Mercedes-Benz ML320. Manual — part 176

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Task - The ETC control module (N15/3) determines the instantaneous operating condition for the vehicle and
controls all gearshift sequences taking into account the ease of shifting and the driving situation. See Fig. 97.
This involves receiving , converting and transmitting various digital and analog signals.

Input signals:

Starter Lock-Out Contact (Y3/6S1)

RPM Sensor 2 (Y3/6N2)

RPM Sensor 3 (Y3/6N3)

Transmission Oil Temperature Sensor (Y3/6B1)

Kickdown Switch (S16/6)

Gear Recognition Switch (S16/10)

Output signals:



Reverse/parking lock valve

Input and output signals:



Datalink connector (X11/4)

In addition there is a connection via the engine compartment bus to the:



ME-SFI Control Module (N3/10) or CDI Control Module (N3/9)



Traction System Control Module (N47)



Transfer Case Control Module (N78)

The solenoid valves for the modulating and shift pressure and for the gear changes are actuated by the ETC
control module (N15/3). The pressure required is calculated from all input signals, adjusted to the torque to be
transferred.

The following information from other systems is then processed:



ME-SFI Control Module (N3/10) or CDI Control Module (N3/9)



(Y66/1)



Selector lever position P/N to the engine control module (ME-SFI) (N3/10) (only on detection of the
selector lever position "P" or "N" on the transmission range recognition switch (S16/10) and at the starter
interlock contact (Y3/6s1)).

Traction system control module (N47):



Wheel speeds

2001 Mercedes-Benz ML320

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

me



Gear shift



Traction status

Transfer case control module (N78):



Position of transfer case (off-road or on-road ratio)



Engine torque



Engine speed



Accelerator pedal position



Gear soft



Engine status

The following information is output to other systems:

ME-SFI Control Module (N3/10) or CDI Control Module (N3/9):



Kickdown switch (S16/6)



Engage drive mode

Traction system control module (N47):



Transmission ratio



Speeds

Electronic Selector Lever Module Control Module, Location/Task/Design (With Touch Shift)

2001 Mercedes-Benz ML320

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

me

Fig. 98: Electronic Selector Lever Module Control Module
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Electronic Selector Lever Module Control Module, Location

The electronic selector lever module control module (n15/5) is located in the center console of the
vehicle. See Fig. 98.

Electronic Selector Lever Module Control Module, Task

See ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE, TASK.

Electronic Selector Lever Module Control Module, Design

See ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE, DESIGN.

2001 Mercedes-Benz ML320

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

me

Electronic Selector Lever Module ESM Control Module, Task

2001 Mercedes-Benz ML320

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

me