Nissan X-Trail 32. Manual - part 11

AV-36

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

VEHICLE SPEED SIGNAL CIRCUIT

VEHICLE SPEED SIGNAL CIRCUIT

Component Function Check

INFOID:0000000010714761

1.

VEHICLE SPEED FUNCTION

1.

Turn ignition switch ON.

2.

Check the voltage between audio unit harness connector and ground.

CAUTION:

Always drive safely.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to 

AV-36, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010714762

NOTE:
• The auto ACC function allows the accessory power supply for a certain period of time even after ignition

switch OFF. For this reason, when performing diagnosis, turn the ignition switch OFF and wait for 3 minutes
with the driver's door opened.

• The operation of the vehicle during standby may cause an accessory power supply.

1.

CHECK VEHICLE SPEED SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect audio unit harness connector and combination meter harness connector.

3.

Check continuity between audio unit harness connector and combination meter harness connector.

4.

Check continuity between audio unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK DTC WITH “METER/M&A”

Terminals

Condition

Reference value

(Approx.)

(+)

(

−

)

Audio unit

Connector

Terminal

M46

18

Ground

Speedometer operated 

[When vehicle speed is 

approx. 40 km/h (25 

MPH)]

NOTE:

The maximum voltage varies de-

pending on the specification (desti-

nation unit).

JSNIA0012GB

Audio unit

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

M46

18

M34

38

Existed

Audio unit 

Ground

Continuity

Connector

Terminal

M46

18

Not existed

AV

VEHICLE SPEED SIGNAL CIRCUIT

AV-37

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Perform “Self Diagnostic Result” of “METER/M&A” with CONSULT. Refer to 

MWI-86, "CONSULT Function"

.

Is any DTC detected?

YES

>> Repair or replace malfunctioning parts.

NO

>> Replace combination meter. Refer to 

MWI-151, "Removal and Installation"

.

AV-38

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

MICROPHONE SIGNAL CIRCUIT

MICROPHONE SIGNAL CIRCUIT

Description

INFOID:0000000010957773

Audio unit supplies power to microphone. The microphone transmits the sound voice to the audio unit.

Diagnosis Procedure

INFOID:0000000010957774

NOTE:
• The auto ACC function allows the accessory power supply for a certain period of time even after ignition

switch OFF. For this reason, when performing diagnosis, turn the ignition switch OFF and wait for 3 minutes
with the driver's door opened.

• The operation of the vehicle during standby may cause an accessory power supply.

1.

CHECK CONTINUITY BETWEEN AUDIO UNIT AND MICROPHONE CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect audio unit harness connector and microphone harness connector.

3.

Check the continuity between audio unit harness connector and microphone harness connector.

4.

Check continuity between audio unit harness connector and ground.

Is inspection result OK?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK VOLTAGE MICROPHONE VCC 

1.

Connect audio unit harness connector.

2.

Turn ignition switch ON.

3.

Check the voltage between audio unit harness connector and ground.

Is inspection result OK?

YES

>> GO TO 3.

NO

>> Replace audio unit. Refer to 

AV-51, "Removal and Installation"

.

3.

CHECK MICROPHONE SIGNAL 

1.

Turn ignition switch OFF.

2.

Connect microphone harness connector.

3.

Turn ignition switch ON.

4.

Check the signal between audio unit harness connector.

Audio unit

Microphone

Continuity

Connector

Terminal

Connector

Terminal

M47

37

R21

1

Existed

21

4

38

2

audio unit

Ground

Continuity

Connector

Terminal

M47

37

Not existed

21

(+)

(–)

Standard

Voltage

(Approx.)

Audio unit

Connector

Terminal

M47

21

Ground

—

5.0 V

AV

MICROPHONE SIGNAL CIRCUIT

AV-39

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

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J

K

L

M

B

A

O

P

Is inspection result OK?

YES

>> Replace audio unit. Refer to 

AV-51, "Removal and Installation"

.

NO

>> Replace microphone. Refer to 

AV-56, "Removal and Installation"

.

Audio unit

Condition

Standard

Reference value

(+)

(–)

Connector

Terminal

Connector

Terminal

M47

37

M47

38

Give a 

voice.

The value between the 
maximum input voltage 
and the minimum input 
voltage is 4.72V or 
less.

PKIB5037J