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.