Mercedes-Benz ML320. Service manual - part 175

 

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Mercedes-Benz ML320. Service manual - part 175

 

 

Fig. 95: 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. See Fig. 95

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. 96: 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. 96

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):  

Selector Lever Position/Shift Range  

 

2001 Mercedes-Benz ML320 

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

  

me 

 

ETC Control Unit, Task (Without Touch Shift) 

Transmission 722.6 in Model 163 Without Touch Shift 

Fig. 97: ETC Control Module without Touch Shift

 

2001 Mercedes-Benz ML320 

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

  

me 

 

 

 

 

 

 

 

 

Content   ..  173  174  175  176   ..