Mercedes-Benz ML320. Service manual - part 203

 

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Mercedes-Benz ML320. Service manual - part 203

 

 

Via the selector scheme symbols (87) the alternative selector lever positions and their sequence are shown 
symbolically.  

ETC Control Unit, Location/Task 

Fig. 155: ETC Control Unit, Location/Task 
Courtesy of MERCEDES-BENZ OF NORTH AMERICA. 

ETC Control Unit, Location 
 
See ETC Control Unit, Location

ETC Control Unit, Task 
 
See ETC Control Unit, Task or ETC Control Unit, Task .  

ETC Control Unit, Location 

 

2001 Mercedes-Benz ML320 

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

  

me 

 

Fig. 156: ETC Control Module, Location 
Courtesy of MERCEDES-BENZ OF NORTH AMERICA. 

Location  

The ETC control module (N15/3) is installed in the left footwell, on the heater/air conditioning housing. 

ETC Control Unit, Task 

Transmission 722.6 in model 163 with touch shift

 

2001 Mercedes-Benz ML320 

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

  

me 

 

Fig. 157: ETC Control Module, Task With Touch Shift 
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

 

2001 Mercedes-Benz ML320 

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

  

me 

 

Task  

The ETC control module (N15/3) determines the instantaneous operating condition of the vehicle and controls 
all gearshift sequences taking into account the ease of shifting and the driving situation. This involves receiving, 
converting and transmitting various digital and analog signals. See Fig. 157

It receives operating data in the form of input signals from:  

Starter Lock-Out Contact (Y3/6S1)  

RPM Sensor 2 (Y3/6N2)  

RPM Sensor 3 (Y3/6N3)  

Transmission Oil Temperature Sensor (Y3/6B1)  

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

Instrument Cluster (A1)  

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

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):  

Engine Torque  

Engine Speed  

Accelerator Pedal Position  

Gear Shift  

Engine Status  

Electronic selector lever module control module (N15/5):  

Kickdown Switch (S16/6)  

Selector Lever Position P/N  

Traction system control module (N47):  

Transmission Ratio  

Speeds  

Instrument cluster (A1):  

 

2001 Mercedes-Benz ML320 

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

  

me 

 

 

 

 

 

 

 

 

Content   ..  201  202  203  204   ..