Nissan Altima L32. Instruction — part 90

AV-352

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

SUBWOOFER (SEDAN)

1. Connect AV control unit connector M47 and BOSE speaker

amp. connector B121.

2. Turn ignition switch to ACC.

3. Push “POWER” switch.

4. Check the signal between AV control unit harness connector

M47 terminals with CONSULT-III or oscilloscope.

Are the audio signal voltage readings as specified?

YES

>> Replace BOSE speaker amp. Refer to

AV-438,

"Removal and Installation - Sedan"

.

NO

>> Replace AV control unit. Refer to

AV-437, "Removal and

Installation"

.

Connector

Terminals

Condition

Reference

signal

(+)

(-)

M47

5

6

Receive audio
signal

14

15

ALNIA0172ZZ

SKIA0177E

AV

AMP ON SIGNAL CIRCUIT

AV-353

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

C

D

E

F

G

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B

A

O

P

AMP ON SIGNAL CIRCUIT

Description

INFOID:0000000004206654

When the audio system is turned on, a voltage signal is supplied from the AV control unit to the BOSE speaker

amp. When this signal is received, the BOSE speaker amp. will turn on.

Diagnosis Procedure

INFOID:0000000004206655

1.

CHECK AMP ON SIGNAL (BOSE SPEAKER AMP)

1. Turn audio system ON.

2. Check voltage between BOSE speaker amp. harness connector

B121 terminal 60 and ground.

Is voltage greater than 6.5V?

YES

>> INSPECTION END.

NO

>> GO TO 2

2.

CHECK AMP ON SIGNAL (AV CONTROL UNIT)

Check voltage between AV control unit harness connector M47 ter-

minal 16 and ground.

Is voltage approximately 6.5 volts?

YES

>> Repair harness or connector.

NO

>> Replace AV control unit. Refer to

AV-437, "Removal and

Installation"

.

60 - Ground

: More than approx. 6.5V

ALNIA0147ZZ

16 - Ground

: More than approx. 6.5V

ALLIA0254ZZ

AV-354

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

STEERING SWITCH

STEERING SWITCH

Description

INFOID:0000000004206656

When one of the steering wheel audio control switches is pushed, the resistance in the steering switch circuit

changes depending on which button is pushed.

Diagnosis Procedure

INFOID:0000000004206657

1.

CHECK HARNESS

1. Turn ignition switch OFF.

2. Disconnect AV control unit connector M46 and spiral cable connector M30.

3. Check continuity between AV control unit connector M46 termi-

nals 25, 26, and 27 and spiral cable connector M30 terminals

24, 31, and 33.

4. Check continuity between AV control unit connector M46 (A) and

ground.

Are the continuity test results as specified?

YES

>> GO TO 2

NO

>> Repair harness.

2.

SPIRAL CABLE CHECK

1. Disconnect spiral cable connector M88.

2. Check continuity between spiral cable harness connector M30

and M88.

Are the continuity test results as specified?

YES

>> GO TO 3.

NO

>> Replace spiral cable. Refer to

SR-8, "Removal and Installation"

.

3.

CHECK STEERING SWITCH

Check steering switch. Refer to

AV-355, "Component Inspection"

.

Does the steering switch pass inspection?

YES

>> INSPECTION END.

NO

>> Replace steering switch. Refer to

AV-448, "Removal and Installation"

.

A

B

Continuity

Connector

Terminal

Connector

Terminal

M46

25

M30

24

Yes

26

33

27

31

A

–

Continuity

Connector

Terminal

M46

25

Ground

No

26

27

ALLIA0255ZZ

A

B

Continuity

Connector

Terminal

Connector

Terminal

M30

24

M88

14

Yes

31

15

33

17

ALNIA0931GB

AV

STEERING SWITCH

AV-355

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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Component Inspection

INFOID:0000000004206658

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

Standard

Between terminals 14 and
17
ENTER switch ON

: 2003 – 2043

Ω

switch ON

: 716 – 730

Ω

MENU DOWN switch ON

: 318 – 324

Ω

MENU UP switch ON

: 120 – 122

Ω

SOURCE switch ON

: 0

Ω

Between terminals 15 and
17

switch ON

: 716 – 730

Ω

switch ON

: 318 – 324

Ω

VOL UP switch ON

: 120 – 122

Ω

VOL DOWN switch ON

: 0

Ω

JSNIA0112GB