Nissan Murano. Manual - part 72

AV-66

< SYSTEM DESCRIPTION >

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DIAGNOSIS SYSTEM (AV CONTROL UNIT)

DATA MONITOR

NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.

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.

ST ANGLE SEN CALIB [1232]

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

Adjust the predictive course line center 
position 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:
• display unit power supply and ground 

circuits 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-118, "DISPLAY UNIT : Di-

agnosis Procedure"

.

• Serial communication circuits between 

AV control unit and display unit.

SAT CONN [U1255]

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

ground circuits are malfunctioning.

• communication circuits between AV 

control unit and satellite radio tuner are 
malfunctioning.

• request signal circuit between AV con-

trol unit and satellite radio tuner are mal-
functioning.

• Satellite radio tuner power supply and 

ground circuits.
Refer to 

AV-119, "SATELLITE RADIO 

TUNER : Diagnosis Procedure"

.

• Communication circuits between AV 

control unit and satellite radio tuner.

• Request signal circuit between AV con-

trol unit and satellite radio tuner.

• 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]
• HAND FREE CONN [U1256]

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-120, "TEL ADAPTER UNIT 

: Diagnosis Procedure"

.

• AV communication circuits between AV 

control unit and TEL adapter unit.

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]
• HAND FREE CONN [U1256]

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

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)

PKB SIG

On

Parking brake is applied.

Off

Parking brake is released.

AV

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-67

< SYSTEM DESCRIPTION >

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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 includes functions as follows.

ILLUM SIG

On

Lighting switch is ON.

—

Off

Lighting switch is OFF.

IGN SIG

On

Ignition switch is ON

Off

Ignition switch is in ACC position

REV SIG

On

Selector lever is in R position

Changes in indication may be delayed. This is 
normal.

Off

Selector lever is in any position other 
than R

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

Item

Description

ST ANGLE SENSOR ADJUSTMENT

Adjusts the neutral position of the steering angle sensor.

Function

Description

Read/Write Configuration

Before Replace ECU

Allows the reading of vehicle specification written in AV control unit 
to store the specification in CONSULT.

After Replace ECU

Allows the writing of the vehicle information stored in CONSULT 
into the AV control unit.

Manual Configuration

Allows the writing of the vehicle specification into the AV control 
unit by hand.

AV-68

< SYSTEM DESCRIPTION >

[BASE AUDIO WITH COLOR DISPLAY]

DIAGNOSIS SYSTEM (TEL ADAPTER UNIT)

DIAGNOSIS SYSTEM (TEL ADAPTER UNIT)

Description

INFOID:0000000009721604

 During on board diagnosis the diagnosis function of TEL adapter unit starts with the operation of the steering
switch and performs the diagnosis when ignition switch ACC. 

On Board Diagnosis Function

INFOID:0000000009721605

ON BOARD DIAGNOSIS ITEM

The on board diagnosis has 3 modes: the self-diagnosis mode that performs the trouble diagnosis, the
speaker adaptation data deleting mode and the hands-free phone system initialization mode.

CAUTION:

• Perform the diagnosis with the vehicle stopped.
• Perform STEP2 if necessary.

Self-diagnosis results

Self-diagnosis mode reads out the self-diagnosis results.
NOTE:
• Error count is read out simultaneously when reading out the DTC name.
• The errors are read out continuously when some errors occur at the same time.

Self-diagnosis results

The Details of Error Count

The error count guides “0” when the error occurs. The next time it counts up “1” if it is normal with the ignition
switch ON. It continues the count up unless the initialization of hands-free phone system is performed.

STEP

MODE

Description

STEP1

Self-diagnosis

The self-diagnosis mode performs the microphone test and 
the diagnosis of TEL adapter unit, TEL antenna and steering 
unit, and then reads out the results with the sound and indi-
cates them on the display.

STEP2

Speaker adaptation data deleting

The speaker adaptation data deleting mode can delete the 
speaker adaptation data.

Hands-free phone system initialization

Hands-free phone system initialization mode can perform 
the initialization of hands-free phone system.

DTC

DTC name

Possible causes

DTC 10000

INTERNAL FAILURE

TEL adapter unit

DTC 01000

ANT. SHORT TO BATT OR OPEN

TEL antenna

DTC 00100

ANT. SHORT TO GROUND

DTC 00010

STEERING REMOTE BUTTON STUCK A

Steering switch

DTC 00001

STEERING REMOTE BUTTON STUCK B

DTC 00000

THERE ARE NO FAILURE RECORDS TO REPORT

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AV

DIAGNOSIS SYSTEM (TEL ADAPTER UNIT)

AV-69

< SYSTEM DESCRIPTION >

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FLOW CHART OF TROUBLE DIAGNOSIS

JSNIA2498GB