GF82.10-D-3010H Brake Light Actuation, Function

GF82.10-D-3010H Brake Light Actuation, Function


Function requirements:
- "Tml. 15 ON"
- Service brakes operated

The ESP control unit (N30/4) receives the "service brake engaged" signal and sends it over the engine compartment-CAN (CAN C) to the EZS control unit (N73).

This sends the signal over the interior CAN (CAN B) to the SAM control unit (N10). At the same time, the SAM control unit receives the "service brake engaged" signal straight from the stop lamp switch (S9/1).
The SAM control unit then actuates the stop lamp (E3/6e4) in the left taillamp (E3/6) and the stop lamp (E4/6e4) in the right taillamp (E4/6).

The direct connection of the SAM control unit to the brake light switch is intended to counteract any delay in forwarding the brake light signal from the EZS control unit over the interior CAN.

The brake light signal is also received by other control units over the interior CAN and the engine compartment CAN, where it is evaluated and used for triggering system-specific functions.

At the same time, in vehicles with code (E43) Trailer hitch socket or with code (E40) Trailer socket 7-pin, the signals for actuating the above-listed lamps on the trailer are forwarded over the interior CAN to the trailer connection unit [AAG] control unit (N28/1).