Nissan Murano Z50 (2005 year). Manual — part 15
AUDIO
AV-47
C
D
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AV
Revision: 2005 August
2005 Murano
Noise Inspection
AKS005F3
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Occurrence condition
Check item
Occurs only when engine is ON
A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed
●
Ignition condenser
A whistling noise occurs while the engine speed is
high. A booming noise occurs while the engine is
running and the lighting switch is ON
●
Alternator
The occurrence of the noise is linked with the operation of the fuel pump
●
Fuel pump condenser
Noise only occurs when various
electrical components are oper-
ating
A cracking or snapping sound occurs with the
operation of various switches
●
Relay malfunction, radio malfunction
The noise occurs when various motors are operat-
ing
●
Motor case ground
●
Motor
The noise occurs constantly, not just under certain conditions
●
Poor ground of antenna amp. or antenna
feeder line
A cracking or snapping sound occurs while the vehicle is being driven, especially
when it is vibrating excessively
●
Ground wire of body parts
●
Ground due to incorrect installation of parts
●
Wiring connections or a short circuit
AV-48
AUDIO
Revision: 2005 August
2005 Murano
Power Supply Circuit Inspection
AKS005F4
1.
CHECK FUSE
Make sure that the following fuses of the BOSE speaker amp. and audio 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
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 (B) 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
(Wire color)
M44
6 (Y)
Ground
Battery
voltage
Battery
voltage
Battery
voltage
10 (P/B)
Ground
0 V
Battery
voltage
Battery
voltage
Terminals
OFF
ACC
ON
(+)
(–)
Connector
Terminal
(Wire color)
B114
1 (Y)
Ground
Battery
voltage
Battery
voltage
Battery
voltage
SKIA8743E
SKIA9395E
17 – Ground
: Continuity should exist.
SKIA4312E
AUDIO
AV-49
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AV
Revision: 2005 August
2005 Murano
Power Supply and Ground Circuit Check for A/C and AV Switch
AKS00AJO
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)
0 V
Battery
voltage
Battery
voltage
SKIA9396E
5 – Ground
: Continuity should exist.
PKIA2860E
AV-50
AUDIO
Revision: 2005 August
2005 Murano
Audio Steering Wheel Switch Check
AKS0069B
1.
CHECK A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION
1.
Start A/C and AV switch self-diagnosis function. Refer to
AV-44, "A/C and AV Switch Self-Diagnosis Func-
.
2.
Operate audio steering wheel switch.
Does audio steering wheel switch operate normally?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK AUDIO STEERING WHEEL SWITCH RESISTANCE
1.
Turn ignition switch OFF.
2.
Disconnect combination switch (spiral cable) connector.
3.
Check resistance audio steering wheel switch harness connec-
tor terminals.
OK or NG
OK
>> GO TO 3.
NG
>> Replace audio steering wheel 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
Terminals
Continuity
Combination switch (spiral cable)
Connector
Terminal
Connector
Terminal
M31
32
M203
16
Yes
31
17
24
20
SKIB0521E
AUDIO
AV-51
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AV
Revision: 2005 August
2005 Murano
4.
CHECK HARNESS
1.
Disconnect A/C and AV switch connector.
2.
Check continuity between A/C and AV switch harness connector
terminals and combination switch (spiral cable) harness connec-
tor terminals.
3.
Check continuity between A/C and AV switch harness connector terminals and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair harness or connector.
A/C and AV Switch Check
AKS007H8
1.
CHECK A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION
1.
Start A/C and AV switch self-diagnosis function. Refer to
AV-44, "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-49, "Power Supply and Ground Circuit
OK or NG
OK
>> Replace A/C and AV switch.
NG
>> Repair malfunctioning parts.
Terminals
Continuity
A/C and AV switch
Combination switch
(spiral cable)
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
M48
13 (G)
M31
32 (G)
Yes
14 (B/W)
31 (B/W)
12 (R)
24 (R)
Terminals
Continuity
A/C and AV switch
Ground
Connector
Terminal (Wire color)
M48
12 (R)
No
13 (G)
14 (B/W)
SKIB0522E
AV-52
AUDIO
Revision: 2005 August
2005 Murano
Front Door Speaker Check (Base System)
AKS005FT
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
(Wire color)
Connector
Terminal
(Wire color)
M44
2 (W)
D5
1 (L/R)
Yes
1 (B)
2(L/B)
4 (Y)
D34
1 (W/B)
3 (BR)
2 (G/B)
Terminals
Continuity
Audio unit
Ground
Connector
Terminal (Wire color)
M44
2 (W)
No
1 (B)
4 (Y)
3 (BR)
SKIA4273E
AUDIO
AV-53
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AV
Revision: 2005 August
2005 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 signal
(+)
(–)
Con-
nec-
tor
Termi-
nal
(Wire
color)
Con-
nec-
tor
Termi-
nal
(Wire
color)
M44
2 (W)
M44
1 (B)
Receive
audio
signal.
4 (Y)
3 (BR)
SKIA9401E
SKIA0177E
AV-54
AUDIO
Revision: 2005 August
2005 Murano
Rear Door Speaker Check (Base System)
AKS005FU
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
(Wire color)
Connector
Terminal
(Wire color)
M45
13 (B/P)
D54
2 (R)
Yes
14 (O)
1(L)
15 (B/W)
D74
2 (R)
16 (L)
1 (L)
Terminals
Continuity
Audio unit
Ground
Connector
Terminal (Wire color)
M45
13 (B/P)
No
14 (O)
15 (B/W)
16 (L)
SKIA4280E
AUDIO
AV-55
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B
AV
Revision: 2005 August
2005 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 signal
(+)
(–)
Con-
nector
Termi-
nal
(Wire
color)
Con-
nector
Termi-
nal
(Wire
color)
M45
14
(O)
M45
13
(B/P)
Receive
audio
signal.
16
(L)
15
(B/W)
SKIA9402E
SKIA0177E
AV-56
AUDIO
Revision: 2005 August
2005 Murano
Front Door Speaker Check (BOSE System)
AKS005FV
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
(Wire color)
Connector
Terminal
(Wire color)
B115
13 (L/R)
D4
1 (L/R)
Yes
14 (L/B)
2 (L/B)
15 (W/B)
D33
1 (W/B)
16 (G/B)
2 (G/B)
Terminals
Continuity
BOSE speaker amp.
Ground
Connector
Terminal (Wire color)
B115
13 (L/R)
No
14 (L/B)
15 (W/B)
16 (G/B)
SKIA4282E
AUDIO
AV-57
C
D
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F
G
H
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L
M
A
B
AV
Revision: 2005 August
2005 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 signal
(+)
(–)
Con-
nector
Termi-
nal
(Wire
color)
Con-
nector
Termi-
nal
(Wire
color)
B115
13
(L/R)
B115
14
(L/B)
Receive
audio
signal.
15
(W/B)
16
(G/B)
SKIA9403E
SKIA0177E
AV-58
AUDIO
Revision: 2005 August
2005 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
(Wire color)
Connector
Terminal
(Wire color)
M44
1 (B)
B115
29 (B)
Yes
2 (W)
30 (W)
3 (BR)
27 (BR)
4 (Y)
28 (Y)
Terminals
Continuity
Audio unit
Ground
Connector
Terminal (Wire color)
M44
1 (B)
No
2 (W)
3 (BR)
4 (Y)
SKIA4284E
AUDIO
AV-59
C
D
E
F
G
H
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J
L
M
A
B
AV
Revision: 2005 August
2005 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 signal
(+)
(–)
Con-
nector
Termi-
nal
(Wire
color)
Con-
nector
Termi-
nal
(Wire
color)
M44
2 (W)
M44
1 (B)
Receive
audio
signal.
4 (Y)
3 (BR)
SKIA9401E
SKIA0177E
AV-60
AUDIO
Revision: 2005 August
2005 Murano
Rear Door Speaker Check (BOSE System)
AKS005FW
1.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect BOSE speaker amp. and rear door speaker connectors.
3.
Check continuity between BOSE speaker amp. harness connec-
tor terminals and rear 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.
Rear door speaker
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
B115
9 (G/W)
D53
1 (L)
Yes
10 (G)
2 (R)
11 (L)
D73
1 (L)
12 (R)
2 (R)
Terminals
Continuity
BOSE speaker amp.
Ground
Connector
Terminal (Wire color)
B115
9 (G/W)
No
10 (G)
11 (L)
12 (R)
SKIA4313E
AUDIO
AV-61
C
D
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F
G
H
I
J
L
M
A
B
AV
Revision: 2005 August
2005 Murano
2.
CHECK REAR DOOR SPEAKER SIGNAL
1.
Connect BOSE speaker amp. and rear 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 rear door speaker.
NG
>> GO TO 3.
Terminals
Condi-
tion
Reference signal
(+)
(–)
Con-
nector
Termi-
nal
(Wire
color)
Con-
nec-
tor
Termi-
nal
(Wire
color)
B115
9
(G/W)
B115
10
(G)
Receive
audio
signal.
11
(L)
12
(R)
SKIB0456E
SKIA0177E
AV-62
AUDIO
Revision: 2005 August
2005 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
(Wire color)
Connector
Terminal
(Wire color)
M45
13 (B/P)
B115
25 (Y)
Yes
14 (O)
26 (O)
15 (B/W)
23 (B/W)
16 (L)
24 (L)
Terminals
Continuity
Audio unit
Ground
Connector
Terminal (Wire color)
M45
13 (B/P)
No
14 (O)
15 (B/W)
16 (L)
SKIA4315E
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