1997 MERCEDES-BENZ ML430 cruise control

Fig. 15: Identifying Cruise Control Function - Shown On Engine 111 Euro3/4
Task
Maintaining the preselected vehicle speed constant irrespective of the engine load, without operation of the
accelerator pedal.
Function
The cruise control function is integrated in the engine control unit. It can be activated from > 40 km/h with the
cruise control switch. The engine control unit operates the throttle valve actuator for the cruise control function
with the aid of the input signals and the position of the cruise control switch.
The cruise control mode is switched off by:
pushing the cruise control push-button switch (S40) or variable cruise control push-button switch (S40/4)
into the "OFF" position
Operating the service brake
Moving selector lever into position "N"
Control intervention function of traction system
Vehicles with column sleeve module (MRM)
The signals from the push-button switch for the cruise control are detected by the steering column module and
transmitted to the CAN data bus.

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY CAB Throttle Control, Speed Control Systems - 163 Chassis
me
Saturday, October 02, 2010 3:36:27 PMPage 26 © 2006 Mitchell Repair Information Company, LLC.

Vehicles with EZS control unit without column sleeve module (MRM)
The signals from the push-button switch for the cruise control are detected by the control unit EIS and
transmitted to the CAN data bus.
Vehicles without EZS control unit
The signals from the cruise control switch are transmitted directly to the engine control unit.
Vehicles with manual transmission (MT)
Cruise control remains active during gear change, in other words the cruise control is not switched off when the
clutch is operated.
Traction systems control unit
Transmits the vehicle speed signal via CAN to the ME control unit.
CRUISE CONTROL SWITCH, LOCATION/TASK/DESIGN/FUNCTION - GF30.30-P-3100F
ENGINE 104 (except 104.98),
Motor electronics control unit, location/task/
design/functionother than engine 111 EVOGF07.61-P-
5000F
Engine 111 EVOGF07.61-P-
5000GS
Cruise control switch, location/task/design/
functionwith cruise control or Distronic GF30.30-P-
3100F
Variable cruise control switch, location/task/
design/functionwith cruise control or Distronic except
GF30.30-P-
3101A
Electronic accelerator/cruise control/idle speed
control actuator location/task/design/function GF30.22-P-
4010F
Throttle valve actuator, location/task/design/
functionEngine 111 EVOGF30.22-P-
4101GS
Stop lamp switch, location/task/function GF42.10-P-
4000A
Clutch pedal switch, location/task/functionwith MTGF29.10-P-
2100F
Variable speed limiter, functionAdditional cruise control function except
GF30.30-P-
3001A
ETC control unit, location/task
Transmits information about the selector
lever position P/N and the driving mode
selected via CAN.
Transmission 722.6
GF27.19-P-
4012G

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY CAB Throttle Control, Speed Control Systems - 163 Chassis
me
Saturday, October 02, 2010 3:36:27 PMPage 27 © 2006 Mitchell Repair Information Company, LLC.

111.946 up to 31.5.98,
111.943,
111.973 up to 31.5.97,
111.920,
111.921 up to 31.8.98,
111.941,
111.942 up to 31.8.98,
111.944 up to 31.5.98,
111.945 up to 31.8.98, 111.974,
111.947/970, 112.942 up to 31.5.98,
119, 120 up to 31.5.97,
668.940/941,611.960/961
with CODE (440a) Cruise control
with CODE (443a) Cruise control and electrically adjustable steering column (codes 400 and 441)
with CODE (446) Cruise control, electrically adjustable steering column and airbag (440, 441 and 442)
ENGINE 104, 111, 112, 113, 119, 120, 137, 613.960, 628.960 (except, 112.96, 113.99) with CODE (494a)
USA version
Fig. 16: Identifying Cruise Control Switch


2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY CAB Throttle Control, Speed Control Systems - 163 Chassis
me
Saturday, October 02, 2010 3:36:27 PMPage 28 © 2006 Mitchell Repair Information Company, LLC.

KICKDOWN SWITCH LOCATION/TASK/DESIGN/FUNCTION - GF30.30-P-4000A
ENGINE 112, 113, 119, 120 in MODEL 129
ENGINE 104, 119, 120 in MODEL 140
ENGINE 112, 113 in MODEL 163
ENGINE 166 in MODEL 168
ENGINE 111,112 (except, 112.96) in MODEL 170
ENGINE 111,112, 113 in MODEL 202
ENGINE 111,112 (except, 112.96) in MODEL 203
ENGINE 111,112, 113 in MODEL 208
ENGINE 111,112, 113 in MODEL 210
ENGINE 112,113,137 (except, 113.99) in MODEL 220
ENGINE 113,137 (except 113.99) in MODEL 215
ENGINE 112,113 (except, 113.99) in MODEL 230
ENGINE 112, 113 in MODEL 211
ENGINE 112, 113 in MODEL 209

Cruise control
switch
location
Left top behind the steering wheel.
Cruise control
switch taskSetting of cruise control and Distronic.
With 30 km/h limitation: Switch on and off 30 km/h limitation when below 30
km/h.
Cruise control
switch designPush-button switch with several switching contacts.

Cruise control
switch
functionWhen the cruise control push-button switch is operated, two switching contacts are
always activated simultaneously. The actual input takes place by closing one of the
switching contacts (e.g. storing the speed). The safety contact must close simultaneously
so that the input is accepted.


2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY CAB Throttle Control, Speed Control Systems - 163 Chassis
me
Saturday, October 02, 2010 3:36:27 PMPage 29 © 2006 Mitchell Repair Information Company, LLC.

Fig. 17: Identifying Kickdown Switch
SAFETY PRECAUTIONS
SAFETY INFORMATION: THROTTLE CONTROL, CRUISE CONTROL SYSTEM - AS30.00-Z-9999ZZ
MODEL all
RISK OF INJURY - AS30.30-Z-0001-01A
Never look directly into the laser beam. Do not attempt to suppress the natural reflex of the eyelids.
Avoid direct skin contact with the laser beam. If eye damage is suspected, consult an eye specialist
without delay.
Kickdown
switch positionin footwell behind accelerator pedal
Kickdown
switch taskIdentify kickdown position of accelerator pedal, in order to influence
transmission control, cruise control, variable speed limiter and
Distronic.

Kickdown
switch designUp to approx. 6/02 designed as an electrical switch (S16/6). As of
approx. 7/02 (without engine 166) the electrical switch is replaced by
the Kickdown simulator (spring).GF30.20-P-
4011-02C
Kickdown
switch function
Engine 111, 112, 113, 119, 120, 137 up to approx 6/02 and Engine 166:
on closed contact the ground is switched to the engine control unit
As of approx. 7/02 (without Engine 166): Kickdown recognition is
performed via the signal of the accelerator pedal sensor.

Risk of injury to skin and eyes from laser beamsMODEL allAS30.30-Z-0001-01A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY CAB Throttle Control, Speed Control Systems - 163 Chassis
me
Saturday, October 02, 2010 3:36:27 PMPage 30 © 2006 Mitchell Repair Information Company, LLC.

AD54.30-P-3000-02A
Warning buzzer function check IC

Warning buzzer
D
Light reminder and parking brake reminder

D
Key reminder

I
D
Seat belt reminder

for approx. 6 s

I
,
M
,
H
and Korea

for approx. 12 s

G

The warning tone is interrupted as soon as the seat belt buckle is

inserted.

D
Warning tone for a shortage of oil

D
Vehicle speed warning

G
> 120 km/h, v-limit warning (cruise

control)

D
In addition the symbol for vehicle speed warning appears in the
instrument cluster with multi-function display.
D

On model 163 a warning tone sounds for approx. 5 seconds if the

CAN signal is unusable.

D
Model 168 with automatic clutch system features an audible gear

warning.

It sounds if a gear is engaged at the same time as the driver's

door is opened. Brake and accelerator pedal must not be

operated.

Copyright DaimlerChrysler AG 05.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
d by Modification services.
Page 1

Fig. 13: Cooling Fan Circuit
CRUISE CONTROL

2001 Mercedes-Benz ML320
2001 SYSTEM WIRING DIAGRAMS Mercedes-Benz - ML320
me
Saturday, October 02, 2010 3:27:59 PMPage 27 © 2006 Mitchell Repair Information Company, LLC.

Fig. 14: Cruise Control Circuit
DEFOGGERS

2001 Mercedes-Benz ML320
2001 SYSTEM WIRING DIAGRAMS Mercedes-Benz - ML320
me
Saturday, October 02, 2010 3:27:59 PMPage 29 © 2006 Mitchell Repair Information Company, LLC.