Nissan Murano. Manual - part 101

AV-182

< SYSTEM DESCRIPTION >

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DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Display Diagnosis

Vehicle Signals

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

JSNIA2233GB

JSNIA0149GB

Diagnosis item

Display

Vehicle status

Remarks

Vehicle speed

ON

Vehicle speed > 0 km/h (0 MPH)

Changes in indication may be delayed. This is normal.

OFF

Vehicle speed = 0 km/h (0 MPH)

Parking brake

ON

Parking brake is applied.

OFF

Parking brake is released.

Lights

ON

Lighting switch is ON

—

OFF

Lighting switch is OFF

Ignition

ON

Ignition switch is ON

—

OFF

Ignition switch is in ACC position

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-183

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Speaker Test

Select “Speaker Test” to display the Speaker Diagnosis screen.
Press “Start” to generate a test tone in a speaker. Press “Start” again
to generate a test tone in the next speaker. Press “End” to stop the
test tones.

Climate Control

Refer to “HEATER & AIR CONDITIONING CONTROL SYSTEM” for details.

Error History

The self-diagnosis results are judged depending on whether any error occurs from when “Self-diagnosis” is
selected until the self-diagnosis results are displayed.
However, the diagnosis results are judged normal if an error has occurred before the ignition switch is turned
ON and then no error has occurred until the self-diagnosis start. Check the “Error Record” to detect any error
that may have occurred before the self-diagnosis start because of this situation.
The error record displays the time and place of the most recent occurrence of that error. However, take note of
the following points.
The frequency of occurrence is displayed in a count up manner. The actual count up method differs depending
on the error item. 

Count up method A

• The counter resets to 0 if an error occurs when ignition switch is turned ON. The counter increases by 1 if

the condition is normal at a next ignition ON cycle. 

• 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.

Count up method B

• The counter increases by 1 if an error occurs when ignition switch is ON. The counter will not decrease even

if the condition is normal at the next ignition 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.

Reverse

ON

Selector lever is in R position

Changes in indication may be delayed. This is normal.

OFF

Selector lever is in any position oth-
er than R

Diagnosis item

Display

Vehicle status

Remarks

JSNIA0150GB

Display type of occur-

rence frequency

Error history display item

Count up method A

CAN communication line, control unit (CAN), AV communication line, control unit (AV)

Count up method B

Other than the above

AV-184

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DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Error item
Some error items may be displayed simultaneously according to the cause. If some error items are displayed
simultaneously, the detection of the cause can be performed by the combination of display items

JSNIA0151GB

Error item

Description

Possible malfunction factor/Action to take

CAN COMM CIRCUIT

CAN communication malfunction is detect-
ed.

Perform diagnosis with CONSULT, and 
then repair the malfunctioning parts accord-
ing to the diagnosis results.
Refer to 

AV-187, "CONSULT Function"

.

CONTROL UNIT (CAN)

CAN initial diagnosis malfunction is detect-
ed.

Replace the AV control unit if the malfunc-
tion occurs constantly.
Refer to 

AV-276, "Exploded View"

.

CONTROL UNIT (AV)

AV communication circuit initial diagnosis 
malfunction is detected.

FLASH-ROM Error Of Control Unit

AV control unit malfunction is detected.

CAN Controller Memory Error

Steer. Angle Sensor Calibration

Predictive course line center position ad-
justment of the steering angle sensor is in-
complete.

Adjust the predictive course line center po-
sition of the steering angle sensor.
Refer to 

AV-187, "CONSULT Function"

.

Front Display Connection Error

When either one of the following items are 
detected:
• display unit power supply and ground cir-

cuits are malfunctioning.

• serial communication circuits between 

AV control unit and display unit are mal-
functioning.

• Display unit power supply and ground 

circuits.
Refer to 

AV-244, "DISPLAY UNIT : Diag-

nosis Procedure"

.

• Serial communication circuits between 

AV control unit and display unit.

XM Connection Error

When either one of the following items is 
detected:
• satellite radio tuner power supply and 

ground circuits are malfunctioning.

• communication circuits between AV con-

trol unit and satellite radio tuner are mal-
functioning.

• request signal circuit between AV control 

unit and satellite radio tuner are malfunc-
tioning.

• Satellite radio tuner power supply and 

ground circuits.
Refer to 

AV-246, "SATELLITE RADIO 

TUNER : Diagnosis Procedure"

.

• Communication circuits between AV con-

trol unit and satellite radio tuner.

• Request signal circuit between AV con-

trol unit and satellite radio tuner.

• AV COMM CIRCUIT
• Switches Connection Error

When either one of the following items are 
detected:
• multifunction switch power supply and 

ground circuits are malfunctioning.

• AV communication circuits between AV 

control unit and multifunction switch are 
malfunctioning.

• Multifunction switch power supply and 

ground circuits.

• AV communication circuits between AV 

control unit and multifunction switch.

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-185

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Camera Cont.

The two functions of “Adjust Guide Lines”, “Display Factory configu-
ration” are available.

Adjust Guide Lines

• Use this mode to adjust the guide line display position of the rear

view monitor if necessary after removing the rear view monitor
camera.

Display Factory configuration

• Configuration stored in the AV control unit can be checked.

Vehicle CAN Diagnosis

• AV COMM CIRCUIT
• H/F Unit Connection Error

When either one of the following items are 
detected:
• TEL adapter unit power supply and 

ground circuits are malfunctioning.

• AV communication circuits between AV 

control unit and TEL adapter unit are 
malfunctioning.

• TEL adapter unit power supply and 

ground circuits.
Refer to 

AV-247, "TEL ADAPTER UNIT : 

Diagnosis Procedure"

.

• AV communication circuits between AV 

control unit and TEL adapter unit.

• AV COMM CIRCUIT
• Switches Connection Error
• H/F Unit Connection Error

AV communication circuits between AV 
control unit and multifunction switch are 
malfunctioning.

AV communication circuits between AV 
control unit and multifunction switch.

Error item

Description

Possible malfunction factor/Action to take

JSNIA2230ZZ

JSNIA2231ZZ

JSNIA2234ZZ