MERCEDES-BENZ ML430 1997 Complete Repair Manual

HEADLAMP CLEANING SYSTEM (HCS), LOCATION OF COMPONENTS - GF82.15-P-0002-03GH
Control module for headlamp range
adjustment, location/taskMODELS 129, 140,
202, 208, 210 with
code 612b xenon
headlamp unitGF82.10-P-2102A
Xenon headlamp, position/functionMODELS 129, 140,
202, 208, 210 with
code 612b xenon
headlamp unitGF82.10-P-2001A
Xenon headlamp, position/functionModel 215GF82.10-P-2001B
Xenon headlamp,
position/design/functionMODEL 163 up to
31.08.01GF82.10-P-2007GH
MODEL 163 as of
01.09.01GF82.10-P-
2007GHA
Xenon headlamp control module,
location/taskMODELS 129, 140,
202, 208, 210 with
code 612b xenon
headlamp unitGF82.10-P-2104A
Xenon headlamp ignition module,
location/taskMODELS 129, 140,
202, 208, 210 with
code 612b xenon
headlamp unitGF82.10-P-2105A
Table of contents, function
description for exterior lighting GF82.10-P-0999A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 26 © 2006 Mitchell Repair Information Company, LLC.

Fig. 12: Identifying Headlamp Cleaning System (HCS) Components Location
HEADLAMP CLEANING SYSTEM (HCS), FUNCTION - GF82.15-P-0002GH
MODEL 163 as of 01.09.01 with CODE ( 600a) headlamp cleaning system
Connection diagram
Fig. 13: Identifying Headlamp Cleaning Sy stem (HCS) Components Connection Diagram

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electr ical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 27 © 2006 Mitchell Repair Information Company, LLC.

Function prerequisites:
Circuit 15 ON
Function
The headlamp cleaning system is switched on by pressing the SRA [HCS] switch (S4/1) .
The corresponding input of the Extended Activity Module (EAM) (N10/1) , which receives the input
from the switch, sends the signal to relay 5 (F2k5) .
The relay switches circuit 30 , for a duty cycle of approx. 1 second, through to the HCS pump (M5/2) .
The HCS pump (M5/2) builds up pressure in the washing water line.
The water pressure acts against the return springs of the telescopic nozzles.
The telescopic nozzles extend and spray washing water onto the headlamp glass.
After the duty cycle, the pressure in the washing water line drops again and the telescopic nozzles move
back to their starting position due to spring load.
Pressing the SRA [HCS] switch (S4/1) again during an ongoing headlamp cleaning cycle has no effect.
A further cleaning cycle can only be initiated after the previous cycle has ended.
TABLE OF CONTENTS, FUNCTION DESCRIPTION FOR HEADLAMP CLEANING SYSTEM (HCS) - GF82.15-P-0998GHZ
MODEL 163 as of 01.09.01 with CODE (600a) headlamp cleaning system
FUNCTION OF HEADLAMP CLEANING SYSTEM TELESCOPIC NOZZLES - GF82.15-P-2100-04GH
After the HCS pump (M5/2) has started to operate, pressure builds up in the washing water line for approx. 1
Headlamp cleaning system (HCS),
location of components GF82.15-P-0002-
03GH
Telescopic nozzles for headlamp
cleaning system,
location/task/design/function GF82.15-P-2100GH
Extended Activity Module,
location/task/design GF54.21-P-4107GK
Headlamp cleaning system
(HCS), function GF82.15-P-0002GH
Headlamp cleaning system
(HCS), location of components GF82.15-P-0002-
03GH
Survey of system components
for headlamp cleaning system
(HCS), location/task/design/
function GF82.15-P-9998GHZ

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 28 © 2006 Mitchell Repair Information Company, LLC.

second. Driven by the water pressure, the nozzles first move telescopically into the cleaning position. Then as a
result of a further pressure rise, a valve at each telescopic nozzle opens and an exactly metered quantity of
washing water is sprayed onto the headlamp lenses.
Swirl chambers are provided at the tips of the telescoping sections and these ensure controlled propagation of
the water jet, even when traveling fast. After the cleaning process, the telescoping sections are retracted back
into the starting position with the aid of return springs.
TELESCOPIC NOZZLE FOR HEADLAMP CLEANING SYSTEM, LOCATION/TASK/ DESIGN/FUNCTION - GF82.15-P-
2100GH
MODEL 163 as of 01.09.01 with CODE (600a) headlamp cleaning system
Fig. 14: Identifying Telescopic Nozzle Location For Headlamp Cleaning System

Telescopic nozzle for
headlamp cleaning
system, locationThe two telescopic
nozzles are both arranged
in the front bumper,
under the headlamps.
Telescopic nozzle for
headlamp cleaning
system, designThe telescopic nozzle is a
hydraulically extendable
telescoping section with
integrated return springs
and has no electrical
connection.
Telescopic nozzle for Cleaning of headlamp

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 29 © 2006 Mitchell Repair Information Company, LLC.

SURVEY OF SYSTEM COMPONENTS FOR HEADLAMP CLEANING SYSTEM (HCS),
LOCATION/TASK/DESIGN/FUNCTION - GF82.15-P-9998GHZ
MODEL 163 as of 01.9.01 with CODE (600a) headlamp cleaning system
INTERIOR LIGHTING (IL), LOCATION OF COMPONENTS - GF82.20-P-0002-01GH
Location of components
Fig. 15: Identifying Interior Lighting (IL) Components Location
headlamp cleaning
system, taskglass
Function of headlamp
cleaning system
telescopic nozzles GF82.15-P-2100-04GH
Headlamp cleaning system (HCS),
location of components GF82.15-P-0002-
03GH
Telescopic nozzle for headlamp
cleaning system,
location/task/design/function GF82.15-P-2100GH
Table of contents, function description
for headlamp cleaning system (HCS) GF82.15-P-
0998GHZ

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 30 © 2006 Mitchell Repair Information Company, LLC.

INTERIOR LIGHTING (IL), FUNCTION - GF82.20-P-0002GH
MODEL 163
The interior lighting can be switched on in two ways: Manually with
the switches for the individual light
automatically by
opening the doors
Switching off the ignition
Locking the vehicle with the central locking feature
Following an accident
CONTENTS - FUNCTION DESCRIPTION OF INTERIOR LIGHTING (IL) - GF82.20-P-0998GH
MODEL 163
Switching on interior
lighting manually GF82.20-P-2009GH
Switching on interior
lighting automatically GF82.20-P-2010GH
Interior lighting, location of
components GF82.20-P-0002-01GH
Function description,
interior lights GF82.20-P-0002GH
Switching interior lights
on/off manually, function GF82.20-P-2009GH
Switching interior lights
on/off automatically,
function GF82.20-P-2010GH
Control of operating period
of interior lights, function GF82.20-P-3001GH
Dimming interior lights,
function GF82.20-P-3002GH
Actuating rear dome lamp,
function GF82.20-P-4005GH
Actuating entrance/exit
lamps, functionas of 12.99GF82.20-P-4004GH
Actuating footwell lamps,
functionas of 12.99GF82.20-P-4008GH
Rotary tumbler GF82.20-P-4105GH

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 31 © 2006 Mitchell Repair Information Company, LLC.

SWITCHING INTERIOR LIGHTS ON/OFF MANUALLY, FUNCTION - GF82.20-P-2009GH
MODEL 163
The front dome lamp (with shut-off delay and reading lamp) (E15/2) , the right rear dome lamp (E15/9)
and the left rear dome lamp (E15/8) can be switched manually to continuous operation. Each lamp is equipped
with a switch which is actuated by pressing the lamp glass.
The actuated switch interrupts the automatic lamp actuation by the all-activity module (AAM, N10) and
simultaneously switches the lamp connected to c. 30 to ground. Continuous operation can only be terminated by
pressing the switch again. It is not possible to switch off the automatic lamp actuation.
The left front and right front footwell lamps (E17/16 and E17/15) are switched on together with the front
dome lamp (E15/2) The rear interior lamp (E15/3) can also be switched manually to continuous operation.
Automatic lamp actuation is actuated directly when the tailgate is opened and not by the all-activity module. It
is not possible to switch off automatic lamp actuation manually.
Fig. 16: Identifying Front Dome Lamp (With Shut
-Off Delay And Reading Lamp)
microswitches,
location/purpose/
design/function

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 32 © 2006 Mitchell Repair Information Company, LLC.

Fig. 17: Identifying Left Rear Dome Lamp And Right Rear Dome Lamp
SWITCHING INTERIOR LIGHTS ON/OFF AUTOMATICALLY, FUNCTION - GF82.20-P-2010GH
MODEL 163
Automatic actuation of interior lights is triggered by
opening a door,
unlocking vehicle with transmitter key,
switching off ignition within 30 seconds of switching off exterior lighting (terminal 58k)
or
after crash recognition.
When opening a door, the respective rotary tumbler microswitch (S87/2, S87/3, S87/6 or S87/7) is actuated
and a signal for automatic light actuation is sent to All-Activity-Module (AAM, N10)
With crash recognition by ETR control module with airbag (ETR/ AB, N2/2) up to 11.99 or by restraint
systems control module (N2/7) as of 12/99, signal for automatic light actuation is sent to All-Activity-Module
via a separate cable.
All-Activity-Module actuates correspondin
g interior lights dimmed and switches them off again, after expiry of
Actuating rear dome
lamp GF82.20-P-4005GH
All-activity module
(AAM) GF54.21-P-4100GH

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 33 © 2006 Mitchell Repair Information Company, LLC.

switched-on time.

Lights switched on manually cannot be switched off by All-Activity-Module.
Rear interior lamp (E15/3) is actuated directly by opening of rear door and not via All-Activity-Module.
Front and rear entrance and exit lamps (E17/3, E17/4, E17/5 and E17/6) introduced as of 12/99 are
actuated via the Extended-Activity-Module (EAM) when corresponding door is opened.
Following table shows which lights are switched on automatically, according to triggering.
Event
Dome
lamp with
delay and
reading
lamp, frontFootwell
lamp, front
left or ri
ght
(as of
12.99)
Entrance/exit
lamp, front left or
right door (as of
12.99)
Dome
lamp,
front leftDome
lamp, rear
right
Entrance/exit
lamp, rear left or
right door (as of
12.99)
Driver door or
front passenger
door openedXXX
Rear left door
or rear right
door opened XXX
Central
locking
unlockedXX XX
Ignition "Off"XX XX
Crash
recognitionXX XX
Control of interior lighting switch-on time,
function GF82.20-P-
3001GH
Dimming interior lighting, function GF82.20-P-
3002GH
Control of rear dome lamp, function GF82.20-P-
4005GH
Rotary tumbler microswitch, location/purpose/
design/function GF82.20-P-
4105GH
Locking with transmitter key, functionUp to 11/99GF80.20-P-
3005GH
Arrangement/purpose/design/function of All-
Activity-Module (AAM)Up to 11/99GF54.21-P-
4100GH
Arrangement/purpose of Extended-Activity-
Module GF54.21-P-
4106GH
Supplemental restraint system (SRS), functionUp to 11/99GF91.60-P-

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 34 © 2006 Mitchell Repair Information Company, LLC.

CONTROL OF OPERATING PERIOD OF INTERIOR LIGHTS, FUNCTION - GF82.20-P-3001GH
MODEL 163
The switch-on time for the interior lights is controlled by the all-activity module (AAM) (N10) . All lights are
faded off.
When the doors are open the corresponding lamps are switched off after 30 min.
After closing the last front door or last rear door the corresponding lights are switched off after 10 s.
After recognition of a crash the interior lights are switched back off after 30 min.
When the ignition is switched on all of the lights are switched off immediately.

Lights switched on manually are not switched off by the AAM
SWITCHING OFF INTERIOR LIGHTS WITH FADE-OFF FEATURE, FUNCTION - GF82.20-P-3002GH
MODEL 163
The interior lights are faded on and off by the all-activity module (AAM) (N10) . For this purpose the lamps
are actuated by the AAM with a square wave voltage. The frequency of the square wave voltage is 122 Hz and
remains constant. Only the on/off ratio of the square wave voltage is changed during fade on from 0 to 100 %
within 2.5 s. When fading off the on/off ratio is reduced from 100 % to 0 % within 2.5 s.
ACTUATING ENTRANCE/EXIT LAMPS, FUNCTION - GF82.20-P-4004GH
0002GH
As of 12/99GF91.60-P-
0002GI
Switching off interior
lights with face-off
feature GF82.20-P-3002GH
Switching interior lights
on/off manually, function GF82.20-P-2009GH
Switching interior lights
on/off automatically,
function GF82.20-P-2010GH
All-activity module
(AAM) GF54.21-P-4100GH
All-activity module
(AAM) GF54.21-P-4100GH

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:04 PMPage 35 © 2006 Mitchell Repair Information Company, LLC.