Page 1221 of 4133
Fig. 26: Position Sensor, Location/Task/Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Shift Pattern Display, Location
The position indicator (72) is located in the floor shift. See Fig. 26
.
Shift Pattern Display, Task
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Page 1224 of 4133

Backup Lamp Switch, Task
To switch on the backup lamp.
Backup Lamp Switch, Function
When reverse gear is engaged the reversing lamp is actuated direct via the reverse lamp switch
(S16/10s1).
SURVEY OF SYSTEM COMPONENTS, AUTOMATIC TRANSMISSION, LOCATION/TASK/DESIGN/FUNCTION (WITH
TOUCH SHIFT)
Starter Lock-Out Contact, Location/Task/Design/Function
See STARTER LOCK
-OUT CONTACT, LOCATION/TASK/DESIGN/FUNCTION.
Torque Converter, Location/Task/Design/Function
See TORQUE CONVERTER, LOCATION/TASK/DESIGN/FUNCTION
.
Wheel Speed Sensor, Location/Task/Function
See WHEEL SPEED SENSOR, LOCATION/TASK/FUNCTION
.
Electronic Control Module, Location/Task/Design/Function
See ELECTRONIC CONTROL MODULE, LOCATION/TASK/DESIGN/FUNCTION
.
Location/Task/Design/Function Of Freewheel
See LOCATION/TASK/DESIGN/FUNCTION OF FREEWHEEL
.
Transmission Housing Breathing, Location/Task
See TRANSMISSION HOUSING BREATHING, LOCATION/TASK
.
Kick-Down Switch, Location/Task/Design
See KICK
-DOWN SWITCH, LOCATION/TASK/DESIGN.
Location/Task/Function Of Command Valve
See LOCATION/TASK/FUNCTION OF COMMAND VALVE
.
Multiple-Disc Brake, Location/Task/Design/Function NOTE: Transmission With Touch Shift 722.6 In Model 163
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Page 1227 of 4133
See SHIFT PRESSURE REGULATING VALVE, LOCATION/TASK/FUNCTION.
ETC Control Module, Location/Task
See ETC CONTROL UNIT, LOCATION/TASK
.
Electronic Selector Lever Module Control Module, Location/Task/Design
See ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE,
LOCATION/TASK/DESIGN.
Temperature Sensor, Location/Task/Design/Function
See TEMPERATURE SENSOR, LOCATION/TASK/DESIGN/FUNCTION
.
Torque Converter Lock-Up Clutch, Location/Task/Design/Function
See TORQUE CONVERTER LOCK
-UP CLUTCH, LOCATION/TASK/DESIGN/FUNCTION.
Automatic Transmission, Contents Function Description
See AUTOMATIC TRANSMISSION, CONTENTS, FUNCTION DESCRIPTION
.
Starter Lock-Out Contact, Location/Task/Design/Function
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Page 1234 of 4133
Fig. 31: Torque Converter, Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Wheel Speed Sensor, Location/Task/Function
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Page 1235 of 4133
Fig. 32: Wheel Speed Sensor , Location/Task/Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMI SSIONS Complete Transmissions - ML 320 - 722.662
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Page 1236 of 4133
Wheel Speed Sensor, Location
RPM sensors 2 and 3 (Y3/6n2 and Y3/6n3) are permanently connected with the supporting body of the
electrical control unit (Y3/6) via contact tongues. See Fig. 32
.
Wheel Speed Sensor,
The signals from the RPM sensors 2 3 (Y3/6n2, Y3/6n3) are recorded in the ETC control module (N15/3)
together with the wheel and engine speeds and other information, and are the input signals for the
electronic control system.
Wheel Speed Sensor, Function
See SPEED SENSOR, FUNCTION
.
Speed Sensor, Function
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Page 1237 of 4133
Fig. 33: Speed Sensor, Function
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Operation
The RPM sensors are pressed against the transmission housing (51) by a spring (49) which is held against the
valve housing of the shift plate (2a). See Fig. 33
. This ensures a defined distance between the RPM sensors and
the exciter ring (50). RPM sensor 2 (Y3/6yn2) records the speed of the front sun gear via the outer multiple-disc
carrier of the front multiple-disc clutch (K1b) and RPM sensor 3 (Y3/6yn3) records the speed of the front
planetary gear carrier via the inner multiple-disc carrier of the front multiple-disc clutch (K1c).
Electronic Control Module, Location/Task/Design/Function
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Page 1240 of 4133
Fig. 35: Electronic Control Module, Design
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Structure
The electrical control unit (Y3/6) consists of a supporting body made from plastic, in which the electrical
components, RPM sensors 2 and 3 (Y3/6n2, Y3/6n3), the regulating solenoid valves (Y3/6y1, Y3/6y2), the shift
solenoid valves (Y3/6y6), the starter lockout contact (Y3/6s1) and transmission oil temperature sensor (Y3/6b1)
are combined. See Fig. 35
. Conductor tracks integrated into the shell connect the electric components to a plug
connection (11).
2001 Mercedes-Benz ML320
1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662
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Saturday, October 02, 2010 3:15:26 PMPage 71 © 2006 Mitchell Repair Information Company, LLC.