Nissan Pathfinder. Manual — part 59
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-63
< SYSTEM DESCRIPTION >
[MID AUDIO WITHOUT BOSE]
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DIAGNOSIS SYSTEM (AV CONTROL UNIT)
Description
INFOID:0000000009174420
The AV control unit on board diagnosis includes the following functions:
• A/C and AV switch assembly self diagnosis that checks the ON/OFF operation (continuity) of each switch in
the A/C and AV switch assembly.
NOTE:
The hazard switch and disk eject switch are not included in this operation check.
• AV control unit on board diagnosis performs the following functions listed in the table below:
Perform CONSULT diagnosis if the AV control unit on board diagnosis does not start, the screen does not dis-
play anything, or the A/C and AV switch assembly self diagnosis does not function.
On Board Diagnosis Function
INFOID:0000000009174421
METHOD OF STARTING
A/C and AV Switch Assembly Self Diagnosis
• Press the BACK and UP switches within 10 seconds after turning
the ignition switch from OFF to ACC and hold them for 3 seconds
or more.
• The buzzer sounds, all indicators of the switches illuminate, and
the self-diagnosis mode begins.
• The ON position continuity of each switch can be checked by
pressing the switch. The buzzer sounds if continuity is present.
• The self diagnosis mode is canceled when the ignition switch is
turned OFF.
AV Control Unit Self Diagnosis
1. Turn the ignition ON.
2. Turn the audio system OFF.
Mode
Description
Self Diagnosis
• AV control unit diagnosis.
• Diagnoses the connections across system components (between AV
control unit and each unit).
Confirmation/
Adjustment
Display Diagnosis
• Color tone check using color spectrum bar display and white display.
• Light and shade check by gradation bar display.
Vehicle Signals
Diagnosis of signals can be performed for vehicle speed, parking brake,
lights, ignition and reverse.
Speaker Test
Speaker connection can be confirmed by test tone.
Error History
• The system malfunction and frequency of past occurrences is displayed.
• When malfunctioning item is selected, time and place that the malfunc-
tion last occurred are displayed.
Camera Cont.
• Guiding line position that overlaps rear view camera image can be ad-
justed.
• Configuration stored in the AV control unit can be checked.
Vehicle CAN Diagnosis
Transmit/receive function of CAN communication can be monitored.
AV COMM Diagnosis
Communication condition of each unit of Multi AV system can be moni-
tored.
Delete Unit Connection Log
Erase connection history of unit and error history.
Initialize Settings
Initializes the AV control unit memory.
ALNIA1449ZZ
AV-64
< SYSTEM DESCRIPTION >
[MID AUDIO WITHOUT BOSE]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
3. While pressing the SETTING button, turn the volume control dial
clockwise or counterclockwise for 40 clicks or more. When self-
diagnosis mode begins, a short beep will be heard. Shifting from
current screen to previous screen is performed by pressing
BACK button.
4. The trouble diagnosis initial screen is displayed, and Self Diag-
nosis or Confirmation/Adjustment can be selected.
SELF DIAGNOSIS MODE
AV Control Unit Self Diagnosis
1. Select Self Diagnosis.
2. Self diagnosis screen is displayed. The bar graph visible in center of screen indicates progress of self
diagnosis.
3. Diagnosis results are displayed after self diagnosis is com-
pleted. Unit names and connection lines are color coded accord-
ing to diagnostic results.Control Unit (AV control unit) is
displayed in red.
1: Control Unit (AV control unit) is displayed in red.
ALNIA1450ZZ
SKIB3961E
JSNIA2528ZZ
Diagnosis results
Unit
Connection line
Normal
Green
Green
Connection malfunction
Gray
Yellow
Unit malfunction
1
Red
Green
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-65
< SYSTEM DESCRIPTION >
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• Replace AV control unit if Self Diagnosis did not run because control unit malfunction is indicated. The symptom is AV control
unit internal error. Refer to
AV-187, "Removal and Installation"
.
• If multiple errors occur at the same time for a single unit, the screen switch colors are determined according to the following order
of priority: red > gray.
4. Comments of self diagnosis results can be viewed in the diagno-
sis result screen.
AV Control Unit Self Diagnosis Results
AV Control Unit Confirmation/Adjustment
1. Select Confirmation/Adjustment.
JSNIA0141GB
Only Unit Part Is Displayed In Red
Screen switch
Description
Possible cause
Control unit
Malfunction is detected in AV control unit
power supply or ground circuit.
• AV control unit power supply or ground
circuits. Refer to
.
• If no malfunction is detected in AV control
unit power supply and ground circuits, re-
place AV control unit. Refer to
A Connecting Cable Between Units Is Displayed In Yellow
Area with yellow connection lines
Description
Possible cause
Control unit
⇔ Front Display
Malfunction is detected in serial communi-
cation circuits between AV control unit and
display unit.
Serial communication circuits between AV
control unit and display unit. Refer to
.
Control unit
⇔ SAT
When any of the following is detected:
• satellite radio tuner power supply or
ground circuit malfunction.
• communication circuit malfunction be-
tween AV control unit and satellite radio
tuner.
• request signal circuit malfunction be-
tween AV control unit and satellite radio
tuner.
• Satellite radio tuner power supply or
ground circuits. Refer to
ELLITE RADIO TUNER : Diagnosis Pro-
cedure"
.
• Communication circuit between AV con-
trol unit and satellite radio tuner. Refer to
• Request signal circuit between AV con-
trol unit and satellite radio tuner. Refer to
Control unit
⇔ BTHF
When any of the following is detected:
• Bluetooth
®
control unit power supply or
ground circuit malfunction.
• AV communication circuit malfunction
between AV control unit and Bluetooth
®
control unit.
• Bluetooth
®
control unit power supply or
ground circuits. Refer to
TOOTH® CONTROL UNIT : Diagnosis
Procedure"
• AV communication circuits between AV
control unit and Bluetooth
®
control unit.
AV-66
< SYSTEM DESCRIPTION >
[MID AUDIO WITHOUT BOSE]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
2. Select each switch on the Confirmation/Adjustment screen to
display the relevant trouble diagnosis screen. Press the BACK
switch to return to the initial Confirmation/Adjustment screen.
Display Diagnosis
Vehicle Signals
A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
Speaker Test
AWNIA2562GB
JSNIA2233GB
JSNIA0149GB
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