Nissan Pathfinder (2008 year). Manual — part 22
AV-16
< COMPONENT DIAGNOSIS >
[BASE AUDIO]
FRONT TWEETER
FRONT TWEETER
Description
INFOID:0000000001499932
The audio unit sends audio signals to the front tweeters using the front tweeter circuits.
Diagnosis Procedure
INFOID:0000000001499933
1.
HARNESS CHECK
1.
Disconnect audio unit connector M42 (A) and suspect front
tweeter connector (B).
2.
Check continuity between audio unit harness connector M42 (A)
and suspect front tweeter harness connector (B).
3.
Check continuity between audio unit harness connector M42 (A)
and ground.
Are the continuity results as specified?
YES
>> GO TO 2
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.
TWEETER SIGNAL CHECK
A
B
Continuity
Connector
Terminal
Connector
Terminal
M42
2
M109
1
Yes
3
2
11
M111
1
12
2
A
—
Continuity
Connector
Terminal
M42
2
Ground
No
3
11
12
AWNIA0031ZZ
AV
FRONT TWEETER
AV-17
< COMPONENT DIAGNOSIS >
[BASE AUDIO]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
1.
Connect audio unit connector and front tweeter connector.
2.
Turn ignition switch to ACC.
3.
Push “POWER” switch.
4.
Check the signal between audio unit harness connector termi-
nals with CONSULT-III or oscilloscope.
Is the audio signal voltage as specified?
YES
>> Replace tweeter. Refer to
.
NO
>> Replace audio unit. Refer to
Connector
Terminals
Condition
Reference signal
(+)
(-)
M42
2
3
Receive audio
signal
11
12
AWNIA0032ZZ
SKIA0177E
AV-18
< COMPONENT DIAGNOSIS >
[BASE AUDIO]
REAR DOOR SPEAKER
REAR DOOR SPEAKER
Description
INFOID:0000000001499934
The audio unit sends audio signals to the rear door speakers using the rear door speaker circuits.
Diagnosis Procedure
INFOID:0000000001499935
1.
HARNESS CHECK
1.
Disconnect audio unit connector M42 (A) and suspect speaker
connector.
2.
Check continuity between audio unit harness connector M42 (A)
and suspect speaker harness connector (B).
3.
Check continuity between audio unit harness connector M42 (A)
and ground.
Are the continuity results as specified?
YES
>> GO TO 2
NO
>> • Check connector housings for disconnected or loose terminals.
• Repair harness or connector.
2.
REAR SPEAKER SIGNAL CHECK
A B
Continuity
Connector
Terminal
Connector
Terminal
M42
4
D207
1
Yes
5
2
13
D307
1
14
2
A
—
Continuity
Connector
Terminal
M42
4
Ground
No
5
13
14
AWNIA0033ZZ
AV
REAR DOOR SPEAKER
AV-19
< COMPONENT DIAGNOSIS >
[BASE AUDIO]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
1.
Connect audio unit connector and rear door speaker connector.
2.
Turn ignition switch to ACC.
3.
Push “POWER” switch.
4.
Check the signal between audio unit harness connector termi-
nals with CONSULT-III or oscilloscope.
Is the audio signal voltage as specified?
YES
>> Replace rear speaker. Refer to
NO
>> Replace audio unit. Refer to
Connector
Terminal
Condition
Reference signal
(+)
(-)
M42
4
5
Receive audio
signal
13
14
AWNIA0034ZZ
SKIA0177E
AV-20
< ECU DIAGNOSIS >
[BASE AUDIO]
AUDIO UNIT
ECU DIAGNOSIS
AUDIO UNIT
Reference Value
INFOID:0000000001499942
TERMINAL LAYOUT
PHYSICAL VALUES
AWNIA0144ZZ
Terminal
(Wire color)
Item
Signal
input/
output
Condition
Reference value
+
–
2
(BR)
3
(L)
Audio signal front LH
Output
Ignition
switch
ON
Audio output
4
(G)
5
(B)
Audio signal rear LH
Output
Ignition
switch
ON
Audio output
7
(G/B)
Ground
ACC signal
Input
Ignition
switch
ON
Ignition switch ACC
or ON
Battery voltage
8
(GR)
—
Illumination control
—
—
—
—
9
(R)
Ground
Illumination power
Input
Ignition
switch
ON
Lighting switch ON
12V
11
(LG)
12
(R)
Audio signal front RH
Output
Ignition
switch
ON
Audio output
SKIA0177E
SKIA0177E
SKIA0177E
AV
AUDIO UNIT
AV-21
< ECU DIAGNOSIS >
[BASE AUDIO]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
13
(GR)
14
(O)
Audio signal rear RH
Output
Ignition
switch
ON
Audio output
19
(Y)
Ground
Battery power
Input
–
–
Battery voltage
Terminal
(Wire color)
Item
Signal
input/
output
Condition
Reference value
+
–
SKIA0177E
AV-22
< ECU DIAGNOSIS >
[BASE AUDIO]
AUDIO UNIT
Wiring Diagram
INFOID:0000000001450838
ALNWA0052GB
AV
AUDIO UNIT
AV-23
< ECU DIAGNOSIS >
[BASE AUDIO]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
ALNIA0568GB
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