1997 MERCEDES-BENZ ML320 audio

CONTENTS - AUDIO 30 APS DIAGNOSIS - AD82.61-P-1001AZ
MODEL 163,168,170, 208, 210 with CODE (353) Audio 30 APS
AUDIO 30 APS DIAGNOSIS TOOLS - AD82.61-P-2001-01A
Fig. 123: Identifying Electrical Connection Set (201 589 00 99 00)
system, radio (RD)
11Actuation for automatic
antenna, testing electrical
system, radio (RD)only AD82.60-P-6000-08B
12Speed-sensistive loudness
control, testing electrical
system, radio (RD)except model 163AD82.60-P-6000-09A
13Radio illumination, testing
electrical system, radio (RD) AD82.60-P-6000-10A
14Radio mute circuit, testing
electrical system, radio (RD) AD82.60-P-6000-11A
I 9.4 [] 11Audio 30 APS diagnosis,
basic knowledge AD82.61-P-2001A
I 9.4 [] 12Audio 30 APS diagnosis,
function check AD82.61-P-3001A
I 9.4 [] 13Audio 30 APS diagnosis,
DTC memory AD82.61-P-4002A
I 9.4 [] 14Audio 30 APS diagnosis,
troubleshooting AD82.61-P-5001A
I 9.4 [] 21Audio 30 APS, testing
electric system AD82.61-P-6001A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 213 © 2006 Mitchell Repair Information Company, LLC.

AUDIO 30 APS DIAGNOSIS, BASIC KNOWLEDGE - AD82.61-P-2001A
MODEL 163,168,170, 208, 210 with CODE (353) Audio 30 APS
Used:Tread depth less than 5 mm

In order to avoid damage
to control modules,
connectors must only be
disconnected or
connected with "terminal
15R:OFF "

Local or atmospheric
influences can cause
disruption to radio or
satellite reception.
Satellite reception is
possible only in the open
air.
Position finding with
assistance of global
positioning system data
(in degrees of longitude
and latitude) takes place
within a period of 1 to
20min after "ignition: ON
".
The audio 30 APS is a
navigation system with
integrated radio and CD
player and . It also
provides an interface for
external audio
components via a digital
data bus (D2B). Existing
DMNL deals mainly with
navigation system.
Diagnosis of the
following systems: radio,
D2B, loudspeaker
system (LS), CD
changer and sound
system can be extracted
from the appropriate
DMNL.
Audio 30 APS operating GF82.61-P-0002-03A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:08 PMPage 216 © 2006 Mitchell Repair Information Company, LLC.

AUDIO 30 APS DIAGNOSIS, FUNCTION CHECK - AD82.61-P-3001A
MODEL 163,168,170, 208, 210 with CODE (353) Audio 30 APS
notes
Audio 30 APS location of
componentsModel 163GF82.61-P-0002-01D
Model 168GF82.61-P-0002-01B
Model 170GF82.61-P-0002-01A
Models 208, 210GF82.61-P-0002-01C
Location and assignment
of cable and plug
connectionsModel 163GF00.19-P-1000E
Model 168GF00.19-P-1000GC
Model 170GF00.19-P-1000B
Model 208GF00.19-P-1000D
Model 210GF00.19-P-1000A
Overview of electrical
wiring diagramsModel 163PE82.00-P-1100E
Model 168PE82.00-P-1100GC
Model 170PE82.00-P-1100B
Model 208PE82.00-P-1100D
Model 210PE82.00-P-1100A
Connection and use of
test equipment AD00.00-P-1000AZ
Diagnostic tools, Audio
30 APS AD82.61-P-2001-01A
Variant coding, radio and
navigation unit AD82.61-P-2001-03A
Connector assignment,
radio and navigation unit AD82.61-P-2001-02A
Audio 30 APS diagnosis, basic
knowledge AD82.61-P-2001A
See specified diagnosis
manuals for function checks on
the following systems: radio
(RD), AM/FM antenna systems
(ATS) and loudspeaker system
(LSA).
Fuses okay
Battery voltage 11-14 V
Function check
Scope of test Action/prerequisites Nominal value Possible cause /

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:08 PMPage 217 © 2006 Mitchell Repair Information Company, LLC.

AUDIO 30 APS DIAGNOSIS, DTC MEMORY - AD82.61-P-4002A
MODELS 163,168,170, 208, 210 with CODE (353) Audio 30 APS
Audio 30 APS
diagnosis, previous
knowledge AD82.61-P-2001A
Connect hand-held-
tester (HHT), read out
diagnostic trouble
code memoryModel 163 up to 31.8.01, 168AD00.00-P-2000-
03C
Models 170, 208, 210AD00.00-P-2000-
03A
Communication
between the HHT and
all other D2B
components also
takes place via the
diagnostic interface
of the radio and
navigation unit
(A2/56) .
ForDTC's affecting
the digital data bus
(D2B) , theCD
changer (A2/6) and
the sound system ,
remedy measures are
given in the
corresponding
diagnosis manuals.
See also: Information/Communication
Diagnosis Manual Index 13.1 Digital
data bus (D2B)
See also: Information/Communication
Diagnosis Manual Index 6.1 Compact
disc player with CD changerAD82.00-P-1000AZ
AD82.64
-P-1000AZ
Fuses okay
Battery voltage 11-
14V
The RDS data
evaluation is
deactivated during
HHT diagnosis.
Diagnostic trouble
code memory
DTC Possible cause Note Remedy
No fault codeNo fault detectedNevertheless if there is a complaint: ?
Audio 30 APS diagnosis,
troubleshootingAD82.61-P-5001A
B1000Internal error in radio
and navigation unit A2/56

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:08 PMPage 219 © 2006 Mitchell Repair Information Company, LLC.

AUDIO 30 APS DIAGNOSIS, TROUBLESHOOTING - AD82.61-P-5001A
MODEL 163,168,170, 208, 210 with CODE (353) Audio 30 APS
GPS antenna
splitter (A2/57) or
lead defective
B1763Excessive
temperature or
reading error of CD
drive of radio and
navigation unit
(A2/56) Remove CD-ROM
from drive and check
for contamination
and damage. A2/56
B1765Gyrosensor defective A2/56
N1111
N1112
N1113
N1114
N1115
N1116
N1117
N1118Fiber optic cable
defective, Individual
D2B units defective
or power supply for
individual D2B unitsSee also: ?
Information/Communication Diagnosis
Manual Index 13.1 Digital data bus
(D2B)Model 168, 170,
208, 210
AD82.00-P-4000A
N1140Only on model 208,
210:
DTC in CAN
connection between
instrument cluster
(A1) and radio and
navigation unit
(A2/56) The radio and navigation unit
(A2/56) is connected to the
instrument cluster (A1)via a separate
CAN bus.
DTC memory for instrument cluster
(A1) CAN line between
A1 and A2/56
N1141Nominal-actual
configuration of D2B
ring variesSee also: ?
Information/Communication Diagnosis
Manual Index 13.1 Digital data bus
(D2B)Reconfigure system
AD82.00-P-4000A
N1250CD changer
Excess temperature Lower temperature
inside vehicle
N1251CD changer
CD reading error Check CD changer
N1252CD changer
CD magazine error Check CD magazine
N1253CD changer
Hardware error
(mechanical) Check hardware
components and
replace if necessary
N1254CD changer
Insufficient
temperature Heating passenger
compartment

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:08 PMPage 221 © 2006 Mitchell Repair Information Company, LLC.

Audio 30 APS operating
notes GF82.61-P-0002-03A
Audio 30 APS location of
componentsModel 163GF82.61-P-0002-01D
Model 168GF82.61-P-0002-01B
Model 170GF82.61-P-0002-01A
Models 208, 210GF82.61-P-0002-01C
Audio 30 APS diagnosis,
previous knowledge AD82.61-P-2001A
Battery voltage 11-14V
Troubleshooting
Complaint Cause Note Remedy
Radio and navigation
unit (A2/56) completely
inoperativeFuse in A2/56, Voltage
supply for A2/56, Defect at
navigation CD-ROM,
A2/56 AD82.61-P-6001-01A
No communication
possible between Hand-
Held Tester (HHT) and
Audio 30 APSK line, Radio and
navigation unit (A2/56) AD82.61-P-6001-02A
Navigation inoperative Navigation CD-ROM is not
loaded or is incorrectly
loaded or incorrect /
defective CD-ROM
Radio and navigation unit
(A2/56) Load navigation CD,
refer to:
GF82.61
-P-0002-03A
Destination finding
system messages are
given too early or too late
(e.g. "please turn right")Check wheel calibration
and variant coding AD82.61-P-2001-03A
The expected arrival
time is not correctTime on radio and
navigation unit (A2/56) is
incorrectly set Actuate "NAV"
pushbutton and activate
"CLOCK" menu, set
time
Navigation is defective
or impreciseCheck variant coding and
wheel calibration,
Reversing signal,
Wheel speed signal,
Models 163, 168, 208.3,
210:
Cellular telephone and GPS
roof antenna (A2/49),
Models 170, 208.4:
GPS rear antenna
(A2/23a2) Models 163, 168, 170
Models 208, 210Refer to:
AD82.61
-P-2001-03A
AD82.61
-P-6001-04A
AD82.61-P-6001-04B
AD82.61
-P-6001-03A
AD82.61-P-6001-05A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:08 PMPage 222 © 2006 Mitchell Repair Information Company, LLC.

RADIO AND NAVIGATION UNIT, POWER SUPPLY, CHECKING ELECTRICAL SYSTEM, AUDIO 30 APS - AD82.61-P-
6001-01A
Radio and navigation unit
(A2/56)
No reception of GPS
data Antenna cable or
Model 163:
Cellular telephone and GPS
roof antenna (A2/49) or
cellular telephone and GPS
antenna splitter (A2/57)
Models 168, 208.3, 210:
Cellular telephone and GPS
roof antenna (A2/49)
Models 170, 208.4:
GPS rear antenna
(A2/23a2)
Radio and navigation unit
(A2/56) On model 163 only
one antenna cable (for
telephone and GPS)
leads to A2/49. A
defective antenna cable
would therefore effect a
telephone, if connected.Model 163
AD82.61
-P-6001-05B
Models 168,
170,208,210
AD82.61-P-6001-05A
Radio or loudspeaker
functional faults and poor
sound with voice output Loudspeaker system or
amplifier outputs of radio
and navigation unit
(A2/56). Only with sound
system (code 810):
Left/right audio power
amplifier (N40/3)Antenna amplifier test
can be carried out using
HHT.Refer to DMNL
information /
communication
Index 3 (RD)
Index 5 (LS)
Voice output is
fragmentary or
inoperative, but audio
signal replay (e.g. CD
player) functions without
complaint.Voice in RAM of
navigation computer is
partly erased as a result of
an interruption in voltage
supply.
Data fault on navigation
CD-ROM
Radio and navigation unit
(A2/56) Avoid excessive
shaking while loading
voice on A2/56.Replace CD-ROM
Illumination of radio and
navigation unit (A2/56)
inoperative (with terminal
58d, ON)Terminal 58d signal is not
on radio and navigation
unit (A2/56) .
On models 208, 210,
terminal 58d is not
connected, because A2/56
is connected to A1 via
CAN. AD82.61-P-6001-06A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:08 PMPage 223 © 2006 Mitchell Repair Information Company, LLC.

Fig. 126: Radio And Navigation Unit, Power Su pply, Checking Electrical System, Audio 30 APS
HHT INTERFACE, TESTING, ELECTRICAL SYSTEM, AUDI O 30 APS - AD82.61-P-6001-02A
Fig. 127: HHT Interface, Testing, Electrical System, Audio 30 APS
AUDIO 30 APS TEST OF ELECTR ICAL SYSTEM WHEEL SPEED SIGNAL - AD82.61-P-6001-03A
&(AD42.45-P-1002BZ)

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electr ical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:08 PMPage 224 © 2006 Mitchell Repair Information Company, LLC.