Nissan Murano Z51 (2008 year). Manual

AUDIO SYSTEM

AV-13

< FUNCTION DIAGNOSIS >

[BASE AUDIO]

Component Parts Location

INFOID:0000000003415158

Component Description

INFOID:0000000003415159

Front squawker RH

Front squawker LH

Front door speaker LH

Rear door speaker LH

Antenna base (antenna amp.)

Rear door speaker RH

Front door speaker RH

Steering switch

Audio unit

10. Audio display unit

JSNIA1098ZZ

Part name

Description

AUDIO UNIT

• Has radio function and CD playing function.
• Sound signals are output to each speaker.

AUDIO DISPLAY UNIT

Display images are controlled by AV communication from audio unit.

FRONT DOOR SPEAKER

• Outputs sound signals from audio unit.
• Outputs sound (mid and low range).

REAR DOOR SPEAKER

• Outputs sound signals from audio unit.
• Outputs sound (mid and low range).

FRONT SQUAWKER

• Outputs sound signals from audio unit.
• Outputs sound (high and mid range).

STEERING SWITCH

Steering switch signals (operation signals) are output to audio unit.

ANTENNA BASE

An antenna base integrated with radio antenna amp. is adopted.

ANTENNA AMP.

• Radio waves received by rod antenna are amplified and transmitted to audio

unit.

• Power (antenna amp. ON signal) is supplied from audio unit.

Revision: 2008 October

2009 Murano

AV-14

< FUNCTION DIAGNOSIS >

[BASE AUDIO]

DIAGNOSIS SYSTEM (AUDIO UNIT)

DIAGNOSIS SYSTEM (AUDIO UNIT)

Diagnosis Description

INFOID:0000000003465356

Self-diagnosis mode can perform the following items.
• Versions display
• Channel check diagnosis
• Key check diagnosis
• AV communication diagnosis

VERSIONS DISPLAY FUNCTION

Turn ignition switch ON.

Turn the audio unit off.

While pressing “1” button, turn volume control dial clockwise or
counterclockwise for 30 clicks or more.

Diagnosis default screen of audio display unit is displayed.
NOTE:
Diagnosis default screen = All icons and segments of the audio display unit are turned on.

Pressing the AUDIO switch briefly displays the version display mode. Pressing the AUDIO switch briefly
switches to each version display. Pressing and holding the AUDIO switch when displaying each software
version returns to the diagnosis default screen.

Version display item

Self-diagnosis mode is canceled when the ignition switch is turned OFF.

CHANNEL CHECK DIAGNOSIS FUNCTION

Turn ignition switch ON.

Turn the audio unit off.

JSNIA1143GB

Mode

Description

Versions display

Software V######

Audio unit software version is displayed.

Hardware V######

Audio unit hardware version is displayed.

CD Mech V######

Audio unit CD mechanism version is displayed.

EEPROM V######

Audio unit EEPROM version is displayed.

Disp SW V######

Display unit software version is displayed.

Disp HW V######

Display unit hardware version is displayed.

SDARS V######

Audio unit SDARS version is displayed.
NOTE:
“VFFFFFF” is displayed when SRARS is not available.

Revision: 2008 October

2009 Murano

DIAGNOSIS SYSTEM (AUDIO UNIT)

AV-15

< FUNCTION DIAGNOSIS >

[BASE AUDIO]

While pressing the “1” button, turn the volume control dial clock-
wise or counterclockwise for 30 clicks or more.

The diagnosis default screen of audio display unit is displayed.
NOTE:
Diagnosis default screen = All icons and segments of the audio display unit are turned on.

Turning the TUNE/FOLDER dial clockwise displays the channel check mode. Pressing and holding the
AUDIO switch during each channel check or waiting approximately 1 second after finishing all channel
checks returns to the diagnosis default screen.

Channel check item

Self-diagnosis mode is canceled when the ignition switch is turned OFF.

KEY CHECK DIAGNOSIS FUNCTION

Turn ignition switch ON.

Turn the audio unit off.

While pressing the “1” button, turn the volume control dial clock-
wise or counterclockwise for 30 clicks or more.

The diagnosis default screen of audio display unit is displayed.
NOTE:
Diagnosis default screen = All icons and segments of the audio display unit are turned on.

Turning the TUNE/FOLDER dial counterclockwise displays the key check mode, and the pressed switch
name is shown. Pressing and holding the AUDIO switch during the key check returns to the diagnosis
default screen.

JSNIA1143GB

Mode

Description

Channel check

Channel Check
Front Left

Connection of a speaker can be confirmed by test tone.

Channel Check
Front Right

Channel Check
Rear Right

Channel Check
Rear Left

JSNIA1143GB

Revision: 2008 October

2009 Murano

AV-16

< FUNCTION DIAGNOSIS >

[BASE AUDIO]

DIAGNOSIS SYSTEM (AUDIO UNIT)

Key check item (audio unit)

Key check item (steering switch)

Self-diagnosis mode is canceled when the ignition switch is turned OFF.

AV COMMUNICATION DIAGNOSIS FUNCTION

Turn ignition switch ON.

Turn the audio unit off.

While pressing the “6” button, turn the volume control dial clock-
wise or counterclockwise for 30 clicks or more.

Returns to diagnosis default screen and displays “AV DIAGNOSIS”.

Mode

Display item

Switch name

Key check

Preset button “1” switch

Preset button “2” switch

Preset button “3” switch

Preset button “4” switch

Preset button “5” switch

Preset button “6” switch

POWER

“ON·OFF” switch

VOLUME up

“VOL up” switch

VOLUME down

“VOL down” switch

AM·FM

“AM·FM” switch

DISC

“DISC” switch

AUX

“AUX” switch

AUDIO

“AUDIO” switch

TUNE/FOLDER up

“TUNE/FOLDER up” switch

TUNE/FOLDER down

“TUNE/FOLDER up” switch

DISP CLOCK

“DISP CLOCK” switch

SCAN

“SCAN” switch

RPT/RDM

“RPT RDM” switch

SEEK/TRACK up

“SEEK CAT” switch

SEEK/TRACK down

“TRACK” switch

LOAD

“LOAD” switch

EJECT

“EJECT” switch

Mode

Display item

Switch name

Key check

STR SOURCE

“SOURCE” switch

STR VOL UP

“VOL up” switch

STR VOL DOWN

“VOL down” switch

STR UP

“MENU up” switch

STR DOWN

“MENU down” switch

JSNIA1144GB

Revision: 2008 October

2009 Murano

DIAGNOSIS SYSTEM (AUDIO UNIT)

AV-17

< FUNCTION DIAGNOSIS >

[BASE AUDIO]

Pressing the AUDIO switch briefly displays the AV communication diagnosis mode. Pressing the AUDIO
switch briefly again switches to each AV communication display.

AV communication diagnosis item

Pressing the SEEK TRACK up switch displays the confirmation screen of “delete error record”. Press the
SEEK TRACK down switch if returning from RECORD DEL YES? to RECORD DEL NO?
The item is automatically determined approximately 6 seconds after it is displayed. Then the display
returns to AV TROUBLE DEL display item.

Self-diagnosis mode is canceled when the ignition switch is turned OFF.

Display item

Description

AV communication item

Current

Past

TRANSMIT

OK / UN

OK / 0 –39

The communication condition and error counter from the audio unit to
the audio display unit are displayed.

DISP

OK / UN

OK / 0 –39

The communication condition and error counter from the audio display
unit to the audio unit.

DISP MPDT

OK / UN

OK / 0 –39

NO HISTORY BTHF

—

Not used.

AV TROUBLE DEL

—

The error record can be deleted.

Display item

Description

RECORD DEL NO?

Does not delete error record.

RECORD DEL YES?

Deletes error record.

Revision: 2008 October

2009 Murano

AV-18

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

POWER SUPPLY AND GROUND CIRCUIT

COMPONENT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

AUDIO UNIT

AUDIO UNIT : Diagnosis Procedure

INFOID:0000000003468501

CHECK FUSE

Check for blown fuses.

Is the inspection result normal?

YES

>> GO TO 2.

>> Be sure to eliminate the cause of malfunction before installing new fuse.

CHECK POWER SUPPLY CIRCUIT

Check voltage between audio unit harness connectors and ground.

Is the inspection result normal?

YES

>> INSPECTION END

>> Check harness between audio unit and fuse.

Power source

Fuse No.

Battery

Ignition switch ACC or ON

Signal name

Connector No.

Terminal No.

Ignition switch position

Value (Approx.)

Battery power supply

M46

OFF

Battery voltage

ACC power supply

ACC

Revision: 2008 October

2009 Murano

STEERING SWITCH SIGNAL A CIRCUIT

AV-19

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

STEERING SWITCH SIGNAL A CIRCUIT

Description

INFOID:0000000003468488

Transmits the steering switch signal to audio unit.

Diagnosis Procedure

INFOID:0000000003468489

CHECK STEERING SWITCH SIGNAL A CIRCUIT

Disconnect audio unit connector and spiral cable connector.

Check continuity between audio unit harness connector and spiral cable harness connector.

Check continuity between audio unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair harness or connector.

CHECK SPIRAL CABLE

Check spiral cable.
Is the inspection result normal?

YES

>> GO TO 3.

>> Replace spiral cable.

CHECK AUDIO UNIT VOLTAGE

Connect audio unit connector and spiral cable connector.

Turn ignition switch ON.

Check voltage between audio unit harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 4.

>> Replace audio unit.

CHECK STEERING SWITCH

Turn ignition switch OFF.

Check steering switch. Refer to

AV-20, "Component Inspection"

Is the inspection result normal?

YES

>> INSPECTION END

>> Replace steering switch.

Audio unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M46

M33

Existed

Audio unit

—

Continuity

Connector

Terminal

M46

Ground

Not existed

(+)

(

−

)

Voltage

Audio unit

Connector

Terminal

Connector

Terminal

M46

Approx 5.0 V

Revision: 2008 October

2009 Murano

AV-20

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

STEERING SWITCH SIGNAL A CIRCUIT

Component Inspection

INFOID:0000000003468490

Measure the resistance between the steering switch connector ter-
minals.

Standard

JSNIA1145GB

Steering switch

Condition

Resistance

Ω

Con-

nector

Termi-

nals

Con-

nector

Termi-

nal

M303

SEEK DOWN switch
ON

315 – 327

SEEK UP switch ON

119 – 123

SOURCE switch ON

VOL UP switch ON

119 – 123

VOL DOWN switch ON

Revision: 2008 October

2009 Murano

STEERING SWITCH SIGNAL B CIRCUIT

AV-21

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

STEERING SWITCH SIGNAL B CIRCUIT

Description

INFOID:0000000003468491

Transmits the steering switch signal to audio unit.

Diagnosis Procedure

INFOID:0000000003468492

CHECK STEERING SWITCH SIGNAL B CIRCUIT

Disconnect audio unit connector and spiral cable connector.

Check continuity between audio unit harness connector and spiral cable harness connector.

Check continuity between audio unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair harness or connector.

CHECK SPIRAL CABLE

Check spiral cable.
Is the inspection result normal?

YES

>> GO TO 3.

>> Replace spiral cable.

CHECK AUDIO UNIT VOLTAGE

Connect audio unit connector and spiral cable connector.

Turn ignition switch ON.

Check voltage between audio unit harness connector terminals.

Is the inspection result normal?

YES

>> GO TO 4.

>> Replace audio unit.

CHECK STEERING SWITCH

Turn ignition switch OFF.

Check steering switch. Refer to

AV-22, "Component Inspection"

Is the inspection result normal?

YES

>> INSPECTION END

>> Replace steering switch.

Audio unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M46

M33

Existed

Audio unit

—

Continuity

Connector

Terminal

M46

Ground

Not existed

(+)

(

−

)

Voltage

Audio unit

Connector

Terminal

Connector

Terminal

M46

Approx 5.0 V

Revision: 2008 October

2009 Murano

AV-22

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

STEERING SWITCH SIGNAL B CIRCUIT

Component Inspection

INFOID:0000000003470180

Measure the resistance between the steering switch connector ter-
minals.

Standard

JSNIA1145GB

Steering switch

Condition

Resistance

Ω

Con-

nector

Termi-

nals

Con-

nector

Termi-

nal

M303

SEEK DOWN switch
ON

315 – 327

SEEK UP switch ON

119 – 123

SOURCE switch ON

VOL UP switch ON

119 – 123

VOL DOWN switch ON

Revision: 2008 October

2009 Murano

STEERING SWITCH SIGNAL GND CIRCUIT

AV-23

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

STEERING SWITCH SIGNAL GND CIRCUIT

Description

INFOID:0000000003468494

Transmits the steering switch signal to audio unit.

Diagnosis Procedure

INFOID:0000000003468495

CHECK STEERING SWITCH SIGNAL GND CIRCUIT

Turn ignition switch OFF.

Disconnect audio unit connector and spiral cable connector.

Check continuity between audio unit harness connector and spiral cable harness connector.

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair harness or connector.

CHECK SPIRAL CABLE

Check spiral cable.
Is the inspection result normal?

YES

>> GO TO 3.

>> Replace spiral cable.

CHECK GROUND CIRCUIT

Connect audio unit connector.

Check continuity between audio unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

>> Replace audio unit.

CHECK STEERING SWITCH

Turn ignition switch OFF.

Check steering switch. Refer to

AV-24, "Component Inspection"

Is the inspection result normal?

YES

>> INSPECTION END

>> Replace steering switch.

Audio unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M46

M33

Existed

Audio unit

—

Continuity

Connector

Terminal

M46

Ground

Existed

Revision: 2008 October

2009 Murano

AV-24

< COMPONENT DIAGNOSIS >

[BASE AUDIO]

STEERING SWITCH SIGNAL GND CIRCUIT

Component Inspection

INFOID:0000000003470181

Measure the resistance between the steering switch connector ter-
minals.

Standard

JSNIA1145GB

Steering switch

Condition

Resistance

Ω

Con-

nector

Termi-

nals

Con-

nector

Termi-

nal

M303

SEEK DOWN switch
ON

315 – 327

SEEK UP switch ON

119 – 123

SOURCE switch ON

VOL UP switch ON

119 – 123

VOL DOWN switch ON

Revision: 2008 October

2009 Murano

AUDIO UNIT

AV-25

< ECU DIAGNOSIS >

[BASE AUDIO]

ECU DIAGNOSIS

AUDIO UNIT

Reference Values

INFOID:0000000003468498

TERMINAL LAYOUT

PHYSICAL VALUES

JSNIA1180ZZ

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

–

Signal name

Input/

Output

(L)

(B)

Sound signal front LH

Output

Ignition

switch

Sound output.

(LG)

(Y)

Sound signal rear LH

Output

Ignition

switch

Sound output.

(W)

(SB)

Steering switch signal A

Input

Ignition

switch

Keep pressing SOURCE
switch.

0 V

Keep pressing

switch.

1.0 V

Keep pressing

switch.

2.0 V

Except for above.

5.0 V

(R)

Ground

ACC power supply

Input

Ignition

switch

ACC

—

Battery voltage

(BR)

(W)

Sound signal front RH

Output

Ignition

switch

Sound output.

SKIB3609E

Revision: 2008 October

2009 Murano

AV-26

< ECU DIAGNOSIS >

[BASE AUDIO]

AUDIO UNIT

(O)

(P)

Sound signal rear RH

Output

Ignition

switch

Sound output.

(SB)

Ground

Steering switch signal
ground

—

Ignition

switch

—

0 V

(Y)

(SB)

Steering switch signal B

Input

Ignition

switch

Keep pressing VOL DOWN
switch.

0 V

Keep pressing VOL UP
switch.

1.0 V

Except for above.

5.0 V

(Y)

Ground

Battery power supply

Input

Ignition

switch

OFF

—

Battery voltage

(G)

Ground

AV communication signal
(L)

Input/

Output

—

(R)

Ground

AV communication signal
(H)

Input/

Output

—

FM sub

Input

—

AM-FM main

Input

—

Ground

Antenna amp. ON signal

Output

Ignition

switch

ACC

—

12.0 V

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

–

Signal name

Input/

Output

SKIB3609E

Revision: 2008 October

2009 Murano

AUDIO UNIT

AV-27

< ECU DIAGNOSIS >

[BASE AUDIO]

Wiring Diagram — BASE AUDIO —

INFOID:0000000003465382

JCNWM1833GB

Revision: 2008 October

2009 Murano

Nissan Murano Z51 (2008 year). Manual - part 15