2007 INFINITI M35 bose amp

DIAGNOSIS SYSTEM
AV-229
[WITH MOBILE ENTERTAINMENT SYSTEM]
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AV
Revision: 2007 April2007 M35/M45
DIAGNOSIS RESULTS
Check the applicable display in the following table, and then repair the malfunctioning parts.
Control Unit Is Red, Gray, or Yellow
Connection Line Between Units Is Yellow (Only 1 Line)
Switch color Description Possible malfunction/Action to take
Red AV (NAVI) control unit malfunction is detectedReplace AV (NAVI) control unit
Refer to AV-282, "
AV (NAVI) Control Unit"
Ye l l o w
(With NAVI)
Malfunction is detected on DVD-ROM drive pickup
lens in NAVI control unit

There is dirt and damage on the map disc

Map disc

NAVI control unit
Gray
(With NAVI)DVD-ROM not inserted is detected Insert map disc
Applicable parts Description Probable malfunction location
Control unit to Camera Cont.Camera-connection recognition signal malfunc-
tion is detected

Camera control unit power supply and ground
circuit

Camera-connection recognition signal circuit

AV (NAVI) Control unit

Camera control unit
Control unit to GPS Antenna GPS antenna connection malfunction is detected

GPS antenna feeder

GPS antenna

NAVI control unit
Control unit to DVD deck

DVD player power supply and ground circuit
malfunction is detected

Malfunction is detected on communication sig-
nal between DVD player and AV (NAVI) control
unit

DVD player power supply and ground circuit

DVD player

AV (NAVI) control unit
Control unit to Amplifier

BOSE amp power supply and ground circuit
malfunction is detected

Malfunction is detected on communication sig-
nal between BOSE amp and AV (NAVI) control
unit

BOSE amp power supply and ground circuit

BOSE amp

AV (NAVI) control unit
Control unit to Video Distrib-
utor

Video distributor power supply and ground cir-
cuit malfunction is detected

Malfunction is detected on communication sig-
nal between video distributor and AV (NAVI)
control unit

Video distributor power supply and ground cir-
cuit

Video distributor

AV (NAVI) control unit
Control unit to Front Display

Front display unit power supply and ground cir-
cuit malfunction is detected (The diagnosis
screen can be checked at rear display)

Malfunction is detected on communication cir-
cuit between front display unit and AV (NAVI)
control unit

Malfunction is detected on communication sig-
nal between front display unit and AV (NAVI)
control unit

Front display unit power supply and ground cir-
cuit

Front display unit

AV (NAVI) control unit
Control unit to Rear Switches

Rear control switch power supply and ground
circuit malfunction is detected

Malfunction is detected on communication sig-
nal between rear control switch and AV (NAVI)
control unit

Rear control switch power supply and ground
circuit

Rear control switch

AV (NAVI) control unit

AV-230
[WITH MOBILE ENTERTAINMENT SYSTEM]
DIAGNOSIS SYSTEM
Revision: 2007 April2007 M35/M45
Connection Line Between Units Is Yellow (2 or More Lines)
When 2 or more connection lines between control unit (AV control unit, NAVI control) and each unit are dis-
played in yellow, these communication system lines may be open or shorted. The malfunctioning parts can be
detected by the combination of the connection lines displayed in yellow.
Control unit to Audio unit

Audio unit power supply and ground circuit mal-
function is detected

Malfunction is detected on communication cir-
cuit between audio unit and rear control switch
(Models with rear control switch)

Malfunction is detected on communication cir-
cuit between audio unit and BOSE amp (Mod-
els without rear control switch)

Malfunction is detected on communication sig-
nal between audio unit and AV (NAVI) control
unit

Audio unit power supply and ground circuit

Communication circuit between rear control
switch and audio unit

Audio unit

Rear control switch (with rear control switch)

BOSE amp (without rear control switch)

AV (NAVI) Control unit
Video distributor to Rear Dis-
play

Rear display unit power supply and ground cir-
cuit malfunction is detected

Malfunction is detected on communication cir-
cuit between video distributor and rear display
unit

Malfunction is detected on communication sig-
nal between video distributor and rear display
unit

Rear display unit power supply and ground cir-
cuit

Rear display unit

Video distributor

Communication circuit between video distribu-
tor and rear display unit Applicable parts Description Probable malfunction location
Applicable parts Description Probable malfunction location
Control unit to

Amplifier

Rear Switches

Audio unit

Malfunction is detected on communication cir-
cuit between multifunction switch and camera
control unit

Malfunction is detected on communication cir-
cuit between camera control unit and BOSE
amp

Communication circuit between multifunction
switch and camera control unit

Communication circuit between camera control
unit and BOSE amp

Multifunction switch

Camera control unit

BOSE amp
Control unit to

Amplifier

Audio unit

Malfunction is detected on communication cir-
cuit between multifunction switch and camera
control unit

Malfunction is detected on communication cir-
cuit between camera control unit and BOSE
amp

Communication circuit between multifunction
switch and camera control unit

Communication circuit between camera control
unit and BOSE amp

Multifunction switch

Camera control unit

BOSE amp
Control unit to

Rear Switches

Audio unitMalfunction is detected on communication circuit
between BOSE amp and rear control switch

Communication circuit between BOSE amp and
rear control switch

BOSE amp

Rear control switch

DIAGNOSIS SYSTEM
AV-235
[WITH MOBILE ENTERTAINMENT SYSTEM]
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Revision: 2007 April2007 M35/M45

AV COMM CIRCUIT

Switches Connection Error

DVD Deck Connection Error

Audio Unit Connection Error

Amplifier Connection Error

Rearview Camera Connection ErrorMalfunction is detected on communi-
cation circuit between video distributor
and DVD player

Communication circuit between video
distributor and DVD player

Video distributor

DVD player

AV COMM CIRCUIT

Switches Connection Error

Audio Unit Connection Error

Amplifier Connection Error

Rearview Camera Connection ErrorMalfunction is detected on communi-
cation circuit between DVD player and
multifunction switch

Communication circuit between DVD
player and multifunction switch

DVD player

Multifunction switch

AV COMM CIRCUIT

Audio Unit Connection Error

Amplifier Connection Error

Rearview Camera Connection ErrorMalfunction is detected on communi-
cation circuit between multifunction
switch and camera control unit

Communication circuit between multi-
function switch and camera control unit

Multifunction switch

Camera control unit

AV COMM CIRCUIT

Audio Unit Connection Error

Amplifier Connection ErrorMalfunction is detected on communi-
cation circuit between camera control
unit and BOSE amp

Communication circuit between camera
control unit and BOSE amp

Camera control unit

BOSE amp

AV COMM CIRCUIT

Audio Unit Connection ErrorWith rear control switch

Audio unit power supply and ground
circuit malfunction is detected

Malfunction is detected on communi-
cation circuit between BOSE amp
and rear control switch

Malfunction is detected on communi-
cation circuit between rear control
switch and audio unit

Malfunction is detected on communi-
cation signal between audio unit and
AV ( N AV I ) c o n t r o l u n i t

Communication circuit between BOSE
amp and rear control switch

Communication circuit between rear
control switch and audio unit

BOSE amp

Rear control switch

Audio unit

AV ( N AV I ) c o n t r o l u n i t
Without rear control switch

Audio unit power supply and ground
circuit malfunction is detected

Malfunction is detected on communi-
cation circuit between BOSE amp
and audio unit

Malfunction is detected on communi-
cation signal between audio unit and
AV ( N AV I ) c o n t r o l u n i t

Audio unit power supply and ground cir-
cuit

Communication circuit between BOSE
amp and audio unit

Audio unit

AV ( N AV I ) c o n t r o l u n i t

BOSE amp

AV COMM CIRCUIT

Video Distributor Connection Error

Video distributor power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between video distribu-
tor and AV (NAVI) control unit

Video distributor power supply and
ground circuit

Video distributor

AV ( N AV I ) c o n t r o l u n i t

AV COMM CIRCUIT

Rearview Camera Connection Error

Camera control unit power supply
and ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between camera con-
trol unit and AV (NAVI) control unit

Camera control unit power supply and
ground circuit

Camera control unit

AV ( N AV I ) c o n t r o l u n i t Error item Description Possible cause/Action to take

AV-236
[WITH MOBILE ENTERTAINMENT SYSTEM]
DIAGNOSIS SYSTEM
Revision: 2007 April2007 M35/M45

AV COMM CIRCUIT

Switches Connection Error

Multifunction switch power supply
and ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between multifunction
switch and AV (NAVI) control unit

Multifunction switch power supply and
ground circuit

Multifunction switch

AV (NAVI) control unit

AV COMM CIRCUIT

DVD Deck Connection Error

DVD player power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between DVD player
and AV (NAVI) control unit

DVD player power supply and ground
circuit

DVD player

AV (NAVI) control unit

AV COMM CIRCUIT

Amplifier Connection Error

BOSE amp power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between BOSE amp
and AV (NAVI) control unit

BOSE amp power supply and ground
circuit

BOSE amp

AV (NAVI) control unit
Front Display Connection Error

Front display unit power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation circuit between front display
unit and AV (NAVI) control unit

Malfunction is detected on communi-
cation signal between front display
unit and AV (NAVI) control unit

Front display unit power supply and
ground circuit

Communication circuit between front
display unit and AV (NAVI) control unit

Front display unit

AV (NAVI) control unit
Rear Display Connection Error

Rear display unit power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation circuit between rear display
unit and video distributor

Malfunction is detected on communi-
cation signal between rear display
unit and video distributor

Rear display unit power supply and
ground circuit

Rear display unit

Video distributor

Communication circuit between rear
display unit and video distributor
GPS Antenna ErrorGPS antenna connection malfunction
is detected

GPS antenna feeder

GPS antenna

NAVI control unit
Camera Control Unit Connection ErrorCamera and connection recognition
signal circuit malfunction is detected

Camera-connection recognition signal
circuit

Camera control unit

AV (NAVI) control unit
FLASH-ROM Error Of Control UnitAV (NAVI) control unit malfunction is
detectedReplace AV (NAVI) control unit
Refer to AV-282, "
AV (NAVI) Control Unit"
Connection Of GyroNAVI control unit malfunction is
detectedReplace NAVI control unit
Refer to AV-282, "AV (NAVI) Control Unit"
GPS Communication Error
GPS malfunction is detectedIf the symptoms such as the GPS receipt
malfunction occur, intermittent malfunction
caused by strong radio interference may
be detected.
If the malfunction always occurs, replace
NAVI control unit. GPS ROM Error
GPS RAM Error
GPS RTC ErrorError item Description Possible cause/Action to take

AV-244
[WITH MOBILE ENTERTAINMENT SYSTEM]
DIAGNOSIS SYSTEM
Revision: 2007 April2007 M35/M45

AV COMM CIRCUIT [U1300]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]Malfunction is detected on communi-
cation circuit between multifunction
switch and camera control unit

Communication circuit between multi-
function switch and camera control unit

Multifunction switch

Camera control unit

AV COMM CIRCUIT [U1300]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

Malfunction is detected on communi-
cation circuit between camera con-
trol unit and BOSE amp
Communication circuit between camera
control unit and BOSE amp

Camera control unit

BOSE amp

AV COMM CIRCUIT [U1300]

AUDIO H/U CONN [U1249]With rear control switch

Audio unit power supply and ground
circuit malfunction is detected

Malfunction is detected on communi-
cation circuit between BOSE amp
and rear control switch

Malfunction is detected on communi-
cation circuit between rear control
switch and audio unit

Malfunction is detected on communi-
cation signal between audio unit and
AV (NAVI) control unit

Communication circuit between BOSE
amp and rear control switch

Communication circuit between rear
control switch and audio unit

BOSE amp

Rear control switch

Audio unit

AV (NAVI) control unit
Without rear control switch

Audio unit power supply and ground
circuit malfunction is detected

Malfunction is detected on communi-
cation circuit between BOSE amp
and audio unit

Malfunction is detected on communi-
cation signal between audio unit and
AV (NAVI) control unit

Audio unit power supply and ground cir-
cuit

Communication circuit between BOSE
amp and audio unit

Audio unit

AV (NAVI) control unit

BOSE amp

AV COMM CIRCUIT [U1300]

VIDEO DIST CONN [U1246]

Video distributor power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between video distribu-
tor and AV (NAVI) control unit

Video distributor power supply and
ground circuit

Video distributor

AV (NAVI) control unit

AV COMM CIRCUIT [U1300]

REAR CAMERA CONN [U1252]

Camera control unit power supply
and ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between camera con-
trol unit and AV (NAVI) control unit

Camera control unit power supply and
ground circuit

Camera control unit

AV (NAVI) control unit

AV COMM CIRCUIT [U1300]

SWITCH CONN [U1240]

Multifunction switch power supply
and ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between multifunction
switch and AV (NAVI) control unit

Multifunction switch power supply and
ground circuit

Multifunction switch

AV (NAVI) control unit

AV COMM CIRCUIT [U1300]

DVD DECK CONN [U1248]

DVD player power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between DVD player
and AV (NAVI) control unit

DVD player power supply and ground
circuit

DVD player

AV (NAVI) control unit Error item Description Possible cause/Action to take

DIAGNOSIS SYSTEM
AV-245
[WITH MOBILE ENTERTAINMENT SYSTEM]
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AV
Revision: 2007 April2007 M35/M45

AV COMM CIRCUIT [U1300]

AMP CONN [U124E]

BOSE amp power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation signal between BOSE amp
and AV (NAVI) control unit

BOSE amp power supply and ground
circuit

BOSE amp

AV ( N AV I ) c o n t r o l u n i t
FRONT DISP CONN [U1243]

Front display unit power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation circuit between front display
unit and AV (NAVI) control unit

Malfunction is detected on communi-
cation signal between front display
unit and AV (NAVI) control unit

Front display unit power supply and
ground circuit

Communication circuit between front
display unit and AV (NAVI) control unit

Front display unit

AV ( N AV I ) c o n t r o l u n i t
REAR DISP CONN [U1247]

Rear display unit power supply and
ground circuit malfunction is
detected

Malfunction is detected on communi-
cation circuit between rear display
unit and video distributor

Malfunction is detected on communi-
cation signal between rear display
unit and video distributor

Rear display unit power supply and
ground circuit

Rear display unit

Video distributor

Communication circuit between rear
display unit and video distributor
GPS ANTENNA CONN [U1244]GPS antenna connection malfunction
is detected

GPS antenna feeder

GPS antenna

NAVI control unit
CAMERA CONT CONN [U1250]Camera and connection recognition
signal circuit malfunction is detected

Camera-connection recognition signal
circuit

Camera control unit

AV ( N AV I ) c o n t r o l u n i t
Count Unit FLASH-ROM [U1200]AV (NAVI) control unit malfunction is
detectedReplace AV (NAVI) control unit
Refer to AV-282, "
AV (NAVI) Control Unit"
Gyro NO CONN [U1201]NAVI control unit malfunction is
detectedReplace NAVI control unit
Refer to AV-282, "AV (NAVI) Control Unit"
GPS COMM [U1204]
GPS malfunction is detectedIf the symptoms such as the GPS receipt
malfunction occur, intermittent malfunction
caused by strong radio interference may
be detected.
If the malfunction always occurs, replace
NAVI control unit. GPS ROM [U1205]
GPS RAM [U1206]
GPS RTC [U1207]Error item Description Possible cause/Action to take

AV-266
[WITH MOBILE ENTERTAINMENT SYSTEM]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
3. CHECK HORIZONTAL SYNCHRONIZING SIGNAL
Check signal between video distributor harness connector M206 ter-
minal 30 and ground.
OK or NG
OK >> Replace video distributor.
NG >> Replace rear display unit.
It Cannot Be Switched to DVD ModeNKS004B9
Refer to AV- 2 6 6 , "DVD SOUND IS NOT OUTPUT" .
Sound Is Not Output (Voice Guidance and TEL Voice Are Normal) NKS004BA
DVD AND AUDIO SOUND ARE NOT OUTPUT
1. CONSULT-II SELF-DIAGNOSIS
Perform “SELF-DIAG RESULT” of CONSULT-II and check the malfunction. Refer to AV- 2 4 3 , "
SELF-DIAG
RESULTS" .
OK or NG
OK >> GO TO 2.
NG >> Refer to AV- 2 4 3 , "
Display Item of Self-Diagnostic Results" .
2. CHECK AV COMM MONITOR
Select “AUDIO” of “AV COMM MONITOR”, and then check the displays of “TRANSMIT DG” and “SPEAKER
AMP”.
A or B
A >> Replace BOSE amp.
B >> Replace audio unit.
DVD SOUND IS NOT OUTPUT
1. CONSULT-II SELF-DIAGNOSIS
Perform “SELF-DIAG RESULT” of CONSULT-II and check the malfunction. Refer to AV- 2 4 3 , "
SELF-DIAG
RESULTS" .
OK or NG
OK >> GO TO 2.
NG >> Refer to AV- 2 4 3 , "
Display Item of Self-Diagnostic Results" . 30 – Ground:
SKIB4831E
SKIB0825E
A
TRANSMIT DG
SPEAKER AMP: OK
: UNKWN
B
TRANSMIT DG
SPEAKER AMP: UNKWN
: OK

AV-272
[WITH MOBILE ENTERTAINMENT SYSTEM]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Voice Guidance Is Not HeardNKS004BE
1. CHECK HARNESS BETWEEN AV (NAVI) CONTROL UNIT AND BOSE AMP
1. Disconnect AV (NAVI) control unit connector and BOSE amp connector.
2. Check continuity between AV (NAVI) control unit harness con-
nector (A) M78 terminals 12, 14 and BOSE amp harness con-
nector (B) B107 terminals 32, 12.
3. Check continuity between AV (NAVI) control unit harness con-
nector (A) M78 terminals 12, 14 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK VOICE GUIDANCE SIGNAL
1. Connect AV (NAVI) control unit connector and BOSE amp connector.
2. Turn ignition switch ON.
3. Push the voice button.
4. Check signal between AV (NAVI) control unit harness connector
M78 terminals 12 and 14.
OK or NG
OK >> Replace AV (NAVI) control unit.
NG >> Replace BOSE amp.12 – 32 : Continuity should exist.
14 – 12 : Continuity should exist.
12, 14 – Ground : Continuity should not exist.
SKIB4644E
12 – 14:
SKIB4645E
SKIB3609E