2007 INFINITI M35 audio

DIAGNOSIS SYSTEM
AV-243
[WITH MOBILE ENTERTAINMENT SYSTEM]
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AV
Revision: 2007 April2007 M35/M45
5. Select diagnosis item on “SELECT DIAG MODE” screen.
SELF-DIAG RESULTS
The self-diagnosis is started and self-diagnostic results are dis-
played by touching “START” after selecting “SELF-DIAG RESULTS”.

In CONSULT-II self-diagnosis, self-diagnostic results and error
history are displayed collectively.

The current malfunction indicates “CRNT”. The past malfunction
indicates “PAST”.

If DTC [U1000], [U1300] are detected, “0” is displayed at TIME.
If it is normal the next time ignition switch is ON of next time, add
1 to the TIME.
Display Item of Self-Diagnostic Results
Self-diagnostic results may be displayed simultaneously according to the cause. If some error items are dis-
played simultaneously, the detection of the cause can be performed by the combination of display items
BCIA0031E
SKIB3674E
Error item Description Possible cause/Action to take
CAN_COMM_CIRCUIT [U1000]CAN communication malfunction is
detectedPrint out the self-diagnostic results and go
to LAN-42, "
Precautions When Using
CONSULT-II" .
CONTROL UNIT (CAN) [U1010]CAN initial diagnosis malfunction is
detectedReplace AV (NAVI) control unit
Refer to AV-282, "
AV (NAVI) Control Unit"
CONTROL UNIT (AV) [U1310]AV communication circuit initial diagno-
sis malfunction is detectedReplace AV (NAVI) control unit
Refer to AV-282, "AV (NAVI) Control Unit"

AV COMM CIRCUIT [U1300]

SWITCH CONN [U1240]

VIDEO DIST CONN [U1246]

DVD DECK CONN [U1248]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]Malfunction is detected on communi-
cation circuit between AV (NAVI) con-
trol unit and video distributor

Communication circuit between AV
(NAVI) control unit and video distributor

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

Video distributor

AV COMM CIRCUIT [U1300]

SWITCH CONN [U1240]

DVD DECK CONN [U1248]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]Malfunction 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 [U1300]

SWITCH CONN [U1240]

AUDIO H/U CONN [U1249]

AMP CONN [U124E]

REAR CAMERA CONN [U1252]Malfunction 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-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-247
[WITH MOBILE ENTERTAINMENT SYSTEM]
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AV
Revision: 2007 April2007 M35/M45
Display Condition
SELECTION FROM MENU
When “SELECTION FROM MENU” is selected, the vehicle signal display can be selected. After that, the
selected vehicle signal condition is displayed when “START” is touched.
AV C O M M M O N I T O R
When “AV COMM MONITOR” is selected, “AV&NAVI C/U” and “AUDIO” are displayed.
AV&NAVI C/U

When “AV&NAVI C/U” is selected, the communication condition
from AV (NAVI) control unit to each unit and malfunction counter
are displayed.

Error counter displays OK if any malfunction is not detected in
the past. If the malfunction is detected, it displays 0. When turn-
ing the ignition switch ON, if it is normal, it displays 1. The upper
limit of the counter is 39.
Display ItemDis-
playVehicle status Remarks
VHCL SPD SIGON Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed. This is
normal. OFF Vehicle speed = 0 km/h (0 MPH)
PKB SIGON Parking brake is applied.
OFF Parking brake is released.
ILLUM SIGON Light switch ON
–
OFF Light switch OFF
IGN SIGON Ignition switch ON
–
OFF Ignition switch in ACC position
REV SIGON Selector lever in R position
Changes in indication may be delayed. This is
normal.
OFFOther than selector lever in R posi-
tion
Item to be selected Description
VHCL SPD SIG
As well as selecting “ALL SIGNALS” PKB SIG
ILLUM SIG
IGN SIG
REV SIG
Items Display (PRSNT) Error counter (PAST)
TRANSMIT DIAG OK / UNKWN OK / 0 - 39
PANEL SWITCH OK / UNKWN OK / 0 - 39
SW SECONDARY - -
RR CONTROL SW OK / UNKWN OK / 0 - 39
STEERING SW OK / UNKWN OK / 0 - 39
AUDIO OK / UNKWN OK / 0 - 39
SPEAKER AMP OK / UNKWN OK / 0 - 39
SIDE CAMERA - -
REAR CAMERA OK / UNKWN OK / 0 - 39
TV TUNER - -
DVD PLAYER OK / UNKWN OK / 0 - 39
VIDEO DIST OK / UNKWN OK / 0 - 39
ETC - -
SKIB4054E

AV-248
[WITH MOBILE ENTERTAINMENT SYSTEM]
DIAGNOSIS SYSTEM
Revision: 2007 April2007 M35/M45
AUDIO

When “AUDIO” is selected, the communication condition from
audio unit to each unit and malfunction counter are displayed.

Error counter displays OK if any malfunction is not detected in
the past. If the malfunction is detected, it displays 0. When turn-
ing the ignition switch ON, if it is normal, it displays 1. The upper
limit of the counter is 39.
ECU PART NUMBER
The part number of AV (NAVI) control unit is displayed.
FM MULTI - -
REMOTE CONT OK / UNKWN OK / 0 - 39Items Display (PRSNT) Error counter (PAST)
Items Display (Current) Error counter (Past)
TRANSMIT DG OK / UNKWN OK / 0 - 39
SPEAKER AMP OK/ UNKWN OK / 0 - 39
TV TUNER - -
DVD PLAYER OK / UNKWN OK / 0 - 39
MD DECK - -
CD CHANGER - -
MD CHANGER - -
SKIB4055E
SKIB3680E

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

TROUBLE DIAGNOSIS
AV-267
[WITH MOBILE ENTERTAINMENT SYSTEM]
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AV
Revision: 2007 April2007 M35/M45
2. CHECK AV COMM MONITOR
Select “AUDIO” of “AV COMM MONITOR”, and then check the displays of “TRANSMIT DG” and “DVD player”.
A or B
A >> Replace DVD player
B >> Replace audio unit.
HEADPHONE SOUND IS NOT OUTPUT (BOTH SIDES)
1. CHECK HEADPHONE AMP POWER SUPPLY AND GROUND CIRCUIT
Check headphone amp power supply and ground circuit.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK HARNESS BETWEEN VIDEO DISTRIBUTOR AND HEADPHONE AMP
1. Disconnect video distributor connector and headphone amp connector.
2. Check continuity between video distributor harness connector
(A) M208 terminal 60 and headphone amp harness connector
(B) R103 terminal 10.
3. Check continuity video distributor harness connector (A) M208
terminal 60 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK HEADPHONE AMP ON SIGNAL
1. Connect video distributor connector and headphone amp connector.
2. Turn ignition switch ON.
3. Turn the headphone mode ON.
4. Check voltage between video distributor harness connector
M208 terminal 60 and ground.
OK or NG
OK >> Replace headphone amp.
NG >> Replace video distributor.A
TRANSMIT DG
DVD PLAYER: OK
: UNKWN
B
TRANSMIT DG
DVD PLAYER: UNKWN
: OK
60 – 10 : Continuity should exist.
60 – Ground : Continuity should not exist.
SKIB4630E
60 – Ground : Approx. 4 V
SKIB4631E

TROUBLE DIAGNOSIS
AV-269
[WITH MOBILE ENTERTAINMENT SYSTEM]
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AV
Revision: 2007 April2007 M35/M45
4. CHECK MIC. SIGNAL
1. Check signal between AV (NAVI) control unit harness connector
M78 terminals 8 and 7.
OK or NG
OK >> Replace AV (NAVI) control unit.
NG >> Replace MIC.
THE SCREEN IS NOT SWITCHED BY PRESSING THE STEERING SWITCH
Refer to AV- 2 6 9 , "Steering Switch Cannot Be Operated" .
Steering Switch Cannot Be OperatedNKS004BC
NONE OF THE OPERATIONS WORK.
1. CHECK HARNESS
1. Check continuity between spiral cable harness connector (A)
M303 terminal 17 and audio unit harness connector (B) M76 ter-
minal 15.
OK or NG
OK >> Replace steering switch.
NG >> Check spiral cable. If the malfunction is detected, repair
the harness and connector.
“ENTER”, “MENU UP-DOWN”, AND “SOURCE” SWITCHES ARE NOT OPERATED
1. CHECK HARNESS
1. Check continuity between spiral cable harness connector (A)
M303 terminal 20 and audio unit harness connector (B) M76 ter-
minal 6.
2. Check continuity between steering switch harness connector (A)
M303 terminal 20 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check spiral cable. If the malfunction is detected, repair
the harness and connector. 8 – 7:Give a voice
SKIB4634EPKIB5037J
17 – 15 : Continuity should exist.
SKIB6278E
20 – 6 : Continuity should exist.
20 – Ground : Continuity should not exist.
SKIB4636E

AV-270
[WITH MOBILE ENTERTAINMENT SYSTEM]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
2. CHECK STEERING SWITCH SIGNAL A
1. Turn ignition switch ON.
2. Check voltage between audio unit harness connector M76 ter-
minals 6 and 15
OK or NG
OK >> Replace steering switch.
NG >> Replace audio unit.
“PTT/TEL”, “BACK”, AND “VOLUME CONTROL” SWITCHES ARE NOT OPERATED
1. CHECK HARNESS
1. Check continuity between spiral cable harness connector (A)
M303 terminal 16 and audio unit harness connector (B) M76 ter-
minal 16.
2. Check continuity between steering switch harness connector (A)
M303 terminal 16 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check spiral cable. If the malfunction is detected, repair
the harness and connector.
2. CHECK STEERING SWITCH SIGNAL B
1. Turn ignition switch ON.
2. Check voltage between audio unit harness connector M76 ter-
minals 16 and 15
OK or NG
OK >> Replace steering switch.
NG >> Replace audio unit.6 – 15 : Approx. 5 V
SKIB4637E
16 – 16 : Continuity should exist.
16 – Ground : Continuity should not exist.
SKIB4638E
16 – 15 : Approx. 5 V
SKIB4639E