Nissan Leaf. Manual - part 17

AV

MICROPHONE SIGNAL CIRCUIT

AV-59

< DTC/CIRCUIT DIAGNOSIS >

[AUDIO W/O NAVI (EXCEPT MEXICO)]

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MICROPHONE SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000010122484

Regarding Wiring Diagram information, refer to 

AV-33, "Wiring Diagram"

.

1.

CHECK HARNESS BETWEEN BLUETOOTH

®

 CONTROL UNIT AND MICROPHONE

1. Turn power switch OFF.
2. Disconnect Bluetooth

®

 control unit connector B9 and microphone connector R3.

3. Check continuity between Bluetooth

®

 control unit connector B9 and microphone connector R3.

4. Check continuity between Bluetooth

®

 control unit connector B9 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connectors.

2.

CHECK MICROPHONE POWER SUPPLY

1. Connect Bluetooth

®

 control unit connector B9 and microphone connector R3.

2. Turn power switch ON.

3. Check voltage between microphone connector R3 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace Bluetooth

®

 control unit. Refer to 

AV-73, "Removal and Installation"

.

3.

CHECK MICROPHONE SIGNAL

Check signal between terminals of Bluetooth

®

 control unit connector B9.

Bluetooth

®

 control unit

Microphone

Continuity

Connector

Terminal

Connector

Terminal

B9

7

R3

1

Yes

8

2

29

4

Bluetooth

®

 control unit

Ground

Continuity

Connector

Terminal

B9

7

—

No

29

Microphone

Ground

Voltage

(Approx.)

(+)

(-)

Connector

Terminal

R3

4

—

5V

AV-60

< DTC/CIRCUIT DIAGNOSIS >

[AUDIO W/O NAVI (EXCEPT MEXICO)]

MICROPHONE SIGNAL CIRCUIT

Is the inspection result normal?

YES

>> Replace Bluetooth

®

 control unit. Refer to 

AV-73, "Removal and Installation"

.

NO

>> Replace microphone. Refer to 

AV-72, "Removal and Installation"

.

Bluetooth

®

 control unit connector B9

Condition

Reference value

(+)

(-)

Terminal

Terminal

7

8

Speak into microphone.

PKIB5037J

A V

STEERING SWITCH

AV-61

< DTC/CIRCUIT DIAGNOSIS >

[AUDIO W/O NAVI (EXCEPT MEXICO)]

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STEERING SWITCH

Diagnosis Procedure

INFOID:0000000010122485

Regarding Wiring Diagram information, refer to 

AV-33, "Wiring Diagram"

.

1.

CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE

1. Turn power switch OFF.

2. Disconnect combination switch connector M112.

3. Check resistance between the terminals of combination switch connector M112.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace steering switches. Refer to 

AV-75, "Removal and Installation"

.

2.

CHECK HARNESS BETWEEN BLUETOOTH

®

 CONTROL UNIT AND COMBINATION SWITCH

1. Disconnect Bluetooth

®

 control unit connector B9 and combination switch connector M92.

2. Check continuity between Bluetooth

®

 control unit connector B9 and combination switch connector M92.

3. Check continuity between Bluetooth

®

 control unit connector B9 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

Combination switch connector M112

Condition

Resistance 

Ω

(Approx.)

Terminal

Terminal

14

17

Depress SOURCE switch.

1

Depress  

switch.

121

Depress  

switch.

321

Depress  

switch.

723

15

Depress  

switch.

1

Depress  

switch.

121

Depress  

switch. 

321

Bluetooth

®

 control unit

Combination switch 

Continuity

Connector

Terminal

Connector

Terminal

B9

12

M92

24

Yes

13

31

14

33

Bluetooth

®

 control unit

Ground

Continuity

Connector

Terminal

B9

12

—

No

13

14

AV-62

< DTC/CIRCUIT DIAGNOSIS >

[AUDIO W/O NAVI (EXCEPT MEXICO)]

STEERING SWITCH

3.

CHECK COMBINATION SWITCH

Check continuity between combination switch connectors M112 and M92.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace spiral cable. Refer to 

SR-23, "Removal and Installation"

.

4.

CHECK HARNESS BETWEEN BLUETOOTH

®

 CONTROL UNIT AND AUDIO UNIT 

1. Disconnect audio unit connector M83.
2. Check continuity between Bluetooth

®

 control unit connector B9 and audio unit connector M83.

3. Check continuity between Bluetooth

®

 control unit connector B9 and ground.

Is the inspection result normal?

YES

>> Replace audio unit. Refer to 

AV-69, "Removal and Installation"

.

NO

>> Repair or replace harness or connectors.

Combination switch 

Continuity

Connector

Terminal

Connector

Terminal

M112

14

M92

24

Yes

15

31

17

33

Bluetooth

®

 control unit

Audio unit 

Continuity

Connector

Terminal

Connector

Terminal

B9

17

M83

6

Yes

18

16

19

15

Bluetooth

®

 control unit

Ground

Continuity

Connector

Terminal

B9

17

—

No

18

19