Nissan Teana J32. Manual - part 53

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-67

< FUNCTION DIAGNOSIS >

[BASE AUDIO AND DISPLAY SYSTEM]

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.

AV COMM Diagnosis

• AV COMM CIRCUIT
• Rear view Camera connection Error

With rear control switch
When either one of the following items is
detected:
• camera control unit power supply and

ground circuits are malfunctioning.

• AV communication signal between AV

control unit and Camera control unit is
malfunctioning.

• AV communication circuits between mul-

tifunction switch and rear control switch
are malfunctioning.

• AV communication circuits between rear

control switch and camera control unit
are malfunctioning.

• Camera control unit power supply and

ground circuits

• AV communication circuits between mul-

tifunction switch and rear control switch

• AV communication circuits between rear

control switch and camera control unit

Without rear control switch
When either one of the following items is
detected:
• camera control unit power supply and

ground circuits are malfunctioning.

• AV communication circuits between AV

control unit and camera control unit is
malfunctioning.

• AV communication signal between AV

control unit and camera control unit is
malfunctioning.

• Camera control unit power supply and

ground circuits

• AV communication circuits between mul-

tifunction switch and camera control unit

• AV COMM CIRCUIT
• Switches Connection Error
• Rear view Camera connection Error

When either one of the following items is
detected:
• AV communication circuits between AV

control unit and multifunction switch are
malfunctioning.

• AV communication signal between AV

control unit and multifunction switch is
malfunctioning.

AV communication circuits between AV
control unit and multifunction switch

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

JSNIA1287GB

AV-68

< FUNCTION DIAGNOSIS >

[BASE AUDIO AND DISPLAY SYSTEM]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

• 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.

• If it resets, the error counter is erased.

Delete Unit Connection Log

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

CONSULT-III Function (MULTI AV)

INFOID:0000000003882712

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.

SELF-DIAGNOSIS RESULTS

• In CONSULT-III self-diagnosis, self-diagnosis results and error history are displayed collectively.
• 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

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(RrSeatSW–ITM)

OK / UNKWN

OK / 0 – 39

C Rx(RearCamera–ITM)

OK / UNKWN

OK / 0 – 39

JSNIA1439GB

JSNIA0154GB

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.

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.

Error item

Detection logic

Possible malfunction factor/Action to take

CAN COMM CIRCUIT [U1000]

CAN communication malfunction is detect-
ed.

Refer to

AV-72, "Diagnosis Procedure"

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

AV-69

< FUNCTION DIAGNOSIS >

[BASE AUDIO AND DISPLAY SYSTEM]

CONTROL UNIT (CAN) [U1010]

CAN initial diagnosis malfunction is detect-
ed.

Replace the AV control unit.
Refer to

AV-170, "Removal and Installa-

tion"

CONTROL UNIT (AV) [U1310]

AV communication circuit initial diagnosis
malfunction is detected.

Control Unit FLASH-ROM [U1200]

AV control unit malfunction is detected.

CAN CONT [U1216]

FRONT DISP CONN [U1243]

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

cuits are malfunctioning.

• serial communication circuits between

display unit and AV control unit are mal-
functioning.

• serial communication signal between

display unit and AV control unit is mal-
functioning.

• Display unit power supply and ground

circuits
Refer to

AV-82, "DISPLAY UNIT : Diag-

nosis Procedure"

• Serial communication circuits between

display unit and AV control unit

CAMERA CONT. CONN [U1250]

A malfunction is detected in camera con-
nection recognition signal circuit.

Camera connection recognition signal cir-
cuit
Refer to

AV-79, "Diagnosis Procedure"

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

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

ground circuits are malfunctioning.

• AV communication circuits between AV

control unit and multifunction switch are
malfunctioning.

• AV communication signal between AV

control unit and multifunction switch is
malfunctioning.

• Multifunction switch power supply and

ground circuits
refer to

AV-83, "MULTIFUNCTION

SWITCH : Diagnosis Procedure"

• AV communication circuits between AV

control unit and multifunction switch

Error item

Detection logic

Possible malfunction factor/Action to take

AV-70

< FUNCTION DIAGNOSIS >

[BASE AUDIO AND DISPLAY SYSTEM]

DIAGNOSIS SYSTEM (AV CONTROL UNIT)

DATA MONITOR

ALL SIGNALS

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

SELECTION FROM MENU

• AV COMM CIRCUIT [U1300]
• REAR-CAMERA LAN CONN [U1252]

With rear control switch
When either one of the following items is
detected:
• camera control unit power supply and

ground circuits are malfunctioning.

• AV communication signal between AV

control unit and Camera control unit is
malfunctioning.

• AV communication circuits between mul-

tifunction switch and rear control switch
are malfunctioning.

• AV communication circuits between rear

control switch and camera control unit
are malfunctioning.

• Camera control unit power supply and

ground circuits
Refer to

AV-84, "CAMERA CONTROL

UNIT : Diagnosis Procedure"

• AV communication circuits between mul-

tifunction switch and rear control switch

• AV communication circuits between rear

control switch and camera control unit

Without rear control switch
When either one of the following items is
detected:
• camera control unit power supply and

ground circuits are malfunctioning.

• AV communication circuits between AV

control unit and camera control unit is
malfunctioning.

• AV communication signal between AV

control unit and camera control unit is
malfunctioning.

• Camera control unit power supply and

ground circuits
Refer to

AV-84, "CAMERA CONTROL

UNIT : Diagnosis Procedure"

• AV communication circuits between mul-

tifunction switch and camera control unit

• AV COMM CIRCUIT [U1300]
• SWITCH CONN [U1240]
• REAR-CAMERA LAN CONN [U1252]

When either one of the following items is
detected:
• AV communication circuits between AV

control unit and multifunction switch are
malfunctioning.

• AV communication signal between AV

control unit and multifunction switch is
malfunctioning.

AV communication circuits between AV
control unit and multifunction switch

Error item

Detection logic

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
switch is ON .

—

Off

Expose the auto light optical sensor
to light when the light switch 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

Content .. 51 52 53 54 ..