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Infiniti FX35, FX50 (S51). Manual - part 103

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-185

< SYSTEM DESCRIPTION >

[NAVIGATION (SINGLE MONITOR)]

“User Data Initialization” and “Accessory Number Initialization” are
possible.

CAUTION:

• Never perform Accessory Number Initialization except when

configuration is unsuccessful.

• Accessory Number Initialization requires configuration. For

details, refer to

AV-243, "ADDITIONAL SERVICE WHEN

REPLACING AV CONTROL UNIT : Description"

Version Information

Version information of the AV control unit is displayed.

CONSULT - III Function (MULTI AV)

INFOID:0000000005475013

CONSULT-III FUNCTIONS

CONSULT-III performs the following functions via the communication with the AV control unit.

AV COMMUNICATION

When “AV communication” of “CAN Diag Support Monitor” is selected, the following function will be performed.

ECU IDENTIFICATION

The part number of AV control unit is displayed.

SELF DIAGNOSIS RESULT

• In CONSULT-III self-diagnosis, self-diagnosis results and error history are displayed collectively.
• The current malfunction indicates “CRNT”. The past malfunction indicates “PAST”.
• The timing is displayed as “0” if any of the error codes [U1000], [U1010], [U1300] and [U1310] is detected.

The counter increases by 1 if the condition is normal at the next ignition switch ON cycle.

Self-diagnosis Results Display Item

JSNIA2190ZZ

JSNIA2191ZZ

Diagnosis mode

Description

Ecu Identification

The part number of AV control unit can be checked.

Self Diagnostic Result

Performs a diagnosis on the AV control unit and a connection diagnosis for the communication
circuit of the Multi AV system, and displays the current and past malfunctions collectively.

Data Monitor

The diagnosis of vehicle signal that is input to the AV control unit can be performed.

Work Support

Steering angle sensor can be adjusted.

Configuration

• Read and save the vehicle specification.
• Write the vehicle specification when replacing AV control unit.

AV communication

AV&NAVI C/U

Displays the communication status from AV control unit to each unit as well as the error
counter.

AUDIO

Displays the AV control unit communication status and the error counter.

AV-186

< SYSTEM DESCRIPTION >

[NAVIGATION (SINGLE MONITOR)]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

Error item

Description

Possible malfunction factor/Action to take

CAN COMM CIRCUIT [U1000]

CAN communication malfunction is detect-
ed.

Refer to

AV-251, "Diagnosis Procedure"

CONTROL UNIT (CAN) [U1010]

CAN initial diagnosis malfunction is detect-
ed.

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

CONTROL UNIT (AV) [U1310]

AV communication circuit initial diagnosis
malfunction is detected.

Cont Unit [U1200]

AV control unit malfunction is detected.

GYRO NO CONN [U1201]

G-SENSOR NO CONN [U1202]

CAN CONT [U1216]

BLUETOOTH MODULE [U1217]

SUB CPU CONN [U1228]

iPod CERTIFICATION [U1229]

Built-in AUDIO CONN [U122E]

HDD CONN [U1218]

AV control unit malfunction is detected.

• If the music box function has no mal-

functions, then there is a possibility of
the detection of a temporary malfunc-
tion.

• Replace the AV control unit if the mal-

function occurs constantly.

HDD READ [U1219]

HDD WRITE [U121A]

HDD COMM [U121B]

HDD ACCESS [U121C]

GPS COMM [U1204]

GPS malfunction is detected.

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

GPS ROM [U1205]

GPS RAM [U1206]

GPS RTC [U1207]

USB CONTROLLER [U1225]

USB connection malfunction is detected.

Check that the connection to the USB con-
nector is normal.

DSP CONN [U121D]

AV control unit malfunction is detected.

• If a disc can be played, then there is a

possibility of the detection of a tempo-
rary malfunction.

• Replace the AV control unit if the mal-

function occurs constantly.

DSP COMM [U121E]

DVD COMM [U1227]

AV control unit malfunction is detected.

• If DVD can be played, then there is a

possibility of the detection of a tempo-
rary malfunction.

• Replace the AV control unit if the mal-

function occurs constantly.

CONFIG UNFINISH [U122A]

The writing of configuration data is incom-
plete.

Write configuration data with CONSULT-
III.

ST ANGLE SEN CALIB [U1232]

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

BRC-9, "ADJUSTMENT OF

STEERING ANGLE SENSOR NEUTRAL
POSITION : Special Repair Requirement"

FRONT DISP CONN [U1243]

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

ground circuits malfunction is detected.

• communication circuits between AV

control unit and front display unit.

• Front display unit power supply and

ground circuits.

• Communication circuits between AV

control unit and AV front display unit.

GPS ANTENNA CONN [U1244]

GPS antenna connection malfunction is
detected.

Check the connection of the GPS antenna
connector.

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-187

< SYSTEM DESCRIPTION >

[NAVIGATION (SINGLE MONITOR)]

DATA MONITOR

ALL SIGNALS

• Displays the status of the following vehicle signals inputted into the AV control unit.
• For each signal, actual signal can be compared with the condition recognized on the system.

XM ANTENNA CONN [U1258]

Satellite radio antenna connection mal-
function is detected.

Satellite radio antenna disconnection.

USB OVERCURRENT [U1263]

Detection of overcurrent in USB connect-
er.

Check USB harness between the AV con-
trol unit and USB connector.

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]

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 COMM CIRCUIT [U1300]
• AROUND CAMERA CONN [U125B]

When either one of the following items are
detected:
• around view monitor control unit power

supply and ground circuits are malfunc-
tioning.

• AV communication circuits between

multifunction switch and around view
monitor control unit are malfunctioning.

• Around view monitor control unit power

supply and ground circuits.

• AV communication circuits between

multifunction switch and around view
monitor control unit.

• AV COMM CIRCUIT [U1300]
• SONAR CONN [U125C]

When either one of the following items are
detected:
• sonar control unit power supply and

ground circuits are malfunctioning.

• AV communication circuits between AV

control unit and sonar control unit are
malfunctioning.

• Sonar control unit power supply and

ground circuits.

• AV communication circuits between AV

control unit and sonar control unit.

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]
• AROUND CAMERA CONN [U125B]

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

Display Item

Display

Vehicle status

Remarks

VHCL SPD SIG

Vehicle speed >0 km/h (0 MPH)

Changes in indication may be delayed. This is
normal.

Off

Vehicle speed =0 km/h (0 MPH)

PKB SIG

Parking brake is applied.

Off

Parking brake is released.

ILLUM SIG

Block the light beam from the auto
light optical sensor when the light
SW is ON.

—

Off

Expose the auto light optical sensor
to light when the light SW is OFF or
ON.

IGN SIG

Ignition switch ON

Off

Ignition switch in ACC position

REV SIG

Selector lever in R position

Changes in indication may be delayed. This is
normal.

Off

Selector lever in any position other
than R

SIDE VIEW SW

Off

This item is displayed, but cannot be
monitored.

—

AV-188

< SYSTEM DESCRIPTION >

[NAVIGATION (SINGLE MONITOR)]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

SELECTION FROM MENU

Allows the technician to select which vehicle signals should be displayed and displays the status of the
selected vehicle signals.

WORK SUPPORT

Adjusts the neutral position of the steering angle sensor.

CAUTION:

For vehicles with VDC, adjust the steering angle sensor neutral position on the ABS actuator control
unit side.

CONFIGURATION

Configuration has three functions as follows.

ROOM LAMP

After opening any door; 5 seconds.

Check 10 seconds later, after closing all doors.

Off

Except for above.

Display Item

Display

Vehicle status

Remarks

Item to be selected

Description

VHCL SPD SIG

The same as when “ALL SIGNALS”
is selected.

PKB SIG

ILLUM SIG

IGN SIG

REV SIG

SIDE VIEW SW

ROOM LAMP

Item

Description

ST ANGLE SENSOR ADJUSTMENT

Adjusts the neutral position of the steering angle sensor.

Function

Description

READ CONFIGURATION

• Reads the vehicle configuration of current AV control unit.
• Saves the read vehicle configuration.

WRITE CONFIGURATION-Manual selection

Writes the vehicle configuration with manual selection.

WRITE CONFIGURATION-Config file

Writes the vehicle configuration with saved data.

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