Nissan Pathfinder. Manual — part 87

AV

MICROPHONE SIGNAL CIRCUIT

AV-175

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITHOUT BOSE]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

MICROPHONE SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009174491

Regarding Wiring Diagram information, refer to

AV-88, "Wiring Diagram"

.

1.

CHECK MICROPHONE SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.
2. Disconnect Bluetooth

®

control unit connector B3 and microphone connector.

3. Check continuity between Bluetooth

®

control unit connector B3 terminals 7, 8, 29 and microphone con-

nector R109 terminals 6, 5, 3.

4. Check continuity between Bluetooth

®

control unit connector B3 terminals 7, 8, 29 and ground.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK MICROPHONE VCC VOLTAGE

1. Connect Bluetooth

®

control unit connector B3.

2. Turn ignition switch ON.
3. Check voltage between Bluetooth

®

control unit connector B3.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace Bluetooth

®

control unit. Refer to

AV-197, "Removal and Installation"

.

3.

CHECK MICROPHONE SIGNAL

1. Connect microphone connector.
2. Check signal between Bluetooth

®

control unit connector B3.

Bluetooth

®

control unit

Microphone

Continuity

Connector

Terminal

Connector

Terminal

B3

7

R109

6

Yes

8

5

29

3

Bluetooth

®

control unit

Ground

Continuity

Connector

Terminal

B3

7

—

No

8

29

Bluetooth

®

control unit connector B3

Voltage

(Approx.)

(+)

(

−)

Terminal

Terminal

29

8

5.0 V

AV-176

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITHOUT BOSE]

MICROPHONE SIGNAL CIRCUIT

Is the inspection result normal?

YES

>> Replace Bluetooth

®

control unit. Refer to

AV-197, "Removal and Installation"

.

NO

>> Replace microphone. Refer to

AV-198, "Removal and Installation"

.

Bluetooth

®

control unit connector B3

Condition

Reference value

(+)

(

−)

Terminal

Terminal

7

8

Speak into microphone.

PKIB5037J

AV

BLUETOOTH® CONTROL SIGNAL CIRCUIT

AV-177

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITHOUT BOSE]

C

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BLUETOOTH® CONTROL SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000009174492

1.

CHECK CONTROL SIGNAL CIRCUIT CONTINUITY

1. Turn ignition switch OFF.
2. Disconnect Bluetooth

®

control unit connector B3.

3. Check continuity between Bluetooth

®

control unit connector B3 terminals 20, 24 and ground.

Is the inspection result normal?

YES

>> Replace Bluetooth

®

control unit. Refer to

AV-197, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

Bluetooth

®

control unit

Ground

Continuity

Connector

Terminal

B3

20

—

Yes

24

AV-178

< DTC/CIRCUIT DIAGNOSIS >

[MID AUDIO WITHOUT BOSE]

STEERING SWITCH

STEERING SWITCH

Diagnosis Procedure

INFOID:0000000009174493

Regarding Wiring Diagram information, refer to

AV-88, "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 wheel audio control switch. Refer to

AV-190, "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?

Combination switch connector M149

Condition

Resistance

Ω

(Approx.)

Terminal

Terminal

14

17

Depress SOURCE switch.

1

Depress

switch.

121

Depress

switch.

321

Depress

switch.

723

Depress ENTER switch.

2023

15

Depress

switch.

1

Depress

switch.

121

Depress

switch.

321

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