Nissan Murano Z50 (2003 year). Manual

INTEGRATED DISPLAY SYSTEM

AV-97

Revision; 2004 April

2003 Murano

Terminals and Reference Value for Display Unit

AKS004XW

Terminal

(Wire color)

Item

Signal

input/

output

Condition

Reference value

Example of

symptom

–

Ignition

switch

Operation

1 (Y)

Ground

Battery power
supply

Input

OFF

Battery voltage

System does not
work properly.

2 (P/B)

Ground

ACC power
supply

Input

ACC

Battery voltage

System does not
work properly.

3 (G)

Ground

Ignition signal

Input

Battery voltage

A/C operation is
not possible.
Vehicle informa-
tion setting is not
possible.

4 (R/L)

Ground

Illumination
signal

Input

OFF

Lighting switch is
ON (position 1).

Approx. 12V

Screen does not
switch between
daytime mode
and night-time
mode.

Turn lighting switch
OFF.

Approx. 0V

6 (B)

Ground

Approx. 0V

7 (V/W)

Ground

Vehicle
speed signal
(8-pulse)

Input

When vehicle speed
is approx. 40 km/h
(25 MPH)

Drive computer
item is not dis-
played correctly.

8 (R/G)

Ground

Audio TX

Output

Operate audio vol-
ume.

Audio does not
operate prop-
erly.

Ground

Shield

Approx. 0V

10 (R/Y)

Ground

Audio RX

Input

Operate audio vol-
ume.

Audio does not
operate prop-
erly.

11 (L/G)

Ground

Communica-
tion signal (+)

Input/

output

System does not
work properly.

Ground

Shield

Approx. 0V

PKIA1935E

SKIA4402E

SKIA4403E

SKIA0175E

AV-98

INTEGRATED DISPLAY SYSTEM

Revision; 2004 April

2003 Murano

Terminals and Reference Value for A/C and AV Switch

AKS004XX

13 (L/R)

Ground

Communica-
tion signal (-)

Input/

output

System does not
work properly.

14 (L)

CAN-H

16 (Y)

CAN-L

Terminal

(Wire color)

Item

Signal

input/

output

Condition

Reference value

Example of

symptom

–

Ignition

switch

Operation

SKIA0176E

Terminal

(Wire color)

Item

Signal

input/

output

Condition

Reference value

Example of

symptom

–

Ignition

switch

Operation

1 (Y)

Ground

Battery
power supply

Input

OFF

Battery voltage

System does not
work properly.

2 (P/B)

Ground

ACC power
supply

Input

ACC

Battery voltage

System does not
work properly.

3 (R/L)

Ground

Illumination
signal

Input

OFF

Lighting switch is
ON (position 1).

Approx. 12V

A/C and AV
switch illumina-
tion does not
come on when
lighting switch is
ON (position 1).

Turn lighting switch
OFF.

Approx. 0V

4 (R/W)

Ground

Illumination
control signal

Input

Illumination control
switch is operated
by lighting switch in
1st position.

Changes between approx. 0
and approx. 12V.

A/C and AV
switch illumina-
tion cannot be
controlled.

5 (B)

Ground

Approx. 0V

6 (L/G)

Ground

Communica-
tion signal (+)

Input/

output

System does not
work properly.

Ground

Shield

Approx. 0V

8 (L/R)

Ground

Communica-
tion signal (-)

Input/

output

System does not
work properly.

12 (R)

Ground

Remote con-
trol A

Input

Press MODE switch

Approx. 0V

Steering wheel
audio controls
do not function.

Press SEEK UP
switch

Approx. 0.75V

Press VOL UP
switch

Approx. 2V

Except for above

Approx. 5V

SKIA0175E

SKIA0176E

INTEGRATED DISPLAY SYSTEM

AV-99

Revision; 2004 April

2003 Murano

13 (G)

Ground

Remote con-
trol B

Input

Press POWER
switch

Approx. 0V

Steering wheel
audio controls
do not function.

Press SEEK DOWN
switch

Approx. 0.75V

Press VOL DOWN
switch

Approx. 2V

Except for above

Approx. 5V

14 (B/W)

Ground

Remote con-
trol ground

Approx. 0V

Steering wheel
audio controls
do not function.

16 (G/W)

Ground

Rear window
defogger
switch signal

Output

Press rear window
defogger switch

Approx. 0V

Rear window
defogger does
not operate.

Approx. 5V

Terminal

(Wire color)

Item

Signal

input/

output

Condition

Reference value

Example of

symptom

–

Ignition

switch

Operation

AV-100

INTEGRATED DISPLAY SYSTEM

Revision; 2004 April

2003 Murano

On Board Self-Diagnosis Function

AKS004XY

DESCRIPTION

●

Diagnosis function consists of the self-diagnosis mode performed automatically.

●

Self-diagnosis mode checks for connections between the units constituting this system, analyzes each
individual unit at the same time, and displays the results on the LCD screen.

DIAGNOSIS ITEM

Self-Diagnosis Mode

AKS004XZ

OPERATION PROCEDURES

Start the engine.

Turn the audio system OFF.

While pressing the “PAUSE/MUTE” switch, turn the volume con-
trol dial clockwise or counterclockwise for 30 clicks or more.
(When the self-diagnosis mode is started, a short beep will be
heard.)

Display unit connection check screen.

Select each connecting unit (IVCS, CHANGER, SATELLITE
RADIO).

Self-diagnosis screen is displayed.

●

Using the joystick, select each item, and perform diagnosis.

CAUTION:

If self-diagnosis cannot activated, refer to

AV-103, "Trouble

Diagnosis Chart by Symptom"

Mode

Item

Description

Reference page

Self-diagnosis

NETWORK CHECK

Check network between control unit and switch connected
from display unit via communication line.

AV-101, "NETWORK

CHECK"

PARTS CHECK

●

Perform diagnosis and setting of display unit.

●

Perform self-diagnosis for auto air conditioner system.

AV-101, "PARTS CHECK"

VERSION CHECK

Displays version of each unit.

AV-102, "VERSION CHECK"

CAN DIAG MNTR

Display unit displays CAN communication status.

AV-102, "CAN DIAG MNTR
(CAN DIAG MONITOR)"

SKIA4376E

SKIA7773E

SKIA7774E

INTEGRATED DISPLAY SYSTEM

AV-101

Revision; 2004 April

2003 Murano

NETWORK CHECK

Selecting NETWORK CHECK on self-diagnosis screen, display self-
diagnostic results.

PARTS CHECK

●

Selecting PARTS CHECK on self-diagnosis screen, display
selection screen.

●

Select DISPLAY, indicate DISPLAY DETAIL screen. Display
diagnosis and setting can be performed.

●

Select HVAC, Indicate HVAC DETAIL screen. Auto air condi-
tioner system self-diagnosis can be performed.

Display Detail Screen

NOTE:
Except an audio screen.

SKIA7775E

Diagnosis item

Contents

DTC return condition

Reference at error

HVAC

OK/NG

Communication error between unified meter and A/C amp. and dis-
play unit.

AV-110, "CAN Communica-
tion Line Check"

SWITCH

OK/NG

Communication error between A/C and AV switch and display unit.

AV-109, "AV Communica-
tion Line Check"

AUDIO

OK/NG

Communication error between audio and display unit.

AV-107, "Audio Communica-
tion Line Check"

SKIA7776E

Items

Description

FULL BLINK

All display unit segments turn ON.

BLANK–ADJ

Adjust the display timeout for 5 to 15 seconds. (Default is 10

seconds.)

Note

WARNING

Select warning indication ON/OFF. (Default is ON.)

SKIA7777E

AV-102

INTEGRATED DISPLAY SYSTEM

Revision; 2004 April

2003 Murano

HVAC DETAIL SCREEN

Press the joystick, start auto air conditioner system self-diagnosis.
Refer to

ATC-68, "Self-diagnosis Function"

VERSION CHECK

Check ID and version of display, A/C and AV switch, and audio.

CAN DIAG MNTR (CAN DIAG MONITOR)

Display CAN communication status.

A/C and AV Switch Self-Diagnosis Function

AKS005FY

It can check ON/OFF operation of each switch in the A/C and AV switch and diagnose the input signals to the
steering switch (audio).

STARTING THE SELF-DIAGNOSIS MODE

Turn ignition switch from OFF to ACC.

Within 10 seconds press and hold the witches “PAUSE/MUTE”
and “PREV ”simultaneously for 3 seconds.

Then the self-diagnosis operates.

EXITING THE SELF-DIAGNOSIS MODE

●

Turn ignition switch OFF. Then the self-diagnosis ends.

DIAGNOSIS FUNCTION

●

It can illuminate all the indicators (LED) in the A/C and AV switch.

●

It can check for continuity of the switches by sounding the buzzer when the A/C and AV switch is pressed.

●

It can check for continuity of harness between A/C and AV switch and steering switch (audio).

SKIA7778E

Items shown

Contents

CANCOMM

OK/NG

CAN1

OK/UNKWN

CAN2

OK/UNKWN

CAN3

OK/UNKWN

CAN4

OK/UNKWN

CAN5

OK/UNKWN

CAN6

OK/UNKWN

CAN7

OK/UNKWN

CAN8

OK/UNKWN

CAN9

OK/UNKWN

SKIA7779E

SKIA4385E

INTEGRATED DISPLAY SYSTEM

AV-103

Revision; 2004 April

2003 Murano

Trouble Diagnosis Chart by Symptom

AKS005IF

Symptom

Suspect Systems and reference

No screen is shown.

Refer to

AV-104, "Power Supply and Ground Circuit Check for Display Unit"

If above is normal, replace display unit.

Screen does not switch to nighttime mode after the
lighting switch is turned 1st.

Refer to

AV-107, "Illumination Signal Check"

If above is normal, replace display unit.

TRIP and FUEL ECON screen do not appear.

Refer to

AV-107, "Ignition Signal Check"

If above is normal, replace display unit.

●

Trip odometer (DIST) is not added up.

●

Average vehicle speed (AVG) is not displayed.

Refer to

DI-19, "Vehicle Speed Signal Inspection"

If above is normal, replace display unit.

Average fuel consumption (AVG) is not displayed.

●

Refer to

DI-19, "Vehicle Speed Signal Inspection"

●

Refer to

AV-110, "CAN Communication Line Check"

If above is normal, replace display unit.

Distance to empty (DTE) is not displayed.

●

Check if speedometer operates. If it does not operate, go to

DI-19, "Vehicle

Speed Signal Inspection"

●

Check if fuel gauge operates. If it does not operate, go to

DI-23, "Fuel Level

Sensor Signal Inspection 1"

●

Refer to

AV-110, "CAN Communication Line Check"

If above is normal, replace display unit.

Tire pressure is not displayed.

●

Check low tire pressure warning control unit. Refer to

WT-38, "Self-Diagnosis"

●

Refer to

AV-110, "CAN Communication Line Check"

If above is normal, replace display unit.

Door warning screen does not appear.

●

Refer to

DI-19, "Vehicle Speed Signal Inspection"

●

Refer to

AV-110, "CAN Communication Line Check"

If above is normal, replace display unit.

A/C and AV switch and all switch operation are not
possible.
(Do not start self-diagnosis.)

●

Refer to

AV-105, "Power Supply and Ground Circuit Check for A/C and AV

Switch"

●

Refer to

AV-102, "A/C and AV Switch Self-Diagnosis Function"

●

Refer to

AV-109, "AV Communication Line Check"

If above is normal, replace display unit.

Audio operation is not possible.

●

Refer to

AV-102, "A/C and AV Switch Self-Diagnosis Function"

●

Refer to

AV-107, "Audio Communication Line Check"

Air conditioner operation is not possible.

●

Refer to

AV-102, "A/C and AV Switch Self-Diagnosis Function"

●

Refer to

AV-110, "CAN Communication Line Check"

AV-104

INTEGRATED DISPLAY SYSTEM

Revision; 2004 April

2003 Murano

Power Supply and Ground Circuit Check for Display Unit

AKS005FF

CHECK FUSE

Make sure that the following fuses in display are not blown.

OK or NG

>> GO TO 2.

>> If fuse is blown, be sure to eliminate case of malfunction before installing new fuse. Refer to

PG-3,

"POWER SUPPLY ROUTING CIRCUIT"

CHECK POWER SUPPLY CIRCUIT

Check voltage between display unit connector and ground.

OK or NG

>> GO TO 3.

>> Check harness for open or short between display and fuse.

CHECK GROUND CIRCUIT

Turn ignition switch OFF.

Disconnect display unit connector.

Check continuity between Display unit harness connector M39
terminals 6 (B) and ground.

OK or NG

>> INSPECTION END

>> Repair ground harness.

Unit

Power souse

Fuse No.

Display

Battery power

Ignition switch ACC or ON

Terminals

Ignition switch position

(+)

(–)

OFF

ACC

Connector

Terminal

(Wire color)

M39

1 (Y)

Ground

Battery
voltage

2 (P/B)

Ground

Battery
voltage

SKIB0373E

Continuity should exist.

SKIA9483E

INTEGRATED DISPLAY SYSTEM

AV-105

Revision; 2004 April

2003 Murano

Power Supply and Ground Circuit Check for A/C and AV Switch

AKS005FG

CHECK FUSES

Make sure that the following fuses of the A/C and AV switch are not blown.

OK or NG

>> GO TO 2.

>> If fuse is blown, be sure to eliminate case of malfunction before installing new fuse. Refer to

PG-3,

"POWER SUPPLY ROUTING CIRCUIT"

CHECK POWER SUPPLY CIRCUIT

Check voltage between A/C and AV switch and ground.

OK or NG

>> GO TO 3.

>> Check harness for open or short between A/C and AV switch and fuse.

CHECK GROUND CIRCUIT

Turn ignition switch OFF.

Disconnect A/C and AV switch connector.

Check continuity between A/C and AV switch harness connector
M48 terminals 5 (B) and ground.

OK or NG

>> INSPECTION END

>> Repair ground harness.

Unit

Power source

Fuse No.

A/C and AV switch

Battery power

Ignition switch ACC or ON

Terminals

Ignition switch position

(+)

(–)

OFF

ACC

Connector

Terminal

(Wire color)

M48

1 (Y)

Ground

Battery
voltage

2 (P/B)

Ground

Battery
voltage

SKIA9396E

Continuity should exist.

SKIA4988E

AV-106

INTEGRATED DISPLAY SYSTEM

Revision; 2004 April

2003 Murano

Vehicle Speed Signal Check

AKS005G9

SPEEDOMETER FUNCTION CHECK

Does speedometer is operated normally?
Yes or No

Yes

>> GO TO 2.

>> Check combination meter trouble diagnosis. Refer to

DI-15, "Diagnosis Flow"

CHECK HARNESS

Turn ignition switch OFF.

Disconnect display unit connector, unified meter and A/C amp. connector, audio unit connector, combina-
tion meter connector and shift lock control unit connector.

Check continuity between display unit harness connector M39
terminal 7 (V/W) and unified meter and A/C amp. harness con-
nector M50 terminal 26 (V/W).

Check continuity between display unit harness connector M39
terminal 7 (V/W) and ground.

OK or NG

>> GO TO 3.

>> Repair harness.

CHECK DISPLAY UNIT

Connect display unit connector..

Turn ignition switch ON.

Check voltage between display unit harness connector M39 ter-
minal 7 (V/W) and ground.

OK or NG

>> GO TO 4.

>> Replace display unit.

CHECK 2: VEHICLE SPEED SIGNAL

Connect unified meter and A/C amp. connector, audio unit connector, combination meter connector and
shift lock control unit connector.

Drive vehicle at a constant speed.

Check signal between display unit harness connector M39 ter-
minal 7 (V/W) and ground with CONSULT-II or oscilloscope.

OK or NG

>> INSPECTION END

>> Check unified meter and A/C amp. system, refer to

DI-

19, "Vehicle Speed Signal Inspection"

Continuity should exist.

Continuity should not exist.

SKIA4390E

Approx. 5V

SKIA4391E

7 (V/W) - Ground

: Refer to

AV-97, "Terminals

and Reference Value for Dis-
play Unit"

SKIA4392E

INTEGRATED DISPLAY SYSTEM

AV-107

Revision; 2004 April

2003 Murano

Illumination Signal Check

AKS005GA

CHECK ILLUMINATION SIGNAL

Turn ignition switch ON.

Check voltage between display unit and ground.

OK or NG

>> INSPECTION END

>> Check harness for open or short between display unit

and IPDM E/R.

Ignition Signal Check

AKS005GB

CHECK IGNITION SIGNAL

Turn ignition switch ON.

Check voltage between display unit harness connector M39 ter-
minal 3 (G) and ground.

OK or NG

>> INSPECTION END

>> Check harness for open or short between display unit

and fuse.

Audio Communication Line Check

AKS005FK

CHECK HARNESS

Turn ignition switch OFF.

Disconnect audio unit connector and display unit connector.

Check continuity between audio unit and display unit.

Check continuity between display unit and ground.

OK or NG

>> GO TO 2.

>> Repair harness.

Terminals

Lighting switch position

(+)

(–)

Connector

Terminal

(Wire color)

1st or 2nd position

OFF

M39

4 (R/L)

Ground

Approx. 12V

Approx. 0V

SKIA4393E

Battery voltage should exist.

SKIA4394E

Terminals

Continuity

Display unit

Audio unit

Connector

Terminal (Wire color)

Connector

Terminal (Wire color)

M39

8 (R/G)

M46

23 (R/G)

Yes

10 (R/Y)

21 (R/Y)

Terminals

Continuity

Display unit

Ground

Connector

Terminal (Wire color)

M39

8 (R/G)

10 (R/Y)

SKIA4395E

AV-108

INTEGRATED DISPLAY SYSTEM

Revision; 2004 April

2003 Murano

CHECK AUDIO TX COMMUNICATION SIGNAL

Connect audio unit connector.

Turn ignition switch ON.

Check voltage between audio unit harness connector M46 ter-
minal 23 (R/G) and ground.

OK or NG

>> GO TO 3.

>> Replace audio unit.

CHECK AUDIO RX COMMUNICATION SIGNAL

Turn ignition switch OFF.

Disconnect audio unit connector, and connect display unit connector.

Turn ignition switch ON.

Check voltage between display unit harness connector M39 ter-
minal 10 (R/Y) and ground.

OK or NG

>> GO TO 4.

>> Replace display unit.

CHECK AUDIO TX COMMUNICATION SIGNAL

Turn ignition switch OFF.

Connect audio unit connector.

Turn ignition switch ON.

Check signal between display unit harness connector M39 ter-
minal 8 (R/G) and ground with CONSULT-ll or oscilloscope.

OK or NG

>> GO TO 5.

>> Replace display unit.

Approx. 4V

SKIA9484E

Approx. 4V

SKIA9485E

8 (R/G) - Ground

: Refer to

AV-97, "Terminals

and Reference Value for Dis-
play Unit"

SKIA4995E

INTEGRATED DISPLAY SYSTEM

AV-109

Revision; 2004 April

2003 Murano

CHECK AUDIO RX COMMUNICATION SIGNAL

Turn ignition switch ON.

Check signal between display unit harness connector M39 ter-
minal 10 (R/Y) and ground with CONSULT-ll or oscilloscope.

OK or NG

>> INSPECTION END

>> Replace audio unit.

AV Communication Line Check

AKS005FL

CHECK A/C AND AV SWITCH CIRCUIT

Turn ignition switch OFF.

Disconnect display unit connector and A/C and AV switch connector.

Check continuity between display unit and A/C and AV switch.

Check continuity between display unit and ground.

OK or NG

>> GO TO 2.

>> Replace harness.

CHECK AV COMMUNICATION SIGNAL

Connect display unit connector and A/C and AV switch connector.

Turn ignition switch ON.

Check the signal between display unit harness connector M39
terminals 11 (L/G), 13 (L/R) and ground with CONSULT-ll or
oscilloscope.

OK or NG

>> Replace A/C and AV switch.

>> Replace display unit.

10 (R/Y) - Ground

: Refer to

AV-97, "Terminals

and Reference Value for Dis-
play Unit"

SKIA4999E

Terminals

Continuity

Display unit

A/C and AV switch

Connector

Terminal

(Wire color)

Connector

Terminal

(Wire color)

M39

11 (L/G)

M48

6 (L/G)

Yes

13 (L/R)

8 (L/R)

Terminals

Continuity

Connector

Terminal

(Wire color)

Terminal

M39

11 (L/G)

Ground

13 (L/R)

SKIA4400E

11 (L/G), 13 (L/R) - Ground

: Refer to

AV-97, "Termi-

nals and Reference Value
for Display Unit"

SKIA5005E

AV-110

INTEGRATED DISPLAY SYSTEM

Revision; 2004 April

2003 Murano

CAN Communication Line Check

AKS005H0

CHECK MONITOR DESCRIPTION

Start display unit self-diagnosis.

AV-100, "Self-Diagnosis Mode"

Select “CAN DIAG MNTR”.

AV-102, "CAN DIAG MNTR (CAN

DIAG MONITOR)"

Record each item display description (OK/NG/UKNWN) displayed on the following CAN DIAG MONITOR
Check Sheet.

CAN DIAG MONITOR Check Sheet

>> After filling in CAN DIAG MONITOR Check Sheet, go to

LAN-10, "Precautions When Using CON-

SULT-II"

Diagnosis item

Data monitor display description

Normal condition

Error (example)

CANCOMM

CAN1

UNKWN

CAN2

UNKWN

CAN3

UNKWN

CAN4

UNKWN

CAN5

UNKWN

CAN6

UNKWN

CAN7

UNKWN

CAN8

UNKWN

CAN9

UNKWN

SKIA4384E

Diagnosis item

Screen display

Diagnosis item

Screen display

CANCOMM

CAN5

UNKWN

CAN1

UNKWN

CAN6

UNKWN

CAN2

UNKWN

CAN7

UNKWN

CAN3

UNKWN

CAN8

UNKWN

CAN4

UNKWN

CAN9

UNKWN

INTEGRATED DISPLAY SYSTEM

AV-111

Revision; 2004 April

2003 Murano

Steering Wheel Audio Control Switch Check

AKS005FZ

A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK

Start A/C and AV switch self-diagnosis function. Refer to

AV-102, "A/C and AV Switch Self-Diagnosis

Function"

Operate steering wheel audio control switch.

Dose steering wheel audio control switch operate normally?

>> Inspection end.

>> GO TO 2

CHECK HARNESS

Turn ignition switch OFF.

Disconnect A/C and AV switch connector and spiral cable connector.

Check continuity between spiral cable harness connector terminals and A/C and AV switch harness con-
nector terminals .

Check continuity between A/C and AV switch and ground.

OK or NG

>> GO TO 2.

>> Repair harness.

SPIRAL CABLE CHECK

Check spiral cable harness.

OK or NG

>> GO TO 4

>> Replace spiral cable.

Terminals

Continuity

spiral cable

A/C and AV switch

Connector

Terminal

Connector

Terminal (Wire color)

M31

32 (G)

M48

13 (G)

Yes

31 (B/W)

14 (B/W)

24 (R)

12 (R)

Terminals

Continuity

A/C and AV switch (+)

(–)

Connector

Terminal (Wire color)

M48

12 (R)

Ground

13 (G)

14 (B/W)

SKIA5873E

AV-112

INTEGRATED DISPLAY SYSTEM

Revision; 2004 April

2003 Murano

CHECK AUDIO STEERING WHEEL SWITCH RESISTANCE

Check resistance audio steering wheel switch terminals.

OK or NG

>> Replace AV and A/C switch.

>> Replace steering wheel audio control switch.

Removal and Installation of Display Unit

AKS005R3

REMOVAL

Remove center ventilator grille. Refer to

IP-11, "WORK STEP"

Remove screws (4) and remove display unit.

Remove screws (4) and remove bracket.

INSTALLATION

Install in the reverse order of removal.

Removal and Installation of A/C and AV Switch

AKS005R2

Refer to

AV-57, "Removal and Installation for A/C and AV Switch"

Terminal

Signal name

Condition

Resistance

(

Ω

)

(+)

(–)

Seek down

Depress (station) down switch.

Approx. 165

Power

Depress power switch.

Approx. 0

Volume (down)

Depress volume down switch.

Approx. 652

Seek up

Depress (station) up switch.

Approx. 165

Mode

Depress mode switch.

Approx. 0

Volume (up)

Depress volume up switch.

Approx. 652

SKIA9400E

PKIA2471E

PKIA2472E

Nissan Murano Z50 (2003 year). Manual - part 19