Nissan Murano Z50 (2006 year). Manual — part 14
AUDIO
AV-37
C
D
E
F
G
H
I
J
L
M
A
B
AV
Revision: 2006 August
2006 Murano
Terminals and Reference Value for A/C and AV Switch
NKS0021R
Terminal
(Wire color)
Item
Signal
input/
output
Condition
Reference value
+
–
Ignition
switch
Operation
1 (Y)
Ground
Battery power supply
Input
OFF
—
Battery voltage
2 (P/B)
Ground
ACC power supply
Input
ACC
—
Battery voltage
3 (R/L)
Ground
Illumination signal
Input
ON
Lighting switch ON
Approx. 12 V
Lighting switch OFF
Approx. 0 V
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. 12 V
5 (B)
Ground
Ground
—
ON
—
Approx. 0 V
6 (L/G)
Ground
Communication
signal (+)
Input/
Output
ON
—
7
—
Shield
—
—
—
—
8 (L/R)
Ground
Communication
signal (–)
Input/
Output
ON
—
12 (R)
Ground
Remote control A
Input
ON
Press and hold MODE
switch
Approx. 0 V
Press and hold SEEK UP
switch
Approx. 1.7 V
Press and hold VOL UP
switch
Approx. 3.3 V
Except for above
Approx. 5 V
13 (G)
Ground
Remote control B
Input
ON
Press and hold POWER
switch
Approx. 0 V
Press and hold SEEK
DOWN switch
Approx. 1.7 V
Press and hold VOL DOWN
switch
Approx. 3.3 V
Except for above
Approx. 5 V
14 (B/W)
Ground
Remote control
ground
—
ON
—
Approx. 0 V
SKIB7378E
SKIB7379E
AV-38
AUDIO
Revision: 2006 August
2006 Murano
Terminals and Reference Value for Satellite Radio Tuner
NKS002Q6
Terminal
(Wire color)
Item
Signal
input/
output
Condition
Reference value
+
–
Ignition
switch
Operation
12 (R)
11 (G)
Satellite radio audio
signal LH
Output
ON
Receive satellite radio audio
signal
14 (B)
13 (W)
Satellite radio audio
signal RH
Output
ON
Receive satellite radio audio
signal
15
—
Shield
—
—
—
—
16
—
Shield
—
—
—
—
18 (L)
Ground
Communication signal
REQ (SAT-AUDIO)
Output
ON
When setting to satellite
radio mode
19 (P)
Ground
Communication signal
Tx (SAT-AUDIO)
Output
ON
When setting to satellite
radio mode
20 (L)
Ground
Communication signal
Rx (AUDIO-SAT)
Input
ON
When setting to satellite
radio mode
22 (Y)
Ground
Battery power supply
Input
OFF
—
Battery voltage
26 (LG)
Ground
ACC power supply
Input
ACC
—
Battery voltage
27
—
Satellite radio antenna
—
—
—
—
SKIB3609E
SKIB3609E
SKIB7338E
SKIB7337E
SKIB7336E
AUDIO
AV-39
C
D
E
F
G
H
I
J
L
M
A
B
AV
Revision: 2006 August
2006 Murano
A/C and AV Switch Self-Diagnosis Function
NKS0021S
Performing self-diagnosis makes it possible to check operation of A/C and AV switch indicator (LED) and other
switch.
STARTING THE SELF-DIAGNOSIS MODE
1.
Turn ignition switch from OFF to ACC.
2.
Within 10 seconds press and hold the switches “1” and “6”
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 and audio steering switch
is pressed.
●
Continuity of harness between A/C and AV switch and audio steering switch.
NOTE:
Impossible to check rear window defogger switch operation (No beep sound even under normal status).
EXITING THE SELF-DIAGNOSIS MODE
●
Turn ignition switch OFF.
SKIB7704E
AV-40
AUDIO
Revision: 2006 August
2006 Murano
Trouble Diagnosis
NKS002LS
●
The majority of the audio malfunctions are the result of outside causes (bad CD/cassette, electromagnetic
interference, etc.). Check the symptoms below to diagnose the malfunction.
●
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction-
ing. Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment, and then determine the cause.
●
Make sure that other operation except audio system can be performed with A/C and AV switch. If these
operations are inoperative with A/C and AV switch, refer to
AV-107, "Unable to Operate System with A/C
(Without navigation system), or
AV-179, "Unable to Operate System with A/C and AV
(With navigation system).
●
Refer to "SERVICE BULLETIN NTB04-119" for the diagnosis of satellite radio.
Symptom
Possible malfunction location
Audio system does not work properly.
●
Audio unit power supply circuit
●
Communication signal circuit between audio unit and display control unit
●
A/C and AV switch
●
Audio unit
No sound can be heard from all speakers.
Base system
●
Audio unit
BOSE system
●
BOSE speaker amp. power supply and ground circuit
●
BOSE speaker amp. ON signal circuit
●
Audio unit
●
BOSE speaker amp.
No sound can be heard from one or several speakers.
Base system
●
Audio signal circuit between audio unit and speaker
●
Speaker
●
Tweeter
●
Audio unit
BOSE system
●
Audio signal circuit between audio unit and BOSE speaker amp.
●
Audio signal circuit between BOSE speaker amp. and speaker
●
Speaker
●
Tweeter
●
Audio unit
●
BOSE speaker amp.
No sound can be heard from woofer.
●
Audio signal circuit between BOSE speaker amp. and woofer
●
Woofer
●
BOSE speaker amp.
No sound can be heard from radio or noise is caught.
●
Antenna amp. ON signal circuit
●
Antenna feeder
●
Roof antenna
●
Antenna amp.
●
Audio unit
Audio steering switch does not operate properly.
●
Remote control signal circuit between audio steering switch and A/C and
AV switch
●
Audio steering switch
●
Spiral cable
●
A/C and AV switch
AUDIO
AV-41
C
D
E
F
G
H
I
J
L
M
A
B
AV
Revision: 2006 August
2006 Murano
NOTE:
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise
from trains and other sources. It is not a malfunction.
●
Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.
●
Multi-path noise: This noise results from a time difference between the broadcast waves directly from the
station arriving at the antenna and the waves reflected by mountains or buildings.
AV-42
AUDIO
Revision: 2006 August
2006 Murano
Inspection of Power Supply Circuit
NKS0021V
1.
CHECK FUSE
Make sure that the following fuses of the audio unit and BOSE speaker amp. 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
1.
Check voltage between audio unit harness connector terminals
and ground.
2.
Check voltage between BOSE speaker amp. harness connector
terminal and ground.
OK or NG
OK
>>
●
INSPECTION END (Base system)
●
GO TO 3 (BOSE system).
NG
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BOSE speaker amp. connector.
3.
Check continuity between BOSE speaker amp. harness connec-
tor B114 terminal 17 and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair harness or connector.
Unit
Signal
Fuse No.
Audio unit
Battery power supply
38
Ignition switch ACC or ON
6
BOSE speaker amp.
Battery power supply
38
Terminals
OFF
ACC
ON
(+)
(–)
Connector
Terminal
M44
6
Ground
Battery
voltage
Battery
voltage
Battery
voltage
10
Ground
0 V
Battery
voltage
Battery
voltage
Terminals
OFF
ACC
ON
(+)
(–)
Connector
Terminal
B114
1
Ground
Battery
voltage
Battery
voltage
Battery
voltage
SKIA8743E
SKIA9395E
17 – Ground
: Continuity should exist.
SKIA4312E
AUDIO
AV-43
C
D
E
F
G
H
I
J
L
M
A
B
AV
Revision: 2006 August
2006 Murano
Inspection of Audio Steering Switch
NKS0021X
1.
CHECK A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION
1.
Start A/C and AV switch self-diagnosis function. Refer to
AV-39, "A/C and AV Switch Self-Diagnosis Func-
2.
Operate audio steering switch.
Does audio steering switch operate normally?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK AUDIO STEERING SWITCH RESISTANCE
1.
Turn ignition switch OFF.
2.
Disconnect combination switch (spiral cable) connector.
3.
Check resistance audio steering switch harness connector ter-
minals.
OK or NG
OK
>> GO TO 3.
NG
>> Replace audio steering switch.
3.
CHECK SPIRAL CABLE
1.
Disconnect spiral cable connector.
2.
Check continuity between combination switch (spiral cable) ter-
minals.
OK or NG
OK
>> GO TO 4.
NG
>> Replace spiral cable.
Terminal
Signal name
Condition
Resistance
(
Ω
)
16
17
Seek down
Press and hold SEEK DOWN switch
Approx. 165
Power
Press and hold POWER switch
Approx. 0
Volume (down)
Press and hold VOL DOWN switch
Approx. 652
20
Seek up
Press and hold SEEK UP switch
Approx. 165
Mode
Press and hold MODE switch
Approx. 0
Volume (up)
Press and hold VOL UP switch
Approx. 652
SKIA9400E
24 – 20
: Continuity should exist.
31 – 17
: Continuity should exist.
32 – 16
: Continuity should exist.
SKIB0521E
AV-44
AUDIO
Revision: 2006 August
2006 Murano
4.
CHECK HARNESS
1.
Disconnect A/C and AV switch connector.
2.
Check continuity between A/C and AV switch harness connector
M48 terminals 12, 13, 14 and combination switch (spiral cable)
harness connector M31 terminals 24, 32, 31.
3.
Check continuity between A/C and AV switch harness connector
M48 terminals 12, 13, 14 and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair harness or connector.
12 – 24
: Continuity should exist.
13 – 32
: Continuity should exist.
14 – 31
: Continuity should exist.
12 – Ground
: Continuity should not exist.
13 – Ground
: Continuity should not exist.
14 – Ground
: Continuity should not exist.
SKIB0522E
AUDIO
AV-45
C
D
E
F
G
H
I
J
L
M
A
B
AV
Revision: 2006 August
2006 Murano
Inspection of Front Door Speaker (Base System)
NKS0021Z
1.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect audio unit and front door speaker connectors.
3.
Check continuity between audio unit harness connector termi-
nals and front door speaker harness connector terminals.
4.
Check continuity between audio unit harness connector termi-
nals and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness or connector.
Terminals
Continuity
Audio unit
Front door speaker
Connector
Terminal
Connector
Terminal
M44
2
D5
1
Yes
1
2
4
D34
1
3
2
Terminals
Continuity
Audio unit
Ground
Connector
Terminal
M44
2
No
1
4
3
SKIA4273E
AV-46
AUDIO
Revision: 2006 August
2006 Murano
2.
CHECK FRONT DOOR SPEAKER SIGNAL
1.
Connect audio unit and front door speaker connectors.
2.
Turn ignition switch ON.
3.
Press “POWER” switch.
4.
Check voltage waveform between audio unit harness connector
terminals and ground with CONSULT-II or oscilloscope.
OK or NG
OK
>> INSPECTION END
NG
>> Replace audio unit.
Terminals
Condi-
tion
Reference value
(+)
(–)
Con-
nec-
tor
Termi-
nal
Con-
nec-
tor
Termi-
nal
M44
2
M44
1
Receive
audio
signal
4
3
SKIA9401E
SKIB3609E
AUDIO
AV-47
C
D
E
F
G
H
I
J
L
M
A
B
AV
Revision: 2006 August
2006 Murano
Inspection of Rear Door Speaker (Base System)
NKS00220
1.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect audio unit and rear door speaker connectors.
3.
Check continuity between audio unit harness connector termi-
nals and rear door speaker harness connector terminals.
4.
Check continuity between audio unit harness connector termi-
nals and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness or connector.
Terminals
Continuity
Audio unit
Rear door speaker
Connector
Terminal
Connector
Terminal
M45
13
D54
2
Yes
14
1
15
D74
2
16
1
Terminals
Continuity
Audio unit
Ground
Connector
Terminal
M45
13
No
14
15
16
SKIA4280E
AV-48
AUDIO
Revision: 2006 August
2006 Murano
2.
CHECK REAR DOOR SPEAKER SIGNAL
1.
Connect audio unit and rear door speaker connectors.
2.
Turn ignition switch ON.
3.
Press “POWER” switch.
4.
Check voltage waveform audio unit harness connector terminals
with CONSULT-II or oscilloscope.
OK or NG
OK
>> INSPECTION END
NG
>> Replace audio unit.
Terminals
Condi-
tion
Reference value
(+)
(–)
Con-
nector
Termi-
nal
Con-
nector
Termi-
nal
M45
14
M45
13
Receive
audio
signal
16
15
SKIA9402E
SKIB3609E
AUDIO
AV-49
C
D
E
F
G
H
I
J
L
M
A
B
AV
Revision: 2006 August
2006 Murano
Inspection of Front Door Speaker (BOSE System)
NKS00221
1.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect BOSE speaker amp. and front door speaker connectors.
3.
Check continuity between BOSE speaker amp. harness connec-
tor terminals and front door speaker harness connector termi-
nals.
4.
Check continuity between BOSE speaker amp. harness connec-
tor terminals and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair harness or connector.
Terminals
Continuity
BOSE speaker amp.
Front door speaker
Connector
Terminal
Connector
Terminal
B115
13
D4
1
Yes
14
2
15
D33
1
16
2
Terminals
Continuity
BOSE speaker amp.
Ground
Connector
Terminal
B115
13
No
14
15
16
SKIA4282E
AV-50
AUDIO
Revision: 2006 August
2006 Murano
2.
CHECK FRONT DOOR SPEAKER SIGNAL
1.
Connect BOSE speaker amp. and front door speaker connectors.
2.
Turn ignition switch ON.
3.
Press “POWER” switch.
4.
Check voltage waveform BOSE speaker amp. harness connec-
tor terminals with CONSULT-II or oscilloscope.
OK or NG
OK
>> Replace front door speaker.
NG
>> GO TO 3.
Terminals
Condi-
tion
Reference value
(+)
(–)
Con-
nector
Termi-
nal
Con-
nector
Termi-
nal
B115
13
B115
14
Receive
audio
signal
15
16
SKIA9403E
SKIB3609E
AUDIO
AV-51
C
D
E
F
G
H
I
J
L
M
A
B
AV
Revision: 2006 August
2006 Murano
3.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect audio unit and BOSE speaker amp. connectors.
3.
Check continuity between audio unit harness connector termi-
nals and BOSE speaker amp. harness connector terminals.
4.
Check continuity between audio unit harness connector termi-
nals and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair harness or connector.
Terminals
Continuity
Audio unit
BOSE speaker amp.
Connector
Terminal
Connector
Terminal
M44
1
B115
29
Yes
2
30
3
27
4
28
Terminals
Continuity
Audio unit
Ground
Connector
Terminal
M44
1
No
2
3
4
SKIA4284E
AV-52
AUDIO
Revision: 2006 August
2006 Murano
4.
CHECK FRONT DOOR SPEAKER SIGNAL
1.
Connect audio unit and BOSE speaker amp. connectors.
2.
Turn ignition switch ON.
3.
Press “POWER” switch.
4.
Check voltage waveform audio unit harness connector terminals
with CONSULT-II or oscilloscope.
OK or NG
OK
>> INSPECTION END
NG
>> Replace audio unit.
Terminals
Condi-
tion
Reference value
(+)
(–)
Con-
nector
Termi-
nal
Con-
nector
Termi-
nal
M44
2
M44
1
Receive
audio
signal
4
3
SKIA9401E
SKIB3609E
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