Nissan Altima L32. Manual - part 37

AV-140

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

AMP ON SIGNAL CIRCUIT

AMP ON SIGNAL CIRCUIT

Description

INFOID:0000000004206460

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

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

Diagnosis Procedure

INFOID:0000000004206461

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 (AUDIO UNIT)

Check voltage between audio unit harness connector M43 terminal 1

and ground.

Is voltage greater than 6.5V?

YES

>> Repair harness or connector.

NO

>> Replace audio unit. Refer to 

AV-215, "Removal and

Installation"

.

60 - Ground

: More than approx. 6.5V

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1 - Ground

: More than approx. 6.5V

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AV

STEERING SWITCH (COUPE)

AV-141

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

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STEERING SWITCH (COUPE)

Description

INFOID:0000000004206462

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:0000000004206463

WITH BLUETOOTH

1.

CHECK HARNESS

1. Turn ignition switch OFF.

2. Disconnect Bluetooth control unit connector B55 and spiral

cable connector M30.

3. Check continuity between Bluetooth control unit connector B55

(A) terminals and spiral cable connector M30 (B) terminals. 

4. Check continuity between Bluetooth control unit B55 (A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 2

NO

>> Repair harness.

2.

CHECK HARNESS

1. Disconnect audio unit connector.

2. Check continuity between audio unit connector M43 (A) termi-

nals and Bluetooth control unit connector B55 (B) terminals.

Are the continuity test results as specified?

YES

>> GO TO 3

NO

>> Repair harness.

3.

SPIRAL CABLE CHECK

A

B

Continuity

Connector

Terminal

Connector

Terminal

B55

12

M30

24

Yes

13

31

14

33

A

-

Continuity

Connector

Terminal

B55

12

Ground

No

13

14

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A

B

Continuity

Connector

Terminal

Connector

Terminal

M43

6

B55

17

Yes

15

19

16

18

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AV-142

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

STEERING SWITCH (COUPE)

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 4

NO

>> Replace spiral cable. Refer to 

SR-8, "Removal and Installation"

.

4.

CHECK STEERING SWITCH

Check steering switch. Refer to 

AV-143, "Component Inspection"

.

Does the steering switch pass inspection?

YES

>> Replace Bluetooth control unit. Refer to 

AV-235, "Removal and Installation - Coupe"

NO

>> Replace steering switch. Refer to 

AV-225, "Removal and Installation"

.

WITHOUT BLUETOOTH

1.

CHECK STEERING SWITCH

Check steering switch. Refer to 

AV-143, "Component Inspection"

.

Does the steering switch pass inspection?

YES

>> GO TO 2

NO

>> Replace steering switch. Refer to 

AV-225, "Removal and Installation"

.

2.

CHECK HARNESS

1. Turn ignition switch OFF.

2. Disconnect audio unit connector M43 and spiral cable connector

M30.

3. Check continuity between spiral cable harness connector M30

(B) and audio unit harness connector M43 (A).

4. Check continuity between audio unit connector M43 (A) and ground.

Are the continuity test results as specified?

YES

>> GO TO 3

NO

>> Repair harness.

3.

SPIRAL CABLE CHECK

A

B

Continuity

Connector

Terminal

Connector

Terminal

M30

24

M88

14

Yes

31

15

33

17

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B

A

Continuity

Connector

Terminal

Connector

Terminal

M30

24

M43

6

Yes

31

16

33

15

A

—

Continuity

Connector

Terminal

M43

6

Ground

No

15

16

AWNIA0036ZZ

AV

STEERING SWITCH (COUPE)

AV-143

< COMPONENT DIAGNOSIS >

[BOSE AUDIO WITHOUT NAVIGATION]

C

D

E

F

G

H

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B

A

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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

>> Inspection End.

NO

>> Replace spiral cable. Refer to 

SR-8, "Removal and Installation"

.

Component Inspection

INFOID:0000000004206464

WITH BLUETOOTH

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

Standard

WITHOUT BLUETOOTH

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

Standard

A

B

Continuity

Connector

Terminal

Connector

Terminal

M30

24

M88

14

Yes

31

15

33

17

ALNIA0931GB

Between terminals 14 and 17

 switch ON

: 0 

Ω

SEEK UP switch ON

: 108 – 112 

Ω

SEEK DOWN switch ON

: 323 – 337 

Ω

Between terminals 15 and 17
VOL DOWN switch ON

: 0 

Ω

VOL UP switch ON

: 108 – 112 

Ω

 switch ON

: 323 – 337 

Ω

SOURCE switch ON

: 990 – 1030 

Ω

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Between terminals 14 and 17
SOURCE switch ON

: 0 

Ω

SEEK UP switch ON

: 162 – 168 

Ω

VOLUME UP switch ON

: 639 – 665 

Ω

Between terminals 15 and 17
SEEK DOWN switch ON

: 162 – 168 

Ω

VOL DOWN switch ON

: 639 – 665 

Ω

AWNIA0035ZZ