4.01 Power and distribution

4.02 ABS and ESP

4.03 BCM

4.04 C-EPS

4.05 EPB

4.06 SRS

4-07 Taxi Short Line Interface

4.08 Front Wiper Wash

4.09 Multimedia

4.10 Switch Group

4.11 Gear Shift Knob

4.12 Lighting System

4.13 Smart Key System

4.14 Air Conditioning System

4.15 Window Control System

4.16 Diagnostic Port DLC

4.17 High-Voltage System

4.18 CAN Network

4-19 Small Lamp Backlight System

4.20 Grounding System