Nissan Pathfinder (2012 year). Manual — part 33
AV-82
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO]
REAR DOOR SPEAKER
1. Connect AV control unit connector and rear speaker connector.
2. Turn ignition switch to ACC.
3. Push “POWER” switch.
4. Check the signal between AV control unit harness connector
M131 terminals with CONSULT or oscilloscope.
Is the audio signal voltage as specified?
YES
>> Replace the suspect rear door speaker. Refer to
.
NO
>> Replace AV control unit. Refer to
(+)
(-)
Condition
Reference
signal
Connector
Terminal
Terminal
M131
4
5
Receive
audio sig-
nal
13
14
AWNIA0034ZZ
SKIA0177E
August 2012
2012 Pathfinder
AV
STEERING SWITCH
AV-83
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO]
C
D
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F
G
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B
A
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STEERING SWITCH
Description
INFOID:0000000007347654
When one of the steering wheel AV control switches is pushed, the resistance in the steering wheel AV control
switch circuit changes depending on which button is pushed.
Diagnosis Procedure
INFOID:0000000007347655
Regarding Wiring Diagram information, refer to
1.
CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1. Disconnect steering wheel audio control switch connector M102.
2. Check resistance between steering switch connector terminals.
Do the steering wheel audio control switches check OK?
YES
>> GO TO 2
NO
>> Replace steering wheel audio control switch. Refer to
AV-120, "Removal and Installation"
.
2.
CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M131 and spiral cable
connector M30.
3. Check continuity between AV control unit harness connector
M131 (A) and spiral cable harness connector M30 (B).
4. Check continuity between AV control unit connector 1312 (A) and ground.
Are the continuity results as specified?
YES
>> GO TO 3
Terminal
Signal name
Condition
Resistance
(
Ω
)
(Approx.)
16
17
Seek (down)
Depress
switch.
165
Volume (down)
Depress VOL down switch.
652
Power
Depress PWR switch.
0
20
17
Seek (up)
Depress
switch.
165
Volume (up)
Depress VOL up switch.
652
Mode
Depress MODE switch.
0
WKIA4457E
A
B
Continuity
Connector
Terminal
Connector
Terminal
M131
6
M30
24
Yes
15
31
16
32
A
—
Continuity
Connector
Terminal
M131
6
Ground
No
15
16
ALNIA0332GB
August 2012
2012 Pathfinder
AV-84
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO]
STEERING SWITCH
NO
>> Repair harness.
3.
SPIRAL CABLE CHECK
1. Disconnect spiral cable connector M102.
2. Check continuity between spiral cable harness connector M30
(A) and M102 (B).
Is continuity present?
YES
>> Inspection End.
NO
>> Replace spiral cable. Refer to
SR-7, "Removal and Installation"
A
B
Continuity
Connector
Terminal
Connector
Terminal
M30
24
M102
20
Yes
31
17
32
16
AWNIA1600ZZ
August 2012
2012 Pathfinder
AV
REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT
AV-85
< DTC/CIRCUIT DIAGNOSIS >
[MID AUDIO]
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B
A
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REAR VIEW CAMERA IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000007347656
Rear view camera signals are transmitted from the rear view camera to the AV control unit using the camera
signal circuits.
Diagnosis Procedure
INFOID:0000000007347657
Regarding Wiring Diagram information, refer to
1.
CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUITY
NOTE:
Apply parking brakes before proceeding.
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M134 and rear view camera connector D551.
3. Check continuity between AV control unit harness connector M134 terminals 64, 65, 72 and rear view
camera harness connector D551 terminals 3, 5 and 6.
4. Check continuity between AV control unit harness connector M134 terminals 64, 65, 72 and ground.
Is inspection result OK?
YES
>> GO TO 2
NO
>> Repair harness or connector.
2.
CHECK CAMERA IMAGE SIGNAL
1. Connect AV control unit connector M134 and rear view camera connector D551.
2. Turn ignition switch ON.
3. Shift transmission into reverse.
4. Check signal between AV control unit harness connector M134 terminals 64 and 65.
Is inspection result OK?
YES
>> Replace AV control unit. Refer to
AV-114, "Removal and Installation"
NO
>> Replace rear view camera. Refer to
AV-125, "Removal and Installation"
.
64 - 5
: Continuity should exist.
65 - 6
: Continuity should exist.
72 - 3
: Continuity should exist.
64, 65, 72 - Ground
: Continuity should not exist.
64 - 65
:
SKIB2251J
August 2012
2012 Pathfinder
AV-86
< ECU DIAGNOSIS INFORMATION >
[MID AUDIO]
AV CONTROL UNIT
ECU DIAGNOSIS INFORMATION
AV CONTROL UNIT
Reference Value
INFOID:0000000007347658
VALUES ON THE DIAGNOSIS TOOL
CONSULT data monitor item
TERMINAL LAYOUT
PHYSICAL VALUES
Display Item
Dis-
play
Vehicle status
Remarks
VHCL SPD SIG
ON
Vehicle speed >0 km/h (0 MPH)
Changes in indication may be delayed. This is nor-
mal.
OFF
Vehicle speed =0 km/h (0 MPH)
PKB SIG
ON
Parking brake is applied.
Changes in indication may be delayed. This is nor-
mal.
OFF
Parking brake is released.
ILLUM SIG
ON
Block the light beam from the auto
light optical sensor when the light SW
is ON .
—
OFF
Expose the auto light optical sensor
to light when the light SW is OFF or
ON.
IGN SIG
ON
Ignition switch ON
—
OFF
Ignition switch in ACC position
REV SIG
ON
Selector lever in R position
Changes in indication may be delayed. This is nor-
mal.
OFF
Selector lever in any position other
than R
AWNIA2297ZZ
August 2012
2012 Pathfinder
AV
AV CONTROL UNIT
AV-87
< ECU DIAGNOSIS INFORMATION >
[MID AUDIO]
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Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
2
(BR)
3
(L)
Sound signal front door
speaker and front tweeter
LH
Output
Ignition
switch
ON
Audio output
4
(G)
5
(B)
Sound signal rear door
speaker and rear tweeter
LH
Output
Ignition
switch
ON
Audio output
6
(Y)
15
(L)
Steering switch signal A
Input
Ignition
switch
ON
Press and hold MODE
switch.
0V
Press and hold switch.
0.75V
Press and hold VOL up
switch
2V
Except for above.
5V
7
(G/Y)
Ground ACC power supply
Input
Ignition
switch
ACC
—
Battery voltage
9
(V)
Ground Illumination signal
Input
OFF
Lighting switch is OFF.
0V
Lighting switch is ON.
Battery voltage
11
(LG)
12
(R)
Sound signal front door
speaker and front tweeter
RH
Output
Ignition
switch
ON
Voice output
13
(GR)
14
(O)
Sound signal rear door
speaker and rear tweeter
RH
Output
Ignition
switch
ON
Voice output
15
(L)
Ground Steering switch signal GND
—
Ignition
switch
ON
—
0V
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
August 2012
2012 Pathfinder
AV-88
< ECU DIAGNOSIS INFORMATION >
[MID AUDIO]
AV CONTROL UNIT
16
(G)
15
(L)
Steering switch signal B
Input
Ignition
switch
ON
Press and hold POWER
switch
0V
Press and hold switch
0.75V
Press and hold VOL down
switch
2V
Except for above
5V
19
(Y)
Ground Battery power supply
Input
Ignition
switch
OFF
—
Battery voltage
20
(B)
Ground Ground
—
Ignition
switch
ON
—
0V
34
—
Antenna main
—
—
—
—
35
—
Antenna power
Output
Ignition
switch
ON
With AM/FM radio selected
12V
36
(G)
Ground AUX image signal
Output
Ignition
switch
ON
When AUX mode is select-
ed
37
(R)
Ground AUX image ground
—
Ignition
switch
ON
—
0V
38
(R)
Ground RGB signal (B: blue)
Output
Ignition
switch
ON
Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
39
(B)
Ground RGB signal (G: green)
Output
Ignition
switch
ON
Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
40
(W)
Ground RGB signal (R: red)
Output
Ignition
switch
ON
Start confirmation/adjust-
ment mode, and then dis-
play color bar by selecting
“Color Spectrum Bar” on
DISPLAY DIAGNOSIS
screen.
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB2251J
SKIB2237J
SKIB2236J
SKIB2238J
August 2012
2012 Pathfinder
AV
AV CONTROL UNIT
AV-89
< ECU DIAGNOSIS INFORMATION >
[MID AUDIO]
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B
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41
(R)
Ground RGB synchronizing signal
Output
Ignition
switch
ON
—
42
—
RGB synchronizing ground
—
Ignition
switch
ON
—
0V
43
(G)
Ground RGB area (YS) signal
Output
Ignition
switch
ON
RGB image
5V
AUX image
44
(LG)
Ground
Communication signal
(DISP
→
CONT)
Input
Ignition
switch
ON
When adjusting display
brightness
45
(B)
Ground
Horizontal synchronizing
(HP) signal
Input
Ignition
switch
ON
—
46
(BR)
Ground Signal ground
—
Ignition
switch
—
0V
47
(R)
Ground Signal VCC
Output
Ignition
switch
ACC
—
9V
54
(B)
Ground
Ground
—
Ignition
switch
ON
—
0V
56
(V)
Ground
Communication signal
(CONT
→
DISP)
Output
Ignition
switch
ON
When adjusting display
brightness
Terminal
(Wire color)
Description
Condition
Reference value
(Approx.)
+
–
Signal name
Input/
Output
SKIB3603E
PKIB4948J
PKIB5039J
SKIB3601E
PKIB5039J
August 2012
2012 Pathfinder
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