Nissan Murano Z50 (2003 year). Manual — part 15
AUDIO
AV-33
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AV
Revision; 2004 April
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Terminals and Reference Value for BOSE Speaker Amp.
AKS005F0
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.
18 (W)
2 (B)
Woofer 1
Output
ON
Receive audio
signal
No sound from
woofer
19 (B/P)
3 (O)
Woofer 2
9 (G)
10 (B/Y)
Rear door
speaker LH
Output
ON
Receive audio
signal
No sound from
rear speaker LH
11 (L)
12 (R)
Rear door
speaker RH
Output
ON
Receive audio
signal
No sound from
rear speaker RH
13 (L/R)
14 (L/B)
Front door
speaker LH
and tweeter
LH
Output
ON
Receive audio
signal
No sound from
front door speaker
LH or tweeter LH
15 (W/B)
16 (G/B)
Front door
speaker RH
and tweeter
RH
Output
ON
Receive audio
signal
No sound from
front door speaker
RH or tweeter RH
17 (B)
Ground
Ground
–
ON
–
Approx. 0V
–
24 (L)
23 (B/W)
Audio sound
signal rear RH
Input
ON
Receive audio
signal
No sound from
rear speaker RH
SKIA0177E
SKIA0177E
SKIA0177E
SKIA0177E
SKIA0177E
SKIA0177E
AV-34
AUDIO
Revision; 2004 April
2003 Murano
A/C and AV Switch Self-Diagnosis Function
AKS005RI
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.
STARTING THE SELF-DIAGNOSIS MODE
1.
Turn ignition switch from OFF to ACC.
2.
Within 10 seconds press and hold the switches “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.
26 (O)
25 (Y)
Audio sound
signal rear LH
Input
ON
Receive audio
signal
No sound from
rear speaker LH
28 (Y)
27 (BR)
Audio sound
signal front RH
Input
ON
Receive audio
signal
No sound from
front door speaker
RH or tweeter RH
30 (W)
29 (B)
Audio sound
signal front LH
Input
ON
Receive audio
signal
No sound from
front door speaker
LH or tweeter LH
31
(G/W)
Ground
Control (sub+)
Input
ON
–
Approx. 12V
System does not
work properly.
Terminal
(Wire color)
Item
Signal
input/
output
Condition
Reference value
Example of
symptom
+
–
Ignition
switch
Operation
SKIA0177E
SKIA0177E
SKIA0177E
SKIA4385E
AUDIO
AV-35
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Trouble Diagnosis
AKS005F2
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.
MALFUNCTION WITH RADIO AND CD (BASE SYSTEM)
Make sure that operation excepting audio system can be done with A/C and AV switch. If not, refer
"Trouble Diagnosis Chart by Symptom"
to repair malfunctioning parts.
MALFUNCTION WITH RADIO, TAPE AND CD (BOSE SYSTEM)
Make sure that operation excepting audio system can be done with A/C and AV switch. If not, refer
"Trouble Diagnosis Chart by Symptom"
AV-218, "Unable to Operate All of A/C
and AV Switches (Unable to Start Self-Diagnosis)"
(With navigation system) to repair malfunctioning parts.
Symptom
Possible cause
Inoperative
●
Audio unit power supply circuit. Refer to
.
●
Audio communication line. Refer to
AV-40, "Audio Communication Line
Check (Without Navigation System)"
●
A/C and AV switch check. Refer to
AV-40, "A/C and AV Switch Check"
.
If above system is OK, replace audio unit.
Steering switch dose not operate
●
Steering switch check. Refer to
AV-39, "Steering Switch Check"
●
A/C and AV switch check. Refer to
AV-40, "A/C and AV Switch Check"
.
If above systems are OK, replace audio unit.
All speaker do not sound
AV-55, "Removal and Installation of Audio Unit"
One or several speaker does not sound
●
Front door speaker check. Refer to
AV-41, "Front Door Speaker Check
●
Rear door speaker check. Refer to
AV-43, "Rear Door Speaker Check (Base
If above system is OK, replace door speaker.
Poor sound
●
Audio unit
●
Speaker
Noisy
●
Audio unit
●
Each electrical equipment
Symptom
Possible cause
Inoperative
●
Audio unit power supply circuit. Refer to
.
●
Audio communication line (Without navigation system). Refer to
"Audio Communication Line Check (Without Navigation System)"
●
Audio communication line (With navigation system). Refer to
Communication Line Check (With Navigation System)"
●
A/C and AV switch check. Refer to
AV-40, "A/C and AV Switch Check"
.
If above system is OK, replace audio unit.
Steering switch dose not operate
●
Steering switch check. Refer to
AV-39, "Steering Switch Check"
●
A/C and AV switch check. Refer to
AV-40, "A/C and AV Switch Check"
.
If above systems are OK, replace audio unit.
All speaker do not sound
AV-55, "Removal and Installation of Audio Unit"
One or several speaker does not sound
●
Front door speaker check. Refer to
AV-45, "Front Door Speaker Check
●
Rear door speaker check. Refer to
AV-49, "Rear Door Speaker Check
If above system is OK, replace BOSE speaker amp.
●
Woofer check. Refer to
AV-53, "Woofer Check (BOSE System)"
If above system is OK, replace woofer.
AV-36
AUDIO
Revision; 2004 April
2003 Murano
FOR RADIO ONLY
NOTE:
1.
This is noise resulting from variations in field strength, such as fading noise and multi-path noise, or exter-
nal 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 the waves sent directly from the broadcast station arriving at the
antenna at a different time from the waves which reflect off of mountains or buildings.
FOR CASSETTE PLAYER ONLY
FOR CD ONLY
Speed sensitive volume system dose not work
●
Vehicle speed signal check. Refer to
AV-54, "Vehicle Speed Signal Check"
If above system is OK, replace audio unit.
Poor sound
●
Audio unit
●
BOSE speaker amp.
●
Speaker
Noisy
●
Audio unit
●
BOSE speaker amp.
●
Each electrical equipment
Symptom
Possible cause
Symptom
Possible cause
No sound
●
Audio unit
●
Antenna feeder
●
Antenna amp.
Noisy
●
Audio unit
●
Antenna feeder
●
Antenna amp.
●
Noise prevention parts
●
Each electrical equipment
●
Wire harness of each piece of electrical equipment
Selected radio stations stored in memory are deleted
●
Audio unit
Symptom
Possible cause
Cassette tape cannot be inserted
●
Cassette tape
●
Audio unit
Cassette tape cannot be ejected
Auto reverse does not work, or the tape direction changes in
the middle of play
There is much noise
The sound is not clear
Sound fluctuates/tape speed not correct
No sound
Symptom
Possible cause
CD cannot be inserted
●
CD
●
Audio unit
CD cannot be ejected
The CD cannot be played
The sound skips, stops suddenly, or is distorted
AUDIO
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Revision; 2004 April
2003 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
Possible cause
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.
●
Rear defogger coil malfunction
●
Open circuit in printed heater
●
Poor ground of antenna amplifier 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-38
AUDIO
Revision; 2004 April
2003 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.
POWER SUPPLY CIRCUIT CHECK
1.
Check voltage between audio unit and ground.
2.
Check voltage between BOSE speaker amp. and ground.
OK or NG
OK
>>
●
INSPECTION END (Base system)
●
GO TO 3 (BOSE system).
NG
>>
●
Check connector housings for disconnected or loose terminals.
●
Repair harness or connector.
Unit
Terminals
Signal name
Fuse No.
Audio unit
6
Battery power
38
10
Ignition switch ACC or ON
6
BOSE speaker amp.
1
Battery power
38
Unit
Terminal No.
OFF
ACC
ON
(+)
(-)
Connector
Terminal
(wire color)
Audio unit
M44
6 (Y)
Ground
Battery
voltage
Battery
voltage
Battery
voltage
10 (P/B)
Ground
0 V
Battery
voltage
Battery
voltage
SKIA8743E
Unit
Terminal No.
OFF
ACC
ON
(+)
(-)
Connector
Terminal
(wire color)
BOSE
speaker
amp.
B114
1(Y)
Ground
Battery
voltage
Battery
voltage
Battery
voltage
SKIA9395E
AUDIO
AV-39
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Revision; 2004 April
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3.
GROUND CIRCUIT CHECK
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
>>
●
Check connector housings for disconnected or loose
terminals.
●
Repair harness or connector.
Steering Switch Check
AKS0069B
1.
A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK
1.
Start A/C and AV switch self-diagnosis function. Refer to
AV-34, "A/C and AV Switch Self-Diagnosis Func-
2.
Operate steering switch.
Does steering switch operate normally?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK HARNESS
1.
Turn ignition switch OFF.
2.
Disconnect A/C and AV switch connector and spiral cable connector.
3.
Check continuity between spiral cable harness connector terminal and A/C and AV switch harness con-
nector terminal.
4.
Check continuity between A/C and AV switch and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness.
Continuity should exist.
SKIA4312E
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)
Yes
24 (R)
12 (R)
Yes
Terminals
Continuity
A/C and AV switch (+)
(–)
Connector
Terminal (Wire color)
M48
12 (R)
Ground
No
13 (G)
14 (B/W)
SKIA5873E
AV-40
AUDIO
Revision; 2004 April
2003 Murano
3.
SPIRAL CABLE CHECK
1.
Disconnect spiral cable connector.
2.
Check continuity between spiral cable terminals.
OK or NG
OK
>> GO TO 4.
NG
>> Replace spiral cable.
4.
CHECK STEERING SWITCH RESISTANCE
Check resistance steering switch terminals.
OK or NG
OK
>> INSPECTION END
NG
>> Replace steering switch.
A/C and AV Switch Check
AKS007H8
1.
A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK
1.
Start A/C and AV switch self-diagnosis function. Refer to
AV-34, "A/C and AV Switch Self-Diagnosis Func-
.
2.
Operate voluntary switch.
Does A/C and AV switch operate normally?
YES
>> INSPECTION END
NO
>> Replace A/C and AV switch.
Audio Communication Line Check (Without Navigation System)
AKS005RJ
1.
CHECK AUDIO COMMUNICATION LINE
Start audio communication line check. Refer to
AV-40, "Audio Communication Line Check (Without Navigation
OK or NG
OK
>> INSPECTION END
NG
>> Replace malfunctioning part.
Terminals
Continuity
Spiral cable
Connector
Terminal
Connector
Terminal
M31
32
M203
16
Yes
31
17
Yes
24
20
Yes
SKIA5874E
Terminal
Signal name
Condition
Resistance
(
Ω
)
16
17
Seek down
Depress (station) down switch.
Approx.165
Power
Depress power switch.
Approx.0
Volume (down)
Depress volume down switch.
Approx.652
20
Seek up
Depress (station) up switch.
Approx.165
Mode
Depress mode switch.
Approx.0
Volume (up)
Depress volume up switch.
Approx.652
SKIA9400E
AUDIO
AV-41
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Revision; 2004 April
2003 Murano
Audio Communication Line Check (With Navigation System)
AKS005RK
1.
CHECK AUDIO COMMUNICATION LINE
Start audio communication line check. Refer to
AV-41, "Audio Communication Line Check (With Navigation
OK or NG
OK
>> INSPECTION END
NG
>> Replace malfunctioning part.
Front Door Speaker Check (Base System)
AKS005FT
1.
HARNESS CHECK
1.
Disconnect audio unit connector and front door speaker connector.
2.
Check continuity between audio unit harness connector terminal
and front door speaker harness connector terminal.
3.
Check continuity between audio unit harness connector terminal
and ground.
OK or NG
OK
>> GO TO 2.
NG
>>
●
Check connector housings for disconnected or loose terminals.
●
Repair harness or connector.
Terminals
Continuity
Audio unit
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
—
Connector
Terminal (Wire color)
M44
2 (W)
Ground
No
1 (B)
4 (Y)
3 (BR)
SKIA4273E
AV-42
AUDIO
Revision; 2004 April
2003 Murano
2.
FRONT SPEAKER SIGNAL CHECK
1.
Connect audio unit connector and front speaker connector.
2.
Turn ignition switch ON.
3.
Push “POWER” switch.
4.
Check signal between audio unit harness connector terminal
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
AUDIO
AV-43
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AV
Revision; 2004 April
2003 Murano
Rear Door Speaker Check (Base System)
AKS005FU
1.
HARNESS CHECK
1.
Disconnect audio unit connector and rear door speaker connector.
2.
Check continuity between audio unit harness connector terminal
and rear door speaker harness connector terminal.
3.
Check continuity between audio unit harness connector terminal
and ground.
OK or NG
OK
>> GO TO 2.
NG
>>
●
Check connector housings for disconnected or loose terminals.
●
Repair harness or connector.
Terminals
Continuity
Audio unit
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
—
Connector
Terminal (Wire color)
M45
13 (B/P)
Ground
No
14 (O)
15 (B/W)
16 (L)
SKIA4280E
AV-44
AUDIO
Revision; 2004 April
2003 Murano
2.
REAR SPEAKER SIGNAL CHECK
1.
Connect audio unit connector and rear speaker connector.
2.
Turn ignition switch ON.
3.
Push “POWER” switch.
4.
Check signal audio unit harness connector terminal with CON-
SULT-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
AUDIO
AV-45
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AV
Revision; 2004 April
2003 Murano
Front Door Speaker Check (BOSE System)
AKS005FV
1.
HARNESS CHECK
1.
Disconnect BOSE speaker amp. connector and front door speaker connector.
2.
Check continuity between BOSE speaker amp. harness connec-
tor terminal and front door speaker harness connector terminal.
3.
Check continuity between BOSE speaker amp. harness connec-
tor terminal and ground.
OK or NG
OK
>> GO TO 2.
NG
>>
●
Check connector housings for disconnected or loose terminals.
●
Repair harness or connector.
Terminals
Continuity
BOSE speaker amp.
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)
D34
1 (W/B)
16 (G/B)
2 (G/B)
Terminals
Continuity
BOSE speaker amp.
—
Connector
Terminal (Wire color)
B115
13 (L/R)
Ground
No
14 (L/B)
15 (W/B)
16 (G/B)
SKIA4282E
AV-46
AUDIO
Revision; 2004 April
2003 Murano
2.
FRONT SPEAKER SIGNAL CHECK
1.
Connect BOSE speaker amp. connector and front door speaker connector.
2.
Turn ignition switch ON.
3.
Push “POWER” switch.
4.
Check signal BOSE speaker amp. harness connector terminal
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
AUDIO
AV-47
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AV
Revision; 2004 April
2003 Murano
3.
HARNESS CHECK
1.
Disconnect audio unit connector and BOSE speaker amp. connector.
2.
Check continuity between audio unit harness connector terminal
and BOSE speaker amp. harness connector terminal.
3.
Check continuity between audio unit harness connector terminal
and ground.
OK or NG
OK
>> GO TO 4.
NG
>>
●
Check connector housings for disconnected or loose terminals.
●
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
—
Connector
Terminal (Wire color)
M44
1 (B)
Ground
No
2 (W)
3 (BR)
4 (Y)
SKIA4284E
AV-48
AUDIO
Revision; 2004 April
2003 Murano
4.
FRONT SPEAKER SIGNAL CHECK
1.
Connect audio unit connector and BOSE speaker amp. connector.
2.
Turn ignition switch ON.
3.
Push “POWER” switch.
4.
Check the signal audio unit harness connector terminal 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
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