Infiniti G37 Coupe. Manual - part 161

 

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Infiniti G37 Coupe. Manual - part 161

 

 

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-397

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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XM SAT SUBSCRIPTION STATUS 
The XM NavTraffic subscription status can be checked. 

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 situation.
The error record displays the time and place of the most recent occurrence of that error. However, take note of
the following points.
• If there is a malfunction with the GPS antenna circuit board in the AV control unit, the correct date and time

of occurrence may not be able to be displayed.

• Place of the error occurrence is represented by the position of the current location mark at the time an error

occurred. If current location mark has deviated from the correct position, then the place of the error occur-
rence cannot be located correctly.

• The frequency of occurrence is displayed in a count up manner. The actual count up method differs depend-

ing on the error item. 

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. 

• 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 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.

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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-398

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

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

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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-403, "CONSULT - III Function 

(MULTI AV)"

.

CONTROL UNIT (CAN)

CAN initial diagnosis malfunction is detect-
ed.

Replace the 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.

Connection Of Gyro

XM SERIAL COMM Error

CAN Controller Memory Error

Bluetooth Module Connection Error

HDD CONN Error

HDD READ Error

HDD WRITE Error

HDD COMM Error

HDD ACCESS Error

DSP CONN Error

DSP COMM Error

Internal Communication Error

AV control unit power supply and ground 
circuits.

GPS Communication Error

GPS malfunction is detected.

An intermittent error caused by strong radio 
interference may be detected unless any 
symptom (GPS reception error, etc.) oc-
curs.
Replace the AV control unit if the malfunc-
tion occurs constantly.

GPS ROM Error

GPS RAM Error

GPS RTC Error

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-399

< FUNCTION DIAGNOSIS >

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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” is pressed.

Front Display Connection Error

• Display unit power supply and ground 

circuits malfunction is detected.

• Malfunction is detected in communica-

tion circuits between AV control unit and 
display unit.

• Malfunction is detected in communica-

tion signal between AV control unit and 
display unit.

• Display unit power supply and ground 

circuits.

• Communication circuits between AV con-

trol unit and display unit.

GPS Antenna Error

GPS antenna connection malfunction is de-
tected.

GPS antenna.

Camera Control Unit Connection Error

Malfunction is detected in camera connec-
tion recognition circuit between AV control 
unit and camera control unit.

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

XM Antenna Connection Error

Poor connection is detected in satellite ra-
dio antenna.

• Satellite radio antenna feeder.
• Satellite radio antenna.

• AV COMM CIRCUIT
• Internal Communication Error 

• AV control unit power supply and ground 

circuits malfunction detected.

• AV control unit malfunction is detected.

AV control unit power supply and ground 
circuits.

• AV COMM CIRCUIT
• Switches Connection Error

• Multifunction switch power supply and 

ground circuits malfunction is detected.

• Malfunction is detected in AV communi-

cation circuit between AV control unit and 
multifunction switch.

• Malfunction is detected in AV communi-

cation signal between AV control unit and 
multifunction switch.

• Multifunction switch power supply and 

ground circuits.

• AV communication circuit between AV 

control unit and multifunction switch.

• AV COMM CIRCUIT
• Rearview Camera Connection Error

• Camera control unit power supply and 

ground circuits malfunction is detected.

• Malfunction is detected in AV communi-

cation signal between AV control unit and 
camera control unit.

Camera control unit power supply and 
ground circuits.

• AV COMM CIRCUIT
• iPod Connection Error

• iPod adapter power supply and ground 

circuits malfunction is detected.

• Malfunction is detected in AV communi-

cation circuits between camera control 
unit and iPod adapter.

• Malfunction is detected in AV communi-

cation signal between AV control unit and 
iPod adapter.

• iPod adapter power supply and ground 

circuits.

• AV communication circuits between AV 

control unit and iPod adapter.

• AV COMM CIRCUIT
• Rearview Camera Connection Error
• iPod Connection Error

Malfunction is detected in AV communica-
tion circuits between camera control unit 
and the junction of AV control unit and mul-
tifunction switch. 

AV communication circuits between cam-
era control unit and the junction of AV con-
trol unit and multifunction switch.

• AV COMM CIRCUIT
• Switches Connection Error
• Rearview Camera Connection Error
• iPod Connection Error

Malfunction is detected in AV communica-
tion circuits between AV control unit and the 
junction of camera control unit and multi-
function switch.

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

Error item

Description

Possible malfunction factor/Action to take

JSNIA0080GB

AV-400

< FUNCTION DIAGNOSIS >

[BOSE AUDIO WITH NAVIGATION]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV COMM Diagnosis

• Displays the communication status between AV control unit (mas-

ter 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” is pressed.

NOTE:

• Any units with “—” displayed have no history of vehicle connection.

• “Audio” and “Amp” indicate the same status because “Amp” indicates the status of the amplifier integrated in the AV control unit.

• “STRG SW”, “Amp”“XM” indicate the same status as “Audio”.

Hands-Free Phone

The hands-free phone reception volume adjustment, microphone
and speaker test, and memory erase functions are also available.

Camera Cont.

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

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

Items

Status

(Current)

Counter

(Past)

C Tx(ITM–PrimarySW)

OK / UNKWN

OK / 0 – 39

C Rx(PrimarySW–ITM)

OK / UNKWN

OK / 0 – 39

C Rx(STRG SW–ITM)

OK / UNKWN

OK / 0 – 39

C Rx (Audio–ITM)

OK / UNKWN

OK / 0 – 39

C Rx(Amp–ITM)

OK / UNKWN

OK / 0 – 39

C Rx(RearCamera–ITM)

OK / UNKWN

OK / 0 – 39

C Rx(XM–ITM)

OK / UNKWN

OK / 0 – 39

C Rx(iPod–ITM)

OK / UNKWN

OK / 0 – 39

C Rx(Amp–Audio)

C Rx(iPod–Audio)

OK / UNKWN

OK / 0 – 39

C Tx(Audio–ITM)

OK / UNKWN

OK / 0 – 39

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