Nissan Murano Z51. Manual - part 61

AV

STEERING SWITCH SIGNAL B CIRCUIT

AV-23

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Component Inspection

INFOID:0000000005528423

Measure the resistance between the steering switch connector ter-
minals.

Standard

JSNIA1145GB

Steering switch

Condition

Resistance 

Ω

Con-

nector

Termi-

nals

Con-

nector

Termi-

nal

M303

14

M303

17

SEEK DOWN switch 
ON

315 – 327

SEEK UP switch ON

119 – 123

SOURCE switch ON

0

15

VOL UP switch ON

119 – 123

VOL DOWN switch ON

0

AV-24

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

STEERING SWITCH SIGNAL GND CIRCUIT

STEERING SWITCH SIGNAL GND CIRCUIT

Description

INFOID:0000000005528424

Transmits the steering switch signal to audio unit.

Diagnosis Procedure

INFOID:0000000005528425

1.

CHECK STEERING SWITCH SIGNAL GND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect audio unit connector and spiral cable connector. 

3.

Check continuity between audio unit harness connector and spiral cable harness connector.

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.

3.

CHECK GROUND CIRCUIT

1.

Connect audio unit connector.

2.

Check continuity between audio unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace audio unit.

4.

CHECK STEERING SWITCH

1.

Turn ignition switch OFF.

2.

Check steering switch. Refer to 

AV-25, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace steering switch.

Audio unit

Spiral cable

Continuity

Connector

Terminal

Connector

Terminal

M46

15

M33

33

Existed

Audio unit

—

Continuity

Connector

Terminal

M46

15

Ground

Existed

AV

STEERING SWITCH SIGNAL GND CIRCUIT

AV-25

< DTC/CIRCUIT DIAGNOSIS >

[BASE AUDIO]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Component Inspection

INFOID:0000000005528426

Measure the resistance between the steering switch connector ter-
minals.

Standard

JSNIA1145GB

Steering switch

Condition

Resistance 

Ω

Con-

nector

Termi-

nals

Con-

nector

Termi-

nal

M303

14

M303

17

SEEK DOWN switch 
ON

315 – 327

SEEK UP switch ON

119 – 123

SOURCE switch ON

0

15

VOL UP switch ON

119 – 123

VOL DOWN switch ON

0

AV-26

< ECU DIAGNOSIS INFORMATION >

[BASE AUDIO]

AUDIO UNIT

ECU DIAGNOSIS INFORMATION

AUDIO UNIT

Reference Values

INFOID:0000000005528427

TERMINAL LAYOUT

PHYSICAL VALUES

JSNIA1180ZZ

Terminal

(Wire color)

Description

Condition

Reference value

(Approx.)

+

–

Signal name

Input/

Output

2

(L)

3

(B)

Sound signal front LH

Output

Ignition 

switch 

ON

Sound output.

4

(LG)

5

(Y)

Sound signal rear LH

Output

Ignition 

switch 

ON

Sound output.

6

(W)

15

(SB)

Steering switch signal A

Input

Ignition 

switch 

ON

Keep pressing SOURCE 
switch.

 0 V

Keep pressing 

 switch.

1.0 V

Keep pressing 

 switch.

2.0 V

Except for above.

5.0 V

7

(R)

Ground

ACC power supply

Input

Ignition 

switch 

ACC

—

Battery voltage

11

(BR)

12

(W)

Sound signal front RH

Output

Ignition 

switch 

ON

Sound output.

SKIB3609E

SKIB3609E

SKIB3609E