Control Unit For Electronic Selector Lever Module, Task

WARNING: This page is about a different car, the 2004 Mercedes-Benz C230 and 2003 Mercedes-Benz C230. However, it is still accessible from the selected car via links, so may be relevant.

The electronic selector lever module control unit (N15/5) receives digital and analog input signals, converts theses and actuates various components or transmits information to various control units via the controller Area Network bus class C (engine compartment) (CAN-C).

The selector lever position and touch shifts carried out are detected in a non-contact manner by means of optoelectronic switches. A photoelectric barrier is closed or interrupted each time the position of the selector lever is changed.

Input signals:

Transmission mode switch (S16/5).
Voltage supply (circuit 87).

Via CAN-C there is connection to:

Instrument cluster (A1).
ME-SFI control unit (N3/10) or CDI control unit (N3/9).
ETC control unit (N15/3).
ESP and BAS control unit (N47-5).
EIS [EZS] control unit (N73).

ETC [EGS] control unit (N15/3):

Selector lever position.
Transmission mode switch (S16/5).
R/P-restraining magnet energized.
Kickdown.

Electronic ignition switch control unit (N73):

Selector lever position for actuation of backup lamp.

The following information is received:

ESP and BAS control unit (N47-5):

Wheel speed and right rear direction of rotation.
Wheel speed and left rear direction of rotation.
Set braking torque.
Brake pedal depressed.

Electronic ignition switch control unit (N73):

Circuit 50 engine start switch (circuit 50).
Circuit 15 voltage supply switched UB (battery voltage) (circuit 15).
Stop lamp feedback.
Message from drive authorization system (DAS).

The following information is transmitted.

Instrument cluster (A1):

Engage drive mode.
Transmission mode switch (S16/5).
Selector lever position.

Motor electronics control unit (N3/10) or CDI control unit (N3/9):

Selector lever position.