Nissan Pathfinder (2009 year). Manual - part 30

 

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Nissan Pathfinder (2009 year). Manual - part 30

 

 

AV-52

< FUNCTION DIAGNOSIS >

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DIAGNOSIS SYSTEM (AV CONTROL UNIT)

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV CONTROL UNIT

AV CONTROL UNIT : Diagnosis Description

INFOID:0000000003938958

DESCRIPTION 

• Diagnosis function consists of the "Self-Diagnosis" mode performed automatically and the "Confirmation/

Adjustment" mode operated manually.

• "Self-Diagnosis" mode checks for connections between the units constituting this system, analyzes each

individual unit at the same time, and displays the results on the LCD screen.

• "Confirmation/Adjustment" mode is used to perform trouble diagnosis that requires operation and judgment

by an operator (trouble that cannot be automatically judged by the system), to check/change the set value,
and to display the error history of the AV control unit.

DIAGNOSIS ITEM 

OPERATION PROCEDURE 

1.

Start the engine.

2.

Turn the audio system off.

3.

While pressing the “SETTING” button, turn the volume control
dial counterclockwise 30 clicks or more.

Mode

Description

Self-diagnosis

• AV control unit diagnosis
• Analyzes connection between the AV control unit, front display, Blue-

tooth, DVD deck, satellite tuner,  switches and rear view camera con-
trol unit.

CONFIRMATION/
ADJUSTMENT

Display diagnosis

Color spectrum bar

Color tone of the screen can be checked by the display of a color bar.

Gradation bar

Shading of the screen can be checked by the display of a gray scale.

Vehicle signals

The following vehicle signals are analyzed: Vehicle speed signal, park-
ing brake signal, light signal, ignition switch signal, and reverse signal.

Speaker test

Connection can be checked by sending a test tone to each speaker.

Climate control

Start automatic air conditioner self-diagnosis

Error history

Diagnosis results previously stored in the memory are displayed in this 
mode.

Vehicle CAN diagnosis

The transmitting/receiving of CAN communication can be monitored.

AV COMM diagnosis

The transmitting/receiving of AV communication can be monitored.

Delete connection log

Erase the error history and connection history of the unit.

Initialize settings

All audio settings are reset to default levels.

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2009 Pathfinder

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-53

< FUNCTION DIAGNOSIS >

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4.

The initial trouble diagnosis screen will be displayed, and items
“Self-Diagnosis” and “Confirmation/Adjustment” can be
selected.

SELF-DIAGNOSIS

1.

Perform self-diagnosis by selecting “Self-Diagnosis”.
• Self-diagnosis subdivision screen is displayed, and the self-

diagnosis mode starts.

• A bar graph visible on the center of the self-diagnosis subdivi-

sion screen indicates progress of the trouble diagnosis.

NOTE:
Self-diagnosis requires approximately 10 seconds to complete.

2.

Diagnosis results are displayed after the self-diagnosis is com-
pleted. The unit names and the connection lines are color-coded
according to the diagnostic results.

Note:

• Only the AV control unit is displayed in red.

• If multiple malfunctions occur at the same time for a single unit, the screen switch colors are determined according to the follow-

ing order of priority: red > yellow > gray.

3.

Select a component on the “Self Diagnosis” screen and com-
ments for the diagnosis results will be shown.

Self-Diagnosis Results

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Diagnosis results

Unit

Connection line

Normal

Green

Green

Connection malfunc-
tion

Gray

Yellow

Unit malfunction 

Note

Red

Green

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2009 Pathfinder

AV-54

< FUNCTION DIAGNOSIS >

[MID AUDIO]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Area with yellow connection lines

Description

Possible malfunction location / Action 

to take

AV control unit malfunction is detect-
ed

Replace the AV control unit. Refer to 

AV-142, "Removal and Installation"

.

Poor connection is detected for the 
display unit

• Harness or connector
• AV control unit
• Display unit

Switch malfunction is dectected

Perform A/C and AV switch assembly 
diagnostics.  Refer to 

AV-58, "A/C 

AND AV SWITCH ASSEMBLY : Com-
ponent Function Check"

Poor connection is detected for the 
DVD player.

• Harness or connector
• AV control unit
• DVD player

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DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-55

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CONFIRMATION/ADJUSTMENT MODE

1.

Start the diagnosis function and select “Confirmation/Adjustment”. The confirmation/adjustment mode
indicates where each item can be checked or adjusted.

2.

Select each item on the “Confirmation/Adjustment” mode screen
to display the relevant trouble diagnosis screen. Press the
“BACK” button or touch "BACK" on the touch screen to return to
the initial Confirmation/Adjustment Mode screen.

Display Diagnosis

Vehicle Signals

Poor connection is detected for the 
rear view camera control unit.

• Harness or connector
• AV control unit
• Rear view camera control unit

Poor connection is detected for the 
satellite radio tuner.

• Harness or connector
• AV control unit
• Satellite radio tuner

Area with yellow connection lines

Description

Possible malfunction location / Action 

to take

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AV-56

< FUNCTION DIAGNOSIS >

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DIAGNOSIS SYSTEM (AV CONTROL UNIT)

A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.

Speaker Test

Select “Speaker Test” to display the speaker diagnosis screen. Press
“Start” to generate a test tone in speakers. Touch “End” to stop the
test tones.

Error History

The self-diagnosis results are judged depending on whether any
error occurs from when "Self-diagnosis" isselected until the self-
diagnosis results are displayed.
However, the diagnosis results are judged normal if an error has
occurred before the ignition SW is turned ON and then no error has
occurred until the self-diagnosis start. Check the "Error History" to
detect any error that may have occurred before the self-diagnosis
start because of this situation.
Count up method A
• The counter resets to 0 if an error occurs when IGN switch is

turned ON. The counter increases by 1 if the condition is normal at
a next IGN ON cycle.

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Diagnosis item

Dis-
play

Vehicle status

Remarks

Vehicle speed

ON

Vehicle speed > 0 km/h

Changes in indication may be delayed by approxi-
mately 1.5 seconds. This is normal.

OFF

Vehicle speed = 0 km/h

−

Ignition switch in ACC position

Parking brake

ON

Parking brake is applied.

OFF

Parking brake is released.

Lights

ON

Light switch ON

Block the light beam from the auto light optical sensor.

OFF

Light switch OFF

Ignition

ON

Ignition switch ON

—

OFF

Ignition switch in ACC position

Reverse

ON

Selector lever in R position

Changes in indication may be delayed by approxi-
mately 1.5 seconds. This is normal.

OFF

Selector lever in any position other 
than R

−

Ignition switch in ACC position

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AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-57

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• The counter upper limit is 39. Any counts exceeding 39 are ignored. The counter can be reset (no error-

record display) with the "Delete log" switch or CONSULT-III.

Count up method B
• The counter increases by 1 if an error occurs when IGN switch is ON. The counter will not decrease even

ifthe condition is normal at the next IGN ON cycle.

• The counter upper limit is 50. Any counts exceeding 50 are ignored. The counter can be reset (no error-

record display) with the "Delete log" switch or CONSULT-III.

Vehicle CAN Diagnosis

• CAN communication status and error counter is displayed.
• The error counter displays “OK” if any malfunction was not

detected in the past and displays “0” if a malfunction is detected. It
increases by 1 if the condition is normal at the next ignition switch
ON cycle. The upper limit of the counter is 39.

• The error counter is erased if reset.

AV COMM Diagnosis

• AV communication status and error counter is displayed.
• The error counter displays “OK” if any malfunction was not

detected in the past and displays “0” if a malfunction is detected. It
increases by 1 if the condition is normal at the next ignition switch
ON cycle. The upper limit of the counter is 39.

• The error counter is erased if reset.

Delete Unit Connection Log

Deletes any unit connection records and error records from the AV
control unit memory. (Clear the records of the unit that has been
removed)

Inititialize Settings

Display method of occur-

rence frequency

Error history diplay item

Count up method A

CAN communication line, control unit (CAN), AV communication line, control unit (AV communica-
tion)

Count up method B

Other than above

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2009 Pathfinder

AV-58

< FUNCTION DIAGNOSIS >

[MID AUDIO]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Initializes the AV control unit memory.

AV CONTROL UNIT : CONSULT-III Function

INFOID:0000000003938959

CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.

DATA MONITOR

Display Item List

A/C AND AV SWITCH ASSEMBLY

A/C AND AV SWITCH ASSEMBLY : Component Function Check

INFOID:0000000003938960

A/C and AV switch assembly self-diagnosis function

Description

The ON/OFF operation (continuity) of each switch in the A/C and AV switch assembly can be checked.

Self-diagnosis mode

• Press the “BACK” button and the “UP” button within 10 seconds

after turning the ignition switch from OFF to ACC and hold them for
3 seconds or more. When the self-diagnosis mode starts, a beep
will sound and all LED indicators of the  switch will illuminate.

• The continuity of each switch and control dial of the A/C and AV

switch assembly can be checked. If the switch is operating nor-
mally, the system will beep and the LED's will illuminate when each
switch is operated.

Finishing self-diagnosis mode

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MULTI AV diagnosis mode

Description

SELF-DIAG RESULTS

Displays AV control unit self-diagnosis results.

DATA MONITOR

Displays AV control unit input/output data in real time.

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication can be read.

AV COMM MONITOR

Allows the technician to monitor the status of the Multi AV system communication signals.

ECU PART NUMBER

The part number of AV control unit can be checked.

Display item [unit]

ALL

SIGNALS

SELECTION 

FROM MENU

Description

VHCL SPD SIG [ON/OFF]

X

X

Displays “ON” when vehicle speed > 0 km/h. Displays “OFF” when ve-
hicle speed = 0 km/h.

PKB SIG [ON/OFF]

X

X

Displays [ON/OFF] condition of parking brake switch.

ILLUM SIG [ON/OFF]

X

X

Displays [ON/OFF] condition of lighting switch.

IGN SIG [ON/OFF]

X

X

Displays [ON/OFF] condition of ignition switch.

REV SIG [ON/OFF]

X

X

Displays [ON/OFF] condition of back-up lamp switch.

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AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-59

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

2009 Pathfinder

 

 

 

 

 

 

 

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