")
...