Nissan Pathfinder: Audio, Visual & Navigation System - System Description

• Component Parts ➤
• System ➤
• Diagnosis System (av Control Unit)
• Diagnosis System (bose Speaker Amp.)

Component Parts ➤ Nissan Pathfinder 5th Gen

System ➤ Nissan Pathfinder R53

Diagnosis System (av Control Unit) Nissan Pathfinder

Description

The AV control unit on board diagnosis performs the following functions listed in the table below:

Perform CONSULT diagnosis if the AV control unit on board diagnosis does not start, or the screen does not display anything.

On Board Diagnosis Function

METHOD OF STARTING

AV Control Unit Self Diagnosis

1. Ignition switch ON.

2. Audio system OFF.

3. While MENU button is pressed, rotate the TUNE-SCROLL dial counterclockwise for 3 or more clicks, clockwise for 3 or more clicks, counterclockwise for 3 or more clicks. Shifting from current screen to previous screen is performed by pressing BACK button.

   

4. The trouble diagnosis initial screen is displayed, and “Self-Diagnosis” and “Confirmation/Adjustment” can be selected.

   

SELF-DIAGNOSIS MODE

1. Start the self-diagnosis function and select “Self Diagnosis”.

   • Self-diagnosis subdivision screen is displayed, and the self-diagnosis mode starts.

   • The bar graph visible on the center of the self-diagnosis subdivision screen indicates progress of the trouble diagnosis.

2. Diagnosis results are displayed after the self-diagnosis is completed. The unit names and the connection lines are color-coded according to the diagnostic results.

   Diagnosis results	Unit	Connection line
   Normal	Green	Green
   Connection malfunction	Gray	Yellow
   Unit malfunction Note	Red	Green

   NOTE:

   AV control Unit (Head Unit) is displayed in red.

   • Replace AV control unit if “Self-Diagnosis did not run because of a control unit malfunction” is indicated. The symptom is AV control unit internal error. Refer to Removal and Installation.

   • If multiple errors occur at the same time for a single unit, the screen switch colors are determined according to the following order of priority: red > gray.

3. MCAN, Head Unit and VCAN are displayed:

   • Press the MCAN button and the system components connected via AV communication are displayed.

   • Press the Head Unit button and the components connected to the AV control unit are displayed.

   • Press the VCAN button and the system components connected via CAN communication are displayed. Refer to Trouble Diagnosis Flow Chart for CAN communication diagnosis.

Detection Range of Self-diagnosis Mode

• The self-diagnosis mode allows the technician to diagnose the connection in the communication line between AV control unit and each unit and the internal operation of the AV control unit.

• Because the start condition of diagnosis function is a switch operation, the on board diagnosis function cannot be started up if any malfunction is detected in the AV control unit switches.

SELF-DIAGNOSIS RESULTS

Only Unit Part Is Displayed In Red (MCAN)

Only Unit Part Is Displayed In Red (Head Unit)

A Connecting Cable Between Units Is Displayed In Yellow (MCAN)

A Connecting Cable Between Units Is Displayed In Yellow (Head Unit)

CONFIRMATION/ADJUSTMENT MODE

1. Start the diagnosis function and select “Confirmation/Adjustment”. The confirmation/adjustment mode indicates where each item can be checked or adjusted.

2. Select each switch on the “Confirmation/Adjustment Mode” screen to display the relevant trouble diagnosis screen. Touch the “Back” to return to the initial Confirmation/Adjustment Mode screen.

   

Display Diagnosis

Confirmation of the AV control unit screen operation.

Vehicle Signals

A comparison check can be made of each actual vehicle signal and the signals recognized by the system.

Navigation

The reception status of GPS can be confirmed.

Error Location Display

Results of the error occurrence are represented by the time the error occurred.

AV COMM Diagnosis

AV COMM Monitor

• Displays the communication status between 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” is pressed.

Camera

Delete Unit Connection Log

Deletes error records from the AV control unit memory.

Initialize Settings

Initializes the AV control unit memory.

GPS Time Set

Date and time information can be adjusted.

Version Information

Version information of the components of the Multi AV system are displayed.

Software Update

Version of the AV control unit software can be updated.

### Speaker Test

Two test tones, 100Hz and 4KHz, can be generated to each speaker.

Radio Tuner

Displays FM and AM monitor information.

ANC/ASC

Displayed, but not used.

SXM

Displays SXM monitor information.

CONSULT Function

APPLICATION ITEMS

CONSULT performs the following functions via communication with the AV control unit:

*: Displays when performing "Diagnosis (All System)".

SELF DIAGNOSIS RESULT

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

• The current malfunction indicates “CRNT”. The past malfunction indicates “PAST”.

• Refer to DTC Index.

Freeze Frame Data (FFD)

The following vehicle status is recorded when DTC is detected and is displayed on CONSULT.

DATA MONITOR

NOTE:

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

• 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.

*: If so equipped

WORK SUPPORT

If network initial settings are not completed, refer to the following for details of displayed numbers.

ECU IDENTIFICATION

The part number of AV control unit is displayed.

CONFIGURATION

Writes the vehicle specification when replacing AV control unit.

Diagnosis System (bose Speaker Amp.) Nissan Pathfinder R53

CONSULT Function

CONSULT FUNCTIONS

CONSULT performs the following functions via the communication with the Bose speaker amp.

*: Displays when performing "Diagnosis (All System)".

SELF DIAGNOSTIC RESULT

Refer to DTC Index.

Freeze Frame Data (FFD)

The following vehicle status is recorded when DTC is detected and is displayed on CONSULT.

DATA MONITOR

NOTE:

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

WORK SUPPORT

ECU IDENTIFICATION

The part number of Bose speaker amp. is displayed.

CONFIGURATION

Writes the vehicle specification when replacing Bose speaker amp.

B2720 Corner Sensor [rl] ++Cruise Control System