Nissan Pathfinder. Manual - part 53

AV

REAR DOOR SPEAKER

AV-39

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

REAR DOOR SPEAKER

Diagnosis Procedure

INFOID:0000000009174392

Regarding Wiring Diagram information, refer to 

AV-21, "Wiring Diagram"

.

1.

CONNECTOR CHECK

Check the audio unit and speaker connectors for the following:

•  Proper connection

•  Damage

•  Disconnected or loose terminals
Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair the terminals or connectors.

2.

CHECK REAR DOOR SPEAKER SIGNAL CIRCUIT CONTINUITY

1. Disconnect audio unit connector M123 and suspect rear door speaker connector.

2. Check continuity between audio unit connector M123 and suspect rear door speaker connector.

3. Check continuity between audio unit connector M123 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

CHECK REAR DOOR SPEAKER SIGNAL

1. Connect audio unit connector M123 and suspect rear door speaker connector.

2. Turn ignition switch to ACC.

3. Push audio unit POWER switch.

4. Check the signal between the terminals of audio unit connector M123.

Audio unit

Rear door speaker

Continuity

Connector

Terminal

Connector

Terminal

M123

4

D206 (LH)

1

Yes

5

2

13

D306 (RH)

1

14

2

Audio unit

Ground

Continuity

Connector

Terminal

M123

4

—

No

5

13

14

Audio unit connector M123

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV-40

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

REAR DOOR SPEAKER

Is the inspection result normal?

YES

>> Replace rear door speaker. Refer to 

AV-52, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-46, "Removal and Installation"

.

4

5

Audio signal output

13

14

SKIB3609E

AV

STEERING SWITCH

AV-41

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

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STEERING SWITCH

Diagnosis Procedure

INFOID:0000000009174393

Regarding Wiring Diagram information, refer to 

AV-21, "Wiring Diagram"

.

1.

CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE

1. Turn ignition switch OFF.

2. Disconnect combination switch connector M149.

3. Check the resistance between the terminals of combination switch connector M149.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace steering switch. Refer to 

AV-48, "Removal and Installation"

.

2.

CHECK HARNESS BETWEEN COMBINATION SWITCH AND COMBINATION METER

1. Disconnect combination meter connector M24 and combination switch connector M30.

2. Check continuity between combination meter connector M24 and combination switch connector M30.

3. Check continuity between combination meter connector M24 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK COMBINATION SWITCH

Combination switch connector M149

Condition

Resistance 

Ω

(Approx.)

Terminal

Terminal

14

17

Depress SOURCE switch.

1

Depress  

switch.

121

Depress  

switch.

321

Depress ENTER switch.

2023

15

Depress  

switch.

1

Depress  

switch.

121

Depress  

switch. 

723

Depress DISP switch.

2023

Combination meter

Combination switch 

Continuity

Connector

Terminal

Connector

Terminal

M24

3

M30

24

Yes

24

33

4

31

Combination meter

Ground

Continuity

Connector

Terminal

M24

3

—

No

24

4

AV-42

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

STEERING SWITCH

Check continuity between combination switch connectors M30 and M149.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace spiral cable. Refer to 

SR-15, "Removal and Installation"

.

4.

CHECK HARNESS BETWEEN COMBINATION METER AND AUDIO UNIT 

1. Disconnect audio unit connector M123.

2. Check continuity between combination meter connector M24 and audio unit connector M123.

3. Check continuity between combination meter connector M24 and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness or connectors.

5.

CHECK AUDIO UNIT VOLTAGE

1. Connect combination meter connector M24 and audio unit connector M123.

2. Turn ignition switch ON.

3. Check the voltage between the terminals of audio unit connector M123.

Is the inspection result normal?

YES

>> Replace combination meter. Refer to 

MWI-82, "Removal and Installation"

.

NO

>> Replace audio unit. Refer to 

AV-46, "Removal and Installation"

.

Combination switch 

Continuity

Connector

Terminal

Connector

Terminal

M30

24

M149

14

Yes

31

15

33

17

Combination meter

Audio unit 

Continuity

Connector

Terminal

Connector

Terminal

M24

14

M123

6

Yes

15

16

16

15

Combination meter

Ground

Continuity

Connector

Terminal

M24

14

—

No

15

16

Audio unit M123

Voltage

(Approx.)

(+)

(

−)

Terminal

Terminal

6

15

5.0 V

16