Infiniti M35/M45 Y50. Manual - part 222

TROUBLE DIAGNOSIS

AV-265

[WITH MOBILE ENTERTAINMENT SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

AV

6. 

CHECK VERTICAL SYNCHRONIZING SIGNAL

Check signal between AV (NAVI) control unit harness connector
M210 terminal 52 and ground.

OK or NG

OK

>> Replace AV (NAVI) control unit.

NG

>> Replace video distributor.

DVD Operation Screen Is Not Displayed

NKS004B8

ONLY FRONT DISPLAY

Refer to 

AV-263, "Warning Message of Whether Rear View Image Is Rolling or Not Displayed"

 .

ONLY REAR DISPLAY

1. 

CHECK HARNESS BETWEEN VIDEO DISTRIBUTOR AND REAR DISPLAY UNIT

1.

Disconnect video distributor connector and rear display unit connector.

2.

Check continuity between video distributor harness connector
(A) M206 terminals 29, 30 and rear display unit harness connec-
tor (B) R102 terminals 19, 20. 

3.

Check continuity between AV (NAVI) control unit harness con-
nector (A) M206 terminals 29, 30 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair harness or connector.

2. 

CHECK VERTICAL SYNCHRONIZING SIGNAL

1.

Connect video distributor connector and rear display unit connector.

2.

Turn ignition switch ON.

3.

Check signal between video distributor harness connector M206
terminal 29 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Replace rear display unit.

52 – Ground:

SKIB4700E

SKIB3598E

29 – 19

: Continuity should exist.

30 – 20

: Continuity should exist.

29, 30 – Ground

: Continuity should not exist.

SKIB4829E

29 – Ground:

SKIB4830E

SKIB3598E

AV-266

[WITH MOBILE ENTERTAINMENT SYSTEM]

TROUBLE DIAGNOSIS

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 Mode

NKS004B9

Refer to 

AV-266, "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-243, "SELF-DIAG

RESULTS"

 .

OK or NG

OK

>> GO TO 2.

NG

>> Refer to 

AV-243, "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-243, "SELF-DIAG

RESULTS"

 .

OK or NG

OK

>> GO TO 2.

NG

>> Refer to 

AV-243, "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]

C

D

E

F

G

H

I

J

L

M

A

B

AV

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

AV-268

[WITH MOBILE ENTERTAINMENT SYSTEM]

TROUBLE DIAGNOSIS

Voice Activated Control System Is Not Activated

NKS004BB

THE SCREEN IS SWITCHED BY PRESSING THE STEERING SWITCH

1. 

VOICE MICROPHONE TEST

Turn “Voice Microphone Test” ON at Confirmation/Adjustment mode, and then check the sounds emitted from
the speaker. Refer to 

AV-238, "Voice Microphone Test"

 .

Is the sound output?

YES

>> Replace AV (NAVI) control unit.

NO

>> GO TO 2.

2. 

CHECK HARNESS BETWEEN AV (NAVI) CONTROL UNIT AND MIC.

1.

Turn ignition switch OFF.

2.

Disconnect AV (NAVI) control unit connector and MIC. connector.

3.

Check continuity between AV (NAVI) control unit harness con-
nector (A) M78 terminals 6, 7, 8 and MIC. harness connector (B)
R52 terminals 4, 2, 1.

4.

Check continuity between AV (NAVI) control unit  harness con-
nector (A) M78 terminals 6, 7,  8 and ground.

OK or NG

OK >> GO 

TO 

3.

NG

>> Repair harness or connector.

3. 

CHECK MIC. POWER SUPPLY

1.

Connect AV (NAVI) control unit  and MIC. connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV (NAVI) control unit harness connec-
tor M78 terminals 6 and 7. 

OK or NG

OK

>> GO TO 4.

NG

>> Replace AV (NAVI) control unit.

6 – 4

: Continuity should exist.

7 – 2

: Continuity should exist.

8 – 1

: Continuity should exist.

6, 7, 8 – Ground

: Continuity should not exist.

SKIB4632E

6 – 7

: Approx. 5 V

SKIB4633E