Nissan Maxima. Manual - part 142

AV-388

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/ BOSE]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT
AV CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009471342

Regarding Wiring Diagram information, refer to 

AV-449, "Wiring Diagram - With BOSE Audio system Without

Navigation System"

.

1.

CHECK FUSES

Check that the following fuses of the AV control unit are not blown.

Are the fuses OK?

YES

>> GO TO 2.

NO

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

2.

POWER SUPPLY CIRCUIT CHECK

1. Disconnect AV control unit connectors M152 and M156. 

2. Check voltage between the AV control unit connectors M152

and M156 and ground.

Are the voltage results as specified?

YES

>> GO TO 3.

NO

>> • Check connector housings for disconnected or loose

terminals.

• Repair harness or connector.

3.

GROUND CIRCUIT CHECK

Unit

Terminals

Signal name

Fuse No.

AV control unit

19

Battery power

24

7

Ignition switch ACC or ON

17

104

Ignition switch ON or START

3

(+)

(-)

OFF

ACC

ON

Connector

Terminal

M152

7

Ground

0V

Battery 
voltage

Battery 
voltage

19

Ground

Battery 
voltage

Battery 
voltage

Battery 
voltage

M156

104

Ground

0V

0V

Battery 
voltage

AWNIA1581ZZ

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-389

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/ BOSE]

C

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B

A

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1. Turn ignition switch OFF.

2. Check continuity between AV control unit harness connector

and ground.

Are the inspection results OK?

YES

>> Inspection End.

NO

>> Repair AV control unit ground.

DISPLAY UNIT
DISPLAY UNIT : Diagnosis Procedure

INFOID:0000000009471343

Regarding Wiring Diagram information, refer to 

AV-449, "Wiring Diagram - With BOSE Audio system Without

Navigation System"

.

1.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch to ACC.

2. Check voltage between display unit harness connector M141

and ground.

Does specified voltage exist?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect the display unit connector M141 and the AV control

unit connector M154.

3. Check continuity between the display unit harness connector

M141 (A) and the AV control unit connector M154 (B).

4. Check continuity between the display unit harness connector M141 (A) and ground.

Are continuity results as specified?

YES

>> Check AV control unit power and ground supply. Refer to 

AV-388, "AV CONTROL UNIT : Diagno-

sis Procedure"

.

NO

>> Repair harness or connector.

Connector

Terminal

—

Continuity

M152

20

Ground

Yes

AWNIA1930ZZ

(+)

(-)

Value (Approx.)

Connector

Terminal

M141

2

Ground

9V

3

ALNIA0317GB

A

B

Continuity

Connector

Terminal

Connector

Terminal

M141

2

M154

59

Yes

3

47

A

—

Continuity

Connector

Terminal

M141

2

Ground

No

3

ALNIA0318GB

AV-390

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/ BOSE]

POWER SUPPLY AND GROUND CIRCUIT

3.

CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect display unit connector.

3. Check continuity between display unit harness connector and

ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair harness or connector.

A/C AND AV SWITCH ASSEMBLY
A/C AND AV SWITCH ASSEMBLY : Diagnosis Procedure

INFOID:0000000009471344

Regarding Wiring Diagram information, refer to 

AV-449, "Wiring Diagram - With BOSE Audio system Without

Navigation System"

.

1.

CHECK FUSE

Check that the fuse of the AC and AV switch assembly is not blown.

Is the fuse OK?

YES

>> GO TO 2.

NO

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

2.

POWER SUPPLY CIRCUIT CHECK

1. Disconnect A/C and AV switch assembly connector M98. 

2. Check voltage between the A/C and AV switch assembly con-

nector M98 and ground.

Are the voltage results as specified?

YES

>> GO TO 3.

NO

>> • Check connector housings for disconnected or loose

terminals.

• Repair harness or connector.

3.

GROUND CIRCUIT CHECK

Connector

Terminal

—

Continuity

M141

1

Ground

Yes

ALNIA0319GB

Unit

Terminal

Signal name

Fuse No.

A/C and AV switch assembly

3

Ignition switch ACC or ON

17

(+)

(-)

OFF

ACC

ON

Connector

Terminal

M98

3

Ground

0V

Battery 
voltage

Battery 
voltage

AWNIA1718ZZ

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-391

< DTC/CIRCUIT DIAGNOSIS >

[COLOR DISPLAY - W/ BOSE]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

1. Turn ignition switch OFF.

2. Check continuity between A/C and AV switch assembly harness

connector M98 and ground.

Are the continuity results as specified?

YES

>> Inspection End.

NO

>> Repair harness or ground.

BOSE SPEAKER AMP
BOSE SPEAKER AMP : Diagnosis Procedure

INFOID:0000000009471345

Regarding Wiring Diagram information, refer to 

AV-449, "Wiring Diagram - With BOSE Audio system Without

Navigation System"

.

1.

CHECK FUSE

Check that the BOSE speaker amp. fuse is not blown.

Are the fuses OK?

YES

>> GO TO 2.

NO

>> Be sure to eliminate cause of malfunction before installing new fuse.

2.

CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BOSE speaker amp. connector.

3. Check voltage between BOSE speaker amp. harness connector

B110 terminal 10, 11 and ground.

Is battery voltage present?

YES

>> GO TO 3.

NO

>> Check harness between BOSE speaker amp. and fuse.

3.

CHECK GROUND CIRCUIT

Connector

Terminal

—

Continuity

M98

1

Ground

Yes

ALNIA0316GB

Unit

Terminal

Signal name

Fuse No.

BOSE speaker amp.

11

Battery power

26

10

25

(+)

(-)

Voltage (approx.)

Connector

Terminal

B110

10

Ground

Battery voltage

11

AWNIA1719ZZ