Audio Visual, Navigation & Telephone System: Overview Nissan Maxima A34

System Description

With the ignition switch in ACC or ON, power is supplied

1. Through 10A fuse [No. 6, located in the fuse block (J/B)]
2. To audio unit terminal 10.

Ground is supplied through the case of the antenna amp. When the radio switch is turned ON, antenna signal is supplied

1. Through audio unit terminal 5
2. To the antenna amp. terminal 1.

Then the antenna amp. is activated.

The amplified radio signals are supplied to the audio unit through the antenna amp.

CAN COMMUNICATION SYSTEM DESCRIPTION

Refer to CAN COMMUNICATION .

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DESCRIPTION

1. Diagnosis function consists of the self-diagnosis mode performed automatically.
2. Self-diagnosis mode checks for connections between the units constituting this system, analyzes each individual unit at the same time, and displays the results on the LCD screen.

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1. Start the engine.
2. Turn the audio system off.
3. While pressing the "PAUSE/MUTE" switch, turn the volume control dial clockwise or counterclockwise for 30 clicks or more. (When the self-diagnosis mode is started, a short beep will be heard.)
4. Display unit connection check screen.
5. Select each connecting unit (IVCS, CHANGER, SATELLITE RADIO).
6. Self-diagnosis screen is displayed. Using the joystick, select each item, and perform diagnosis. CAUTION: If self-diagnosis cannot be activated, refer to «TROUBLE DIAGNOSIS CHART BY SYMPTOM»(ref-233678-S16508392272006052600000) .

The navigation system periodically calculates the vehicle's current position according to the following three signals: Travel distance of the vehicle as determined by the vehicle speed sensor, turning angle of the vehicle as determined by the gyroscope (angular velocity sensor), and the direction of vehicle travel as determined by the GPS antenna (GPS information).

The current position of the vehicle is then identified by comparing the calculated vehicle position with map data read from the map DVD-ROM, which is stored in the DVD-ROM drive (map-matching), and indicated on the screen with a current-location mark.

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By comparing the vehicle position detection results found by the GPS and by map-matching, more accurate vehicle position data can be used.

The current vehicle position will be calculated by detecting the distance the vehicle moved from the previous calculation point and its direction.

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Following guidance volume settings can be changed.

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1. Diagnosis function consists of the self-diagnosis mode performed automatically and the CONFIRMATION/ADJUSTMENT mode operated manually.
2. Self-diagnosis mode checks for connections between the units constituting this system, analyzes each individual unit at the same time, and displays the results on the LCD screen.
3. CONFIRMATION/ADJUSTMENT mode is used to perform trouble diagnosis that require operation and judgment by an operator (trouble that cannot be automatically judged by the system), to check/change the set value, and to display the History of Errors of the navigation system.

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Note. Make the status that is set by D/N function be shown.

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1. Start the engine.
2. Turn the audio system off.
3. While pressing the "PAUSE/MUTE" button, turn the volume control dial clockwise or counterclockwise for 30 clicks or more. (When the self-diagnosis mode is started, a short beep will be heard.) Shifting from current screen to previous screen is performed by pressing "PREV" button.
4. The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis (DCU)", "Self-Diagnosis (NAVI)", "Confirmation/Adjustment" and "CAN DIAG SUPPORT MONITOR" will become selective.
5. Perform self-diagnosis by selecting the "Self-diagnosis". Self-diagnosis subdivision screen will be shown and the operation enters the self-diagnosis mode. A bar graph shown below the self-diagnosis subdivision screen indicates progress of the diagnosis.
6. When the self-diagnosis completes, optional part confirmation screen will be shown. When connection of an optional part is judged error, a screen to check if the optional part is actually fitted on the vehicle or not will be shown. When fitted, select the switch of the part on the screen and press "End". Then the "SELF DIAGNOSIS" screen will be shown. When the optional part is connected normally, the switch for the part will not appear on the screen.
7. On the "SELF DIAGNOSIS" screen, each unit name will be colored according to the diagnosis result, as follows. Green: Not malfunctioning. Yellow: Cannot be judged by self-diagnosis results. Red: Unit is malfunctioning. If several malfunctions are present in a unit, color of its switch on the screen will be either red, yellow, or grey, determined by the malfunction of the highest priority.
8. Select a switch on the "SELF DIAGNOSIS" screen and comments for the diagnosis results will be shown. When the switch is green, the following comment will be shown. "Self-diagnosis was successful. Further diagnosis and adjustments are recommended. Follow the "confirmation/adjustment" menu or refer to the article." When the switch is yellow, the following comment will be shown. "Connection to the following unit is abnormal. See the article for further details". When the switch is red, the following comment will be shown. "DCU is abnormal".

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1. Select a malfunctioning diagnosis No. in the diagnosis result quick reference table.
2. Find estimated malfunctioning system in the diagnosis No. table and perform check by referring to «WIRING DIAGRAM - COMM»(ref-233678-S12814295862006052600000) .
3. Turn the ignition switch OFF and perform self-diagnosis again.

Self-Diagnosis Codes

SELF-DIAGNOSIS CODES

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1. Start the engine.
2. Turn the audio system off.
3. While pressing the "PAUSE/MUTE" button, turn the volume control dial clockwise or counterclockwise for 30 clicks or more. (When the self-diagnosis mode is started, a short beep will be heard.) Shifting from current screen to previous screen is performed by pressing "PREV" button.
4. The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis (DCU)", "Self-Diagnosis (NAVI)", "Confirmation/Adjustment" and "CAN DIAG SUPPORT MONITOR" will become selective.
5. Perform self-diagnosis by selecting the "Self-diagnosis (NAVI)". Self-diagnosis subdivision screen will be shown and the operation enters the self-diagnosis mode. A bar graph shown below the self-diagnosis subdivision screen indicates progress of the diagnosis.
6. On the "SELF DIAGNOSIS" screen, each unit name will be colored according to the diagnosis result, as follows. Green: Not malfunctioning. Yellow: Cannot be judged by self-diagnosis results. Red: Unit is malfunctioning. Gray: Diagnosis has not been done. If several malfunctions are present in a unit, color of its switch on the screen will be either red, yellow, or gray, determined by the malfunction of the highest priority.
7. Select a switch on the "SELF DIAGNOSIS" screen and comments for the diagnosis results will be shown. When the switch is green, the following comment will be shown. "Self-diagnosis was successful. Further diagnosis and adjustments are recommended. Follow the "Confirmation and Adjustments" menu or refer to the article." When the switch is yellow, the following comment will be shown. "Connection to the following unit is abnormal. See the article for further details". When the switch is red, the following comment will be shown. "Center Control Unit is abnormal". When the switch is gray, the following comment will be shown. "Self-diagnosis for DVD-ROM DRIVER of NAVI was not conducted because no DVD-ROM was available."

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1. Select a malfunctioning diagnosis No. in the diagnosis result quick reference table.
2. Find estimated malfunctioning system in the diagnosis No. table and perform check by referring to «WIRING DIAGRAM - COMM»(ref-233678-S12814295862006052600000) .
3. Turn the ignition switch OFF and perform self-diagnosis again.

BASIC OPERATION

TROUBLESHOOTING - BASIC OPERATION

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Note. Except for the ordinance-designated cities. (Malfunctioning areas may be changed in the updated map disc.)