Nissan Maxima. Manual - part 51

AV-24

< SYSTEM DESCRIPTION >

[MONOCHROME DISPLAY - W/O BOSE]

DIAGNOSIS SYSTEM (AUDIO UNIT)

4. Returns to diagnosis default screen and displays “AV DIAGNOSIS”.
5. Pressing the AUDIO switch briefly displays the AV communication diagnosis mode. Pressing the AUDIO

switch briefly again switches to each AV communication display.

AV communication diagnosis item

6. Pressing the SEEK up switch displays the confirmation screen of “delete error record”. Press the SEEK

down switch if returning from RECORD DEL YES? to RECORD DEL NO?

The item is automatically determined approximately 6 seconds after it is displayed. Then the display

returns to AV TROUBLE DEL display item.

7. Self-diagnosis mode is canceled when the ignition switch is turned OFF.

Display item

Description

AV communication item

Current

Past

TRANSMIT

OK / UN

OK / 0 –39

The communication condition and error counter from the audio unit to 
the audio display unit are displayed.

DISP

OK / UN

OK / 0 –39

The communication condition and error counter from the audio display 
unit to the audio unit.

DISP MPDT

OK / UN

OK / 0 –39

BTHF MPDT

OK / UN

OK / 0 –39

The communication condition and error counter from the audio unit to 
the Bluetooth

®

 control unit.

NO HISTORY BTHF

—

—

This is displayed on models without Bluetooth

®

.

AV TROUBLE DEL

—

—

The error record can be deleted.

Display item

Description

RECORD DEL–NO?

Does not delete error record.

RECORD DEL–YES?

Deletes error record.

AV

DIAGNOSIS SYSTEM (BLUETOOTH® CONTROL UNIT)

AV-25

< SYSTEM DESCRIPTION >

[MONOCHROME DISPLAY - W/O BOSE]

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DIAGNOSIS SYSTEM (BLUETOOTH® CONTROL UNIT)

Diagnosis Description

INFOID:0000000009471167

The Bluetooth

®

 control unit has two diagnostic checks. The first diagnostic check is performed automatically

every ignition cycle during control unit initialization. The second diagnostic check is performed by the techni-

cian using the steering wheel audio control switches prior to trouble diagnosis.

BLUETOOTH

®

 CONTROL UNIT INITIALIZATION CHECKS

• Internal control unit failure
• Bluetooth

®

 antenna connection open or shorted

• Steering wheel audio control switches [

 (PHONE/SEND), 

 (PHONE/END)] stuck closed

• Vehicle speed pulse count

• Microphone connection test (with playback to operator)
• Bluetooth

®

 inquiry check

OPERATION PROCEDURE

1. Turn ignition switch to ACC or ON.
2. Wait for the Bluetooth

®

 system to complete initialization. This may take up to 10 seconds.

3. Press and hold the steering wheel audio control switch 

(PHONE/SEND) button for at least 5 seconds. The Bluetooth

®

system will begin to play a verbal prompt.

4. While the prompt is playing, press and hold the steering wheel

audio control switch   (PHONE/END) button until you hear the
“Diagnostics mode” prompt. The Bluetooth

®

 system will sound a

5-second beep.

5. While the beep is sounding, press and hold the steering wheel

audio control switch 

 (PHONE/END) button again until you

hear prompts.

6. The Bluetooth

®

 system has now entered into the diagnostic

mode. Results of the diagnostic checks will be verbalized to the

technician. Refer to 

AV-25, "Work Flow"

.

7. After the failure records are reported, an interactive microphone

test will be performed. Follow the voice prompt. If the micro-

phone test fails, refer to 

AV-25, "Work Flow"

.

8. Self-diagnosis mode is complete when the voice prompt says “All diagnostic functions completed”.

Work Flow

INFOID:0000000009471168

AWNIA2481ZZ

AWNIA2482ZZ

Failure Message

Action

“Internal failure”

Replace Bluetooth

®

 control unit. Refer to 

AV-88, "Removal and Installation"

. 

“Bluetooth

®

 antenna open”

1.

Inspect harness connection.

2.

Replace Bluetooth

®

 antenna. Refer to 

AV-87, "Removal and Installation"

.

“Bluetooth

®

 antenna shorted”

AV-26

< SYSTEM DESCRIPTION >

[MONOCHROME DISPLAY - W/O BOSE]

DIAGNOSIS SYSTEM (BLUETOOTH® CONTROL UNIT)

“Phone/Send for Hands Free System is stuck”

Check steering wheel audio control switches. Refer to 

AV-81, "Removal and Instal-

lation"

.

“Phone/End for the Hands Free System is stuck”

“Microphone test” (failed interactive test)

1.

Inspect harness between Bluetooth

®

 control unit and microphone.

2.

Replace microphone. Refer to 

AV-86, "Removal and Installation"

 .

Failure Message

Action

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-27

< DTC/CIRCUIT DIAGNOSIS >

[MONOCHROME DISPLAY - W/O BOSE]

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DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure

INFOID:0000000009471169

Regarding Wiring Diagram information, refer to 

AV-54, "Wiring Diagram - Without BOSE Audio system"

.

1.

CHECK FUSES

Check that the following fuses 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 audio unit connector M133. 

2. Check voltage between the audio unit connector M133 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

Inspect audio unit case ground.
Does case ground pass inspection?

YES

>> Inspection End.

NO

>> Repair audio unit case ground.

SUBWOOFER AMP
SUBWOOFER AMP : Diagnosis Procedure

INFOID:0000000009471170

Regarding Wiring Diagram information, refer to 

AV-54, "Wiring Diagram - Without BOSE Audio system"

.

1.

CHECK FUSE

Check for blown fuses.

Unit

Terminals

Signal name

Fuse No.

Audio unit

19

Battery power

24

7

Ignition switch ACC or ON

17

(+)

(-)

OFF

ACC

ON

Connector

Terminal

M133

19

Ground

Battery 
voltage

Battery 
voltage

Battery 
voltage

7

Ground

0V

Battery 
voltage

Battery 
voltage

WKIA5769E