Page 1689 of 4133

WIPER SYSTEM DIAGNOSIS TROUBLESHOOTING - AD82.30-P-5002GH
MODEL 163
Remedy
1 Tip wipingCombination switch (S4) in "Tip
wiping" positionWiper runs at slower
speed, while S4 is
operatedCables
AD82.30
-P-6002-
09GH
AD82.30
-P-6002-
02GH
2 Front screen wiping
Stage 1Combination switch (S4) in
"Wiping stage 1" positionWiper runs at slow
speedCables
AD82.30
-P-6002-
09GH
AD82.30
-P-6002-
02GH
3 Front screen wiping
Stage 2Combination switch (S4) in
"Wiping stage 2" positionWiper runs quicklyCables
AD82.30
-P-6002-
09GH
AD82.30
-P-6002-
02GH
4 Front screen
intermittent wipingCombination switch (S4) in
"Intermittent wiping" position.Wiper runs, an
interval of approx. 5
seconds follows each
complete wiping
processCables
Intermittent wiper
control
AD82.30
-P-6002-
01GH
5 Front screen
washingCombination switch (S4) in
"Washing" positionWindshield washer
pump (M5/1) operates
while S4 is actuated,
the wiper carries out
three more wiper
processes after the
switch is releasedCables
AD82.30
-P-6002-
10GH
AD82.30
-P-6002-
04GH
AD82.30
-P-6002-
02GH
6 Rear screen
intermittent wipeOperate "Rear screen intermittent
wipe" on rear window wiper/washer
switch (S78).Rear wiper runs, an
interval of approx. 5
seconds follows each
complete wiping
processCables
AD82.30
-P-6002-
06GH
AD82.30
-P-6002-
08GH
7 Rear screen washingOperate "Rear screen intermittent
wipe" on rear window wiper/washer
switch (S78).The rear window
washer pump (M5/3)
operates while S78 is
operated, the wiper
carries on wiping for
3 seconds after the
switch is released and
then stops in the rest
positionCables
AD82.30
-P-6002-
06GH
AD82.30
-P-6002-
08GH
AD82.30
-P-6002-
05GH
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 194 © 2006 Mitchell Repair Information Company, LLC.
Page 1690 of 4133

Location of components,
wiper systemFront screen&(GF82.30-P-0005-
01GH)
Rear screen&(GF82.30-P-0004-
01GH)
Battery voltage 11-14 V
Fuses in order
AAM voltage supply in
order AD54.21-P-6000-01GH
Troubleshooting
Complaint Possible cause Notes Remedy/Test step
Front wiper system
inoperativeCombination switch (S4) AD82.30-P-6002-09GH
Wiper motor (M6/1) AD82.30-P-6002-
02GH, cables
Front wiper does not
function when washing
front screenWiper motor (M6/1) AD82.30-P-6002-02GH
Windshield washer
pump does not function
when washing front
screenWindshield washer pump
(M5/1) AD82.30-P-6002-04GH
Front wiper does not
function in wiping stage
1 or stage 2Combination switch (S4) AD82.30-P-6002-09GH
Wiper motor (M6/1) AD82.30-P-6002-02GH
Front wiper does not
function with
intermittent wipingCombination switch (S4)
All-Activity Module (AAM)
(N10) AD82.30-P-6002-01GH
Front wiper does not
stop in rest position
when switched off.Cam-operated switch on
wiper motor (M6/1) AD82.30-P-6002-07GH
Rear wiper system
inoperativeRear window wiper/washer
switch (S78)
All-Activity Module (AAM)
(N10) AD82.30-P-6002-06GH
Rear window wiper
inoperativeRear window wiper/washer
switch (S78) AD82.30-P-6002-06GH
Rear window wiper motor
inoperative (M6/4) AD82.30-P-6002-08GH
Rear window wiper does
not function when
washing rear windowRear window wiper/washer
switch (S78) AD82.30-P-6002-06GH
Rear window wiper
cannot be switched offRear window wiper motor
relay (M6/4) AD82.30-P-6002-
03GH, cables
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 195 © 2006 Mitchell Repair Information Company, LLC.
Page 1691 of 4133
WIPER SYSTEM TEST OF ELECTRICAL SYSTEM INTERMITTENT WIPE - AD82.30-P-6002-01GH
Fig. 106: Wiper System Test Of Electrical System Intermittent Wipe
WIPER SYSTEM TEST OF ELECTRICAL SYSTEM WIPER MOTOR - AD82.30-P-6002-02GH
Cam-operated switch
Rear window wiper does
not complete a wiping
movementCam-operated switch on
rear window wiper motor
(M6/4) AD82.30-P-6002-03GH
Rear window washer
pump does not function
when washing rear
windowRear window wiper/washer
switch (S78) AD82.30-P-6002-06GH
Rear window washer pump
(M5/3) AD82.30-P-6002-05GH
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 196 © 2006 Mitchell Repair Information Company, LLC.
Page 1692 of 4133
Fig. 107: Wiper System Test Of Electrical System Wiper Motor
WIPER SYSTEM TEST OF ELE CTRICAL SYSTEM TAILGATE WIPER RELAY - AD82.30-P-6002-03GH
Fig. 108: Wiper System Test Of Elec trical System Tailgate Wiper Relay
WIPER SYSTEM TEST OF ELECTRICAL SYSTEM WASHER PUMP - AD82.30-P-6002-04GH
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electr ical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 197 © 2006 Mitchell Repair Information Company, LLC.
Page 1693 of 4133
Fig. 109: Wiper System Test Of Electrical System Washer Pump
WIPER SYSTEM TEST OF ELECT RICAL SYSTEM TAILGATE WASHER PUMP - AD82.30-P-6002-05GH
Fig. 110: Wiper System Test Of Elec trical System Tailgate Washer Pump
WIPER SYSTEM TEST OF ELECTRICAL SYSTEM REAR WINDOW WIPER/WASHER SW ITCH - AD82.30-P-6002-06GH
Fig. 111: Wiper System Test Of Electrical System Rear Window Wiper/Washer Switch
WIPER SYSTEM TEST OF ELECTRICAL SYSTEM CAM SW ITCH - AD82.30-P-6002-07GH
Scope of testMeasuring
instrument/
Test
connectionOperation/
RequirementSpecified
valuePossible
cause/Remedy
1.0 Front wiper
terminal 31 Combination
switch (S4) in ON, OFF
when passing Cables
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electr ical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 198 © 2006 Mitchell Repair Information Company, LLC.
Page 1694 of 4133

WIPER SYSTEM TEST OF ELECTRICAL SYSTEM TAILGATE WIPER MOTOR - AD82.30-P-6002-08GH
Fig. 112: Wiper System Test Of Electrical System Tailgate Wiper Motor
WIPER SYSTEM TEST OF ELECTRICAL SYSTEM WIPER POSITIONS COMBINATION SWITCH - AD82.30-P-6002-09GH
b
HHT actual
value"Wipe stage 1"
position.through rest
positionCam-operated switch
on wiper motor
(M6/1)
Scope of testMeasuring instrument/ Test
connectionOperation/
RequirementSpecified
valuePossible
cause/Remedy
1.0 Rest position
Contact 115 19Combination
switch (S4) in
rest position< 1 ohmsS4
1.1 Intermittent
wipe
Contact 215 19Combination
switch (S4) in
"Intermittent
wipe" position< 1 ohmsS4
1.2 Tip wipe
Contact15 18Combination
switch (S4) in
"Tip wipe"
position< 1 ohmsS4
1.3 Wipe stage 1
Contact15 18Combination
switch (S4) in
"Wipe stage 1"
pos.< 1 ohmsS4
1.4 Wipe stage 17
18Combination < 1 ohmsS4
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 199 © 2006 Mitchell Repair Information Company, LLC.
Page 1695 of 4133

WIPER SYSTEM TEST OF ELECTRICAL SYSTEM WASHER POSITION COMBINATION SWITCH - AD82.30-P-6002-10GH
WIPER SYSTEM TEST OF ELECTRICAL SYSTEM - AD82.30-P-6002GH
MODEL 163
2 Contactswitch (S4) in
"Wipe stage 2"
pos.
1.5 Intermittent
wipe
Contact 116 18Combination
switch (S4) in
"Intermittent
wipe" position< 1 ohmsS4
Scope of
testMeasuring instrument/ Test
connectionOperation/
RequirementSpecified
valuePossible
cause/Remedy
1.0 Wash
Contact20 18Combination
switch (S4) in
"Wash"
position< 1 ohmsS4
Connection and use of
test equipment AD00.00-P-1000AZ
Wiper system diagnosis,
previous knowledge AD82.30-P-2002GH
IAAM voltage supply in
order AD54.21-P-6000GH
IIBattery voltage 11-14V
IIIFuses in order
Ignition (terminal 15) ON
Risk of injury due to
getting jammed or
crushed in extreme cases
due to limbs being
severed by coming into
contact with the
windshield wiper
mechanismAlways remove the
ignition key when
working on the
windshield wiper
mechanism.AS82.30-Z-0001-01A
Testing
1Combination switch
wiper positions, testing
electrical system of wiper
system AD82.30-P-6002-09GH
2Combination switch wash
positions, testing AD82.30-P-6002-10GH
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 200 © 2006 Mitchell Repair Information Company, LLC.
Page 1696 of 4133

RADIO (RD) DIAGNOSIS, CONTENTS - AD82.60-P-1000AZ
MODEL 124, 129, 140, 163, 168, 170, 202, 208, 210 with MB radio
MODEL 129, 140, 168, 170, 202, 208, 210 with MB radio and navigation operating unit, APS
electrical system of wiper
system
3Intermittent wiper
control, testing electrical
system of wiper system AD82.30-P-6002-01GH
4Cam-operated switch,
testing electrical system
of wiper system AD82.30-P-6002-07GH
5Wiper motor, testing
electrical system of wiper
system AD82.30-P-6002-02GH
6Washer pump, testing
electrical system of wiper
system AD82.30-P-6002-04GH
7Trunk lid washer pump,
testing electrical system
of wiper system AD82.30-P-6002-05GH
8Trunk lid wiper relay,
testing electrical system
of wiper system AD82.30-P-6002-03GH
9Rear window
wiper/washer switch,
testing electrical system
of wiper system AD82.30-P-6002-06GH
10Trunk lid wiper motor,
testing electrical system
of wiper system AD82.30-P-6002-08GH
I 3.1 [] 11Radio (RD) diagnosis,
advanced information AD82.60-P-2000A
I 3.1 [] 12Radio (RD) diagnosis,
function check AD82.60-P-3000A
I 3.1 [] 13Radio (RD) diagnosis,
DTC memoryModels 129, 170, 202,
208, 210 as of 01.06.98
with digital data bus
(D2B)AD82.60-P-4000A
I 3.1 [] 14Radio (RD) diagnosis,
troubleshooting AD82.60-P-5000A
I 3.1 [] 21Radio (RD), testing AD82.60-P-6000A
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 201 © 2006 Mitchell Repair Information Company, LLC.