1997 MERCEDES-BENZ ML500 sat nav

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.

(A2/56)
B1010Radio and
navigation unit
(A2/56) switches off
due to undervoltage AD82.61-P-6001-
01A
B1011Radio and
navigation unit
(A2/56) switches off
due to overvoltage AD82.61-P-6001-
01A
B1088Only on model 208,
210:
Malfunction 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.
Read out instrument cluster (A1)
DTC memoryCAN line between
A1 and A2/56
B1734Model 163:
Wheel speed signal
from CAN bus
adapter missing
Model 168:
Signal from left rear
wheel speed sensor
(L6/3) missing
Model 170:
Signal from left front
wheel speed sensor
(L6/1) missing
Models 208, 210:
Signal from right
front wheel speed
sensor (L6/2)
missing The wheel speed signals are passed
to the radio and navigation unit
(A2/56) via a separate line and not
directly on CAN.
See also: Chassis Diagnosis Manual,
index 9 or index 10: ?
Index 10.4 ESP (Model 163)
Index 10.3 ESP (Model 168)
Index 10.2 ESP (Model 208, 210)
Index 10.5 ESP (Model 208)AD82.61-P-6001-
03A
AD42.45
-P-1002AZ

AD42.45-P-
1002GCZ
AD42.45-P-1000AZ
See STAR
DIAGNOSIS
B1738Models 168, 208.4:
GPS antenna
(A2/49a2) or lead
defective
Models 170, 208.3:
Rear GPS antenna
(A2/23a2) or lead
defective AD82.61-P-6001-
05A
Model 163:
Telephone and GPS
roof antenna (A2/49)
or telephone and The GPS and telephone radio
signals are transmitted between A2/49
and A2/57 via a common antenna
cable.AD82.61-P-6001-
05B

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:08 PMPage 220 © 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.

Fig. 129: Reverse Signal, Testing, Electrical System, Audio 30 APS
AUDIO 30 APS TEST OF ELECTRICAL SYSTEM GPS ANTENNA - AD82.61-P-6001-05B
Fig. 130: Audio 30 APS Test Of Electrical System GPS Antenna
RADIO AND NAVIGATION UNIT, ILLUMINATION, TESTING, ELECTRICAL SYSTEM, AUDIO SYSTEM 30 APS -
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 226 © 2006 Mitchell Repair Information Company, LLC.

Fig. 131: Radio And Navigation Unit, Illumination, Testing, Electrical System, Audio System 30 APS
AUDIO 30 APS, TESTING, ELECTRICAL SYSTEM - AD82.61-P-6001A
MODEL 163,168,170, 208, 210 with CODE (353) Audio 30 APS
Audio 30 APS, location
of componentsModel 163GF82.61-P-0002-01D
Audio 30 APS, location
of componentsModel 168GF82.61-P-0002-01B
Audio 30 APS, location
of componentsModel 170GF82.61-P-0002-01A
Audio 30 APS, location
of componentsModel 208, 210GF82.61-P-0002-01C
Audio 30 APS operating
instructions GF82.61-P-0002-03A
Audio 30 APS diagnosis,
basic knowledge AD82.61-P-2001A
Connector assignments
on radio and navigation
unit AD82.61-P-2001-02A
Battery voltage 11 -14 V
Testing
1Radio and navigation unit
power supply, testing,
electrical system, Audio
30 APS AD82.61-P-6001-01A
2HHT interface, testing,
electrical system, Audio
30 APS AD82.61-P-6001-02A
3Wheel speed signal,
testing, electrical system,
Audio 30 APS AD82.61-P-6001-03A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:08 PMPage 227 © 2006 Mitchell Repair Information Company, LLC.