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 

AV-119,

"Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-114, "Removal and

Installation"

.

(+)

(-)

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]

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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 

AV-95, "Wiring Diagram"

.

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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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 

AV-95, "Wiring Diagram"

.

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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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