Nissan Murano Z50 (2004 year). Manual — part 17
INTEGRATED DISPLAY SYSTEM
AV-83
C
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AV
Revision: 2004 November
2004 Murano
TKWA1730E
AV-84
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November
2004 Murano
Wiring Diagram — COMM —
AKS004Z2
TKWA1731E
INTEGRATED DISPLAY SYSTEM
AV-85
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AV
Revision: 2004 November
2004 Murano
TKWA1732E
AV-86
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November
2004 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
ON
–
Battery voltage
A/C operation is
not possible.
Vehicle informa-
tion setting is not
possible.
4 (R/L)
Ground
Illumination
signal
Input
ON
Lighting switch
ON
Approx. 12V
Screen does not
switch to night-
time mode after
the lighting
switch is turned
ON.
Lighting switch
OFF
Approx. 0V
6 (B)
Ground
Ground
–
ON
–
Approx. 0V
–
7 (V/W)
Ground
Vehicle speed
signal
(8-pulse)
Input
ON
When vehicle
speed is
approx. 25
MPH (40 km/h)
NOTE:
Maximum voltage may be 5 V
due to specifications (connected
units).
Drive computer
item is not dis-
played correctly.
8 (R/G)
Ground
Audio TX
Output
ON
Operate audio
volume switch
Audio unit does
not operate
properly.
9
Ground
Shield
–
ON
–
Approx. 0V
–
10 (R/Y)
Ground
Audio RX
Input
ON
Operate audio
volume switch
Audio unit does
not operate
properly.
11 (L/G)
Ground
Communica-
tion signal (+)
Input/
Output
ON
Operate A/C
and AV switch
System does not
work properly.
12
Ground
Shield
–
ON
–
Approx. 0V
–
PKIA1935E
SKIA4402E
SKIA4403E
SKIA0175E
INTEGRATED DISPLAY SYSTEM
AV-87
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AV
Revision: 2004 November
2004 Murano
Terminals and Reference Value for A/C and AV Switch
AKS004XX
13 (L/R)
Ground
Communica-
tion signal (–)
Input/
Output
ON
Operate A/C
and AV switch
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
ON
Lighting switch
ON
Approx. 12V
A/C and AV
switch illumina-
tion does not
function when
lighting switch is
ON.
Lighting switch
OFF
Approx. 0V
4 (R/W)
Ground
Illumination
control signal
Input
ON
Illumination
control switch
is operated by
lighting switch
in ON position
Changes between approx. 0 and
approx. 12V
A/C and AV
switch illumina-
tion cannot be
controlled.
5 (B)
Ground
Ground
–
ON
–
Approx. 0V
–
6 (L/G)
Ground
Communica-
tion signal (+)
Input/
Output
ON
Operate A/C
and AV switch
System does not
work properly.
7
Ground
Shield
–
ON
–
Approx. 0V
–
8 (L/R)
Ground
Communica-
tion signal (–)
Input/
Output
ON
Operate A/C
and AV switch
System does not
work properly.
SKIA0175E
SKIA0176E
AV-88
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November
2004 Murano
12 (R)
Ground
Remote control
A
Input
ON
Push MODE
switch
Approx. 0V
Audio steering
wheel switch
controls do not
function.
Push SEEK
UP switch
Approx. 1.7V
Push VOL UP
switch
Approx. 3.3V
Except for
above
Approx. 5V
13 (G)
Ground
Remote control
B
Input
ON
Push POWER
switch
Approx. 0V
Audio steering
wheel switch
controls do not
function.
Push SEEK
DOWN switch
Approx. 1.7V
Push VOL
DOWN switch
Approx. 3.3V
Except for
above
Approx. 5V
14 (B/W)
Ground
Remote control
ground
–
ON
–
Approx. 0V
Audio steering
wheel switch
controls do not
function.
16 (G/W)
Ground
Rear window
defogger switch
signal
Output
ON
Push rear win-
dow 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
INTEGRATED DISPLAY SYSTEM
AV-89
C
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AV
Revision: 2004 November
2004 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
1.
Start the engine.
2.
Turn the audio system OFF.
3.
While pushing 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.)
4.
Display unit connection check screen.
5.
Select each connecting unit (IVCS, CHANGER, SATELLITE
RADIO).
6.
Self-diagnosis screen is displayed.
●
Using the joystick, select each item, and perform diagnosis.
CAUTION:
If self-diagnosis cannot activated, refer to
Mode
Item
Description
Reference page
Self-diagnosis
NETWORK CHECK
Check network between control unit and switch connected
from display unit via communication line.
PARTS CHECK
●
Perform diagnosis and setting of display unit.
●
Perform self-diagnosis for auto air conditioner system.
VERSION CHECK
Displays version of each unit.
CAN DIAG MNTR
Display unit displays CAN communication status.
AV-91, "CAN DIAG MNTR
(CAN DIAG MONITOR)"
SKIA4376E
SKIA7773E
SKIA7774E
AV-90
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November
2004 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
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-101, "CAN Communica-
tion Line Check"
SWITCH
OK/NG
Communication error between A/C and AV switch and display unit.
AV-100, "A/C and AV Switch
Does Not Operate"
AUDIO
OK/NG
Communication error between audio and display unit.
AV-98, "Audio Communica-
tion Line Check"
SKIA7776E
Items
Description
FULL BLINK
All display unit segments turn ON.
BLANK–ADJ
Adjust the display timeout.
WARNING
Select warning indication ON/OFF.
SKIA7777E
INTEGRATED DISPLAY SYSTEM
AV-91
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Revision: 2004 November
2004 Murano
HVAC DETAIL SCREEN
Push the joystick, start auto air conditioner system self-diagnosis.
Refer to
ATC-47, "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.
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
AV-92
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November
2004 Murano
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
audio steering wheel switch.
STARTING THE SELF-DIAGNOSIS MODE
1.
Turn ignition switch from OFF to ACC.
2.
Within 10 seconds push and hold the witches “PAUSE/MUTE”
and “PREV” simultaneously for 3 seconds.
DIAGNOSIS FUNCTION
The following are checked:
●
All the indicators (LED) in the A/C and AV switch.
●
Continuity of the switches by sounding the buzzer when the A/C and AV switch is pushed.
●
Continuity of harness between A/C and AV switch and audio steering wheel switch.
NOTE:
●
Indicators (LED) of REC/FRE switch change to “FRE”
→
“REC”
→
“FRE” every time the REC/FRE switch is
pushed. (These two do not turn on at a time.)
●
Impossible to check rear window defogger switch operation (No beep sound even under normal status).
EXITING THE SELF-DIAGNOSIS MODE
●
Turn ignition switch OFF.
SKIA4385E
INTEGRATED DISPLAY SYSTEM
AV-93
C
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B
AV
Revision: 2004 November
2004 Murano
Trouble Diagnosis Chart by Symptom
AKS005IF
Symptom
Check item
No screen is shown.
●
Display unit power supply and ground circuit. Refer to
and Ground Circuit Check for Display Unit"
.
●
Display unit
Screen does not switch to nighttime mode after the
lighting switch is turned ON.
●
Illumination signal. Refer to
AV-97, "Illumination Signal Check"
●
Display unit
TRIP and FUEL ECON screen do not appear.
●
Ignition signal. Refer to
AV-97, "Ignition Signal Check"
●
Display unit
●
Trip odometer (DIST) is not added up.
●
Average vehicle speed (AVG) is not displayed.
●
Vehicle speed signal. Refer to
AV-96, "Vehicle Speed Signal Check"
●
Display unit
Average fuel consumption (AVG) is not displayed.
●
Vehicle speed signal. Refer to
AV-96, "Vehicle Speed Signal Check"
●
CAN communication line. Refer to
AV-101, "CAN Communication Line Check"
.
●
Display unit
Distance to empty (DTE) is not displayed.
●
Check if speedometer operates. If it does not operate, go to
.
●
Check if fuel gauge operates. If it does not operate, go to
●
CAN communication line. Refer to
AV-101, "CAN Communication Line Check"
.
●
Display unit
Tire pressure is not displayed.
●
Ignition signal. Refer to
AV-97, "Ignition Signal Check"
●
Low tire pressure warning control unit. Refer to
.
●
CAN communication line. Refer to
AV-101, "CAN Communication Line Check"
.
●
Display unit
Door warning screen does not appear.
●
Ignition signal. Refer to
AV-97, "Ignition Signal Check"
●
Vehicle speed signal. Refer to
AV-96, "Vehicle Speed Signal Check"
●
CAN communication line. Refer to
AV-101, "CAN Communication Line Check"
.
●
Display unit
A/C and AV switch and all switch operation are not
possible.
(Do not start self-diagnosis.)
AV-100, "A/C and AV Switch Does Not Operate"
.
Air conditioner operation is not possible.
●
Ignition signal. Refer to
AV-97, "Ignition Signal Check"
●
A/C and AV switch. Refer to
AV-98, "A/C and AV Switch Check"
●
CAN communication line. Refer to
AV-101, "CAN Communication Line Check"
.
AV-94
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November
2004 Murano
Power Supply and Ground Circuit Check for Display Unit
AKS005FF
1.
CHECK FUSE
Make sure that the following fuses of the display unit are not blown.
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to
3, "POWER SUPPLY ROUTING CIRCUIT"
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between display unit harness connector terminals
and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector.
3.
Check continuity between display unit harness connector M39
terminal 6 (B) and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair harness or connector.
Unit
Signal
Fuse No.
Display unit
Battery power supply
38
Ignition switch ACC or ON
6
Terminals
OFF
ACC
ON
(+)
(–)
Connector
Terminal
(Wire color)
M39
1 (Y)
Ground
Battery
voltage
Battery
voltage
Battery
voltage
2 (P/B)
Ground
0V
Battery
voltage
Battery
voltage
SKIB0373E
6 – Ground
: Continuity should exist.
SKIA9483E
INTEGRATED DISPLAY SYSTEM
AV-95
C
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A
B
AV
Revision: 2004 November
2004 Murano
Power Supply and Ground Circuit Check for A/C and AV Switch
AKS005FG
1.
CHECK FUSE
Make sure that the following fuses of the A/C and AV switch are not blown
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to
3, "POWER SUPPLY ROUTING CIRCUIT"
.
2.
CHECK POWER SUPPLY CIRCUIT
Check voltage between A/C and AV switch harness connector termi-
nals and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect A/C and AV switch connector.
3.
Check continuity between A/C and AV switch harness connector
M48 terminal 5 (B) and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair harness or connector.
Unit
Signal
Fuse No.
A/C and AV switch
Battery power supply
38
Ignition switch ACC or ON
6
Terminals
OFF
ACC
ON
(+)
(–)
Connector
Terminal
(Wire color)
M48
1 (Y)
Ground
Battery
voltage
Battery
voltage
Battery
voltage
2 (P/B)
Ground
0V
Battery
voltage
Battery
voltage
SKIA9396E
5 – Ground
: Continuity should exist.
SKIA4988E
AV-96
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November
2004 Murano
Vehicle Speed Signal Check
AKS005G9
1.
VEHICLE SPEED OPERATION CHECK
Does speedometer is operated normally?
YES or NO
YES
>> GO TO 2.
NO
>> Check combination meter trouble diagnosis. Refer to
DI-19, "Vehicle Speed Signal Inspection"
.
2.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect display unit, unified meter and A/C amp., combination meter, audio unit and shift lock control
unit connectors.
3.
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).
4.
Check continuity between display unit harness connector M39
terminal 7 (V/W) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
3.
CHECK DISPLAY UNIT
1.
Connect display unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between display unit harness connector M39 ter-
minal 7 (V/W) and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Replace display unit.
7 – 26
: Continuity should exist.
7 – Ground
: Continuity should not exist.
SKIA4989E
7 – Ground
: Approx. 5V
SKIA4990E
INTEGRATED DISPLAY SYSTEM
AV-97
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AV
Revision: 2004 November
2004 Murano
4.
CHECK VEHICLE SPEED SIGNAL
1.
Turn ignition switch OFF.
2.
Connect unified meter and A/C amp., combination meter, audio unit and shift lock control unit connectors.
3.
Drive vehicle at a constant speed.
4.
Check voltage waveform between display unit harness connec-
tor M39 terminal 7 (V/W) and ground using CONSULT-II or oscil-
loscope.
OK or NG
OK
>> INSPECTION END
NG
>> Replace unified meter and A/C amp. Refer to
"Removal and Installation of Unified Meter and A/C
Amp."
Illumination Signal Check
AKS005GA
1.
CHECK ILLUMINATION SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between display unit harness connector terminals
and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair harness or connector.
Ignition Signal Check
AKS005GB
1.
CHECK IGNITION SIGNAL
1.
Turn ignition switch ON.
2.
Check voltage between display unit harness connector M39 ter-
minal 3 (G) and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair harness or connector.
7 – Ground
: Refer to
and Reference Value for Dis-
play Unit"
SKIA4991E
Terminals
Lighting switch position
(+)
(–)
Connector
Terminal
(Wire color)
ON
OFF
M39
4 (R/L)
Ground
Approx. 12V
Approx. 0V
SKIA4393E
3 – Ground
: Battery voltage
SKIA9482E
AV-98
INTEGRATED DISPLAY SYSTEM
Revision: 2004 November
2004 Murano
A/C and AV Switch Check
AKS00AS1
1.
CHECK A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION
1.
Start A/C and AV switch self-diagnosis function. Refer to
AV-92, "A/C and AV Switch Self-Diagnosis Func-
.
2.
Operate voluntary switch.
Does A/C and AV switch operate normally?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK A/C AND AV SWITCH POWER SUPPLY AND GROUND CIRCUIT
Check A/C and AV switch power supply and ground circuit. Refer to
AV-95, "Power Supply and Ground Circuit
OK or NG
OK
>> Replace A/C and AV switch.
NG
>> Repair malfunctioning parts.
Audio Communication Line Check
AKS005FK
1.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect audio unit and display unit connectors.
3.
Check continuity between audio unit harness connector termi-
nals and display unit harness connector terminals.
4.
Check continuity between display unit harness connector termi-
nals and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness or connector.
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)
9
25
SKIA9935E
Terminals
Continuity
Display unit
Ground
Connector
Terminal (Wire color)
M39
8 (R/G)
No
10 (R/Y)
SKIA9936E
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