Nissan Quest E52. Manual - part 178

AV

MICROPHONE SIGNAL CIRCUIT

AV-591

< DTC/CIRCUIT DIAGNOSIS >

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C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> Replace AV control unit. Refer to 

AV-610, "Removal and Installation"

.

NO

>> Replace microphone. Refer to 

AV-626, "Removal and Installation"

.

Probe

Condition

Standard

Reference value

(+)

(

−

)

AV control unit

Connector

Terminal

Connector

Terminal

M180

87

M180

71

Give a voice.

Waveform according to 
voice is input.

PKIB5037J

AV-592

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

STEERING SWITCH SIGNAL A CIRCUIT

STEERING SWITCH SIGNAL A CIRCUIT

Description

INFOID:0000000009652393

Transmits the steering switch signal to AV control unit.

Diagnosis Procedure

INFOID:0000000009652394

1.

CHECK STEERING SWITCH SIGNAL A CIRCUIT

1.

Disconnect AV control unit connector and spiral cable connector. 

2.

Check continuity between AV control unit harness connector and spiral cable harness connector.

3.

Check continuity between AV control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK SPIRAL CABLE

Check spiral cable.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace spiral cable. Refer to 

SR-15, "Removal and Installation"

.

3.

CHECK AV CONTROL UNIT VOLTAGE

1.

Connect AV control unit connector and spiral cable connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace AV control unit. Refer to 

AV-610, "Removal and Installation"

.

4.

CHECK STEERING SWITCH

1.

Turn ignition switch OFF.

2.

Check steering switch. Refer to 

AV-592, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering wheel. Refer to 

ST-12, "Removal and Installation"

.

Component Inspection

INFOID:0000000009652395

Measure the resistance between the steering switch connector terminals 14 to 17 and 15 to 17.

AV control unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M178

6

M33

24

Existed

AV control unit

Ground

Continuity

Connector

Terminal

M178

6

Not existed

Probe

Standard

Voltage

(Approx.)

(+)

(

−

)

AV control unit

Connector

Terminal

Connector

Terminal

M178

6

M178

15

0 - 5.5 V

5.0 V

AV

STEERING SWITCH SIGNAL A CIRCUIT

AV-593

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Standard

Between terminals 14 and 17

ENTER switch ON

: 1982 – 2063 

Ω

 switch ON

: 708 – 737 

Ω

MENU DOWN switch ON

: 314 – 327 

Ω

MENU UP switch ON

: 118 – 123 

Ω

SOURCE switch ON

: Less than 1

Ω

Between terminals 15 and 17

 switch ON

: 708 – 737 

Ω

 switch ON

: 314 – 327 

Ω

VOL UP switch ON

: 118 – 123 

Ω

VOL DOWN switch ON

: Less than 1

Ω

JSNIA0112GB

AV-594

< DTC/CIRCUIT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

STEERING SWITCH SIGNAL B CIRCUIT

STEERING SWITCH SIGNAL B CIRCUIT

Description

INFOID:0000000009652396

Transmits the steering switch signal to AV control unit.

Diagnosis Procedure

INFOID:0000000009652397

1.

CHECK STEERING SWITCH SIGNAL B CIRCUIT

1.

Disconnect AV control unit connector and spiral cable connector. 

2.

Check continuity between AV control unit harness connector and spiral cable harness connector.

3.

Check continuity between AV control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK SPIRAL CABLE

Check spiral cable. 
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace spiral cable. Refer to 

SR-15, "Removal and Installation"

.

3.

CHECK AV CONTROL UNIT VOLTAGE

1.

Connect AV control unit connector and spiral cable connector.

2.

Turn ignition switch ON.

3.

Check voltage between AV control unit harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace AV control unit. Refer to 

AV-610, "Removal and Installation"

.

4.

CHECK STEERING SWITCH

1.

Turn ignition switch OFF.

2.

Check steering switch. Refer to 

AV-594, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering wheel. Refer to 

ST-12, "Removal and Installation"

.

Component Inspection

INFOID:0000000009652398

Measure the resistance between the steering switch connector terminals 14 to 17 and 15 to 17.

AV control unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M178

16

M33

31

Existed

AV control unit

Ground

Continuity

Connector

Terminal

M178

16

Not existed

Probe

Standard

Voltage

(Approx.)

(+)

(

−

)

AV control unit

Connector

Terminal

Connector

Terminal

M178

16

M178

15

0 - 5.5 V

5.0 V