Nissan Pathfinder. Manual - part 126

AV

SUBWOOFER

AV-331

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITH BOSE]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness or connectors.

8.

CHECK PRE-AMP SIGNAL

1. Connect AV control unit connector M143 and BOSE speaker amp. connector B130.

2. Turn ignition switch to ACC.

3. Push AV control unit POWER switch.

4. Check signal between the terminals of AV control unit connector M143.

Is the inspection result normal?

YES

>> Replace BOSE speaker amp. Refer to 

AV-372, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-365, "Removal and Installation"

.

AV control unit

Ground

Continuity

Connector

Terminal

M143

112

—

No

118

108

114

AV control unit connector M143

Condition

Reference value

(+)

(

−)

Terminal

Terminal

112

118

Audio signal output

108

114

SKIB3609E

AV-332

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITH BOSE]

FRONT AUXILIARY INPUT JACK AUDIO SIGNAL CIRCUIT

FRONT AUXILIARY INPUT JACK AUDIO SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009174599

Regarding Wiring Diagram information, refer to 

AV-242, "Wiring Diagram"

.

1.

CHECK AUX SOUND SIGNAL CIRCUIT CONTINUITY

1. Turn ignition OFF.

2. Disconnect AV control unit connector M42 and front auxiliary input jacks connector.

3. Check continuity between AV control unit connector M42 and front auxiliary input jacks connector.

4. Check continuity between AV control unit connector M42 and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK AUX SOUND SIGNAL GROUND CIRCUIT CONTINUITY

Check continuity between AV control unit connector M42 and front auxiliary input jacks connector.

Is inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK AUX SOUND SIGNAL

1. Connect AV control unit connector M42 and front auxiliary input jacks connector.

2. Turn ignition switch to ACC.

3. Select AUX mode.

4. Check signals between AV control unit connector M42 and ground.

AV control unit

Front auxiliary input jacks

Continuity

Connector

Terminal

Connector

Terminal

M42

20

M205

1

Yes

21

3

AV control unit

Ground

Continuity

Connector

Terminal

M42

20

—

No

21

AV control unit

Front auxiliary input jacks

Continuity

Connector

Terminal

Connector

Terminal

M42

22

M205

2

Yes

AV control unit connector M42

Condition

Reference value

(+)

(

−)

Terminal

Terminal

AV

FRONT AUXILIARY INPUT JACK AUDIO SIGNAL CIRCUIT

AV-333

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITH BOSE]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> Replace front auxiliary input jacks. Refer to 

AV-381, "Removal and Installation"

.

NO

>> Replace AV control unit. Refer to 

AV-365, "Removal and Installation"

.

20

22

AUX mode selected

21

22

SKIB3609E

AV-334

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITH BOSE]

SATELLITE AUDIO SIGNAL CIRCUIT

SATELLITE AUDIO SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009174600

Regarding Wiring Diagram information, refer to 

AV-242, "Wiring Diagram"

.

1.

CHECK SATELLITE SOUND SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M51 and satellite radio tuner connector B2.

3. Check continuity between AV control unit connector M51 and satellite radio tuner connector B2.

4. Check continuity between AV control unit connector M51 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK SATELLITE SOUND SIGNAL GROUND CIRCUIT CONTINUITY

Check continuity between AV control unit connector M51 and satellite radio tuner connector B2.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK SATELLITE SOUND SIGNAL

1. Connect AV control unit connector M51 and satellite radio tuner connector B2.

2. Turn ignition switch to ACC.

3. Select satellite radio mode.

4. Check the signal between the terminals of AV control unit connector M51.

AV control unit

Satellite radio tuner

Continuity

Connector

Terminal

Connector

Terminal

M51

94

B2

22

Yes

96

24

AV control unit

Ground

Continuity

Connector

Terminal

M51

94

No

96

AV control unit

Satellite radio tuner

Continuity

Connector

Terminal

Connector

Terminal

M51

93

B2

21

Yes

95

23

AV control unit connector M51

Condition

Reference value

(+)

(

−)

Terminal

Terminal