Infiniti EX35. Manual - part 63

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-33

< FUNCTION DIAGNOSIS >

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Speaker Test

Select “SPEAKER DIAGNOSIS” to display the Speaker Diagnosis
screen. Press “START and NEXT” to generate a test tone in a
speaker. Press “Start” to generate a test tone in the next speaker.
Press “End” to stop the test tones.
NOTE:
The frequency of test tone emitted from each speaker is as follows.

*: Squawker

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 SW 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 condition.
Count up method A
• The counter resets to 0 if an error occurs when the IGN switch is turned ON. The counter increases by 1 if

the condition is normal at the next IGN 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-III.

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

even if the 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.

Lights

ON

Light switch ON

—

OFF

Light switch OFF

Ignition

ON

Ignition switch ON

—

OFF

Ignition switch in the ACC position

Reverse

ON

Shift the selector lever to the “R” 
position

Changes in indication may be delayed. This is normal.

OFF

Shift the selector lever to a position 
other than the “R” position

Diagnosis item

Display

Vehicle status

Remarks

Tweeter*

: 3 kHz

Front speaker

: 300 Hz

Rear speaker

: 1 kHz

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 communication)

Count up method B

Other than the above

AV-34

< FUNCTION DIAGNOSIS >

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DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Error item
Error items may be displayed simultaneously according to the cause. If error items are displayed simulta-
neously, the detection of the cause can be detected 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-III, and 
then repair the malfunctioning parts accord-
ing to the diagnosis results.
Refer to 

AV-37, "CONSULT-III Function 

(MULTI AV)"

.

CONTROL UNIT (CAN)

CAN initial diagnosis malfunction is detect-
ed.

Replace AV control unit.

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

Front Display Connection Error

When either one of the following items 
are detected:

• Display unit power supply or ground cir-

cuits malfunction are detected.

• Malfunction is detected in the communi-

cation circuits between AV control unit 
and display unit.

• Display unit power supply and ground 

circuits.

• Communication circuits between AV con-

trol unit and display unit.

Camera Control Unit Connection Error

Malfunction is detected in the camera con-
nection recognition circuit between AV con-
trol unit and camera control unit.

Camera-connection recognition circuits be-
tween AV control unit and camera control 
unit.

SAT Connection Error

When either one of the following items 
are detected:

• Satellite radio tuner power supply or 

ground circuits malfunction are detected.

• Malfunction is detected in the communi-

cation circuits between AV control unit 
and satellite radio tuner.

• Malfunction is detected in the request 

signal circuits between AV control unit 
and satellite radio tuner.

• Satellite radio tuner power supply and 

ground circuits.

• Communication circuits between AV con-

trol unit and satellite radio tuner.

• Request signal circuit between AV con-

trol unit and satellite radio tuner.

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-35

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Vehicle CAN Diagnosis

• CAN communication status and error counter is displayed.
• The error counter displays “OK” if a 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

• Displays the communication status between the AV control unit

(master unit) and each unit.

• 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.

Camera Cont.

The two functions of “Connection Confirmation” and “Adjust Offset of Rear View Camera” are available.
CONNECTION CONFIRMATION

• AV COMM CIRCUIT
• Switches Connection Error

When either one of the following items 
are detected:

• Multifunction switch power supply or 

ground circuits malfunction are detected.

• Malfunction is detected in the AV com-

munication circuits between AV control 
unit and multifunction switch.

• Multifunction switch power supply and 

ground circuits.

• AV communication circuits between AV 

control unit and multifunction switch.

• AV COMM CIRCUIT
• Rear View Camera Connection Error

When either one of the following items 
are detected:

• Camera control unit power supply or 

ground circuits malfunction are detected.

• Malfunction is detected in the AV com-

munication circuits between camera con-
trol unit and the junction between AV 
control unit and multifunction switch.

• Camera control unit power supply and 

ground circuits.

• AV communication circuits between cam-

era control unit and the junction between 
AV control unit and multifunction switch.

• AV COMM CIRCUIT
• Switches Connection Error
• Rear View Camera Connection Error

Malfunction is detected in the AV communi-
cation circuits between AV control unit and 
the junction between multifunction switch 
and camera control unit.

AV communication circuits between AV 
control unit and the junction between multi-
function switch and camera control unit.

Error item

Description

Possible malfunction factor/Action to take

Items

Display (Current)

Malfunction counter

(Past)

Tx(HVAC)

OK / UNKWN

OK / 0 – 39

Rx(ECM)

OK / UNKWN

OK / 0 – 39

Rx(Cluster)

OK / UNKWN

OK / 0 – 39

Rx(BCM)

OK / UNKWN

OK / 0 – 39

Rx(HVAC)

OK / UNKWN

OK / 0 – 39

Rx(USM)

OK / UNKWN

OK / 0 – 39

JSNIA0080GB

Items

Status

(Current)

Counter

(Past)

C Tx(ITM–SW)

OK / UNKWN

OK / 0 - 39

C Rx(PrimarySW–ITM)

OK / UNKWN

OK / 0 - 39

C Rx(XM–ITM)

—

—

JSNIA0213GB

AV-36

< FUNCTION DIAGNOSIS >

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DIAGNOSIS SYSTEM (AV CONTROL UNIT)

The steering angle sensor, reverse signal and vehicle speed sensor
can be inspected.

ADJUST OFFSET OF REAR VIEW CAMERA
Use this mode to adjust the guide line display position of the rear
view monitor if necessary after removing the rear view monitor cam-
era.

Delete Unit Connection Log

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

Initialize Settings

JSNIA0084GB

Diagnosis item

Display

Vehicle status

Steer. Angle Sensor

ON

When steering the vehicle with ignition switch ON (remains ON until connection mode is 
stopped when it is turned ON)

OFF

• Ignition switch ACC
• No steering with ignition switch ON

—

Malfunction detected in camera connection recognition signal

Reverse Sensor

ON

Shift the selector lever to the “R” position with ignition switch ON

OFF

• Ignition switch at ACC
• Shift the selector lever to a position other than the “R” position with ignition switch ON

—

Malfunction detected in camera-connection recognition signal

Vehicle Speed Sensor

ON

Vehicle speed is more than 0 km/h (0 MPH) with ignition switch ON

OFF

• Ignition switch ACC
• Vehicle speed is 0 km/h (0 MPH) with ignition switch ON

—

Malfunction detected in camera connection recognition signal

Side view Switch

—

Not used

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JSNIA0154GB