Control units and coding

Where the control units are located and how they are connected: the J533 data bus diagnostic interface in the center, the CAN drivetrain, chassis, Extended, convenience, Infotainment and diagnostic buses, LIN, additional buses and the MOST optical ring.

The J519 onboard power supply control unit: what it does — central locking, lights, relays, heaters, washers; how it is connected — power supply, CAN, three LIN buses, inputs and the terminal 15 request — based on self-study program SSP 611.

How terminals S, 15, 50 and 75 are switched: an ignition lock with four switches or a start button, the “two out of three” rule for the terminal 15 relay, and starter operation — based on self-study program SSP 611.