Nissan Maxima Service and Repair Manual: Diagnosis system (audio unit)
Diagnosis Description
Self-diagnosis mode can perform the following items.
- Versions display
- Channel check diagnosis
- Key check diagnosis
- AV communication diagnosis
VERSIONS DISPLAY FUNCTION
![Nissan Maxima. VERSIONS DISPLAY FUNCTION](/images/manuals/399/nissan_maxima_diagnosis_system_audio_unit__6908.jpg)
- Turn ignition switch ON.
- Turn the audio unit off.
- While pressing "1" button, turn volume control dial clockwise or
counterclockwise for 30 clicks or more.
- Diagnosis default screen of audio display unit is displayed.
NOTE: Diagnosis default screen = All
icons and segments of the audio display unit are turned on.
- Pressing the AUDIO switch briefly displays the version display mode.
Pressing the AUDIO switch briefly switches to each version display.
Pressing and holding the AUDIO switch when displaying each software
version returns to the diagnosis default screen.
- Self-diagnosis mode is canceled when the ignition switch is turned OFF.
![Nissan Maxima. VERSIONS DISPLAY FUNCTION](/images/manuals/399/nissan_maxima_diagnosis_system_audio_unit__6909.jpg)
CHANNEL CHECK DIAGNOSIS FUNCTION
- Turn ignition switch ON.
- Turn the audio unit off.
- While pressing the "1" button, turn the volume control dial clockwise
or counterclockwise for 30 clicks or more.
![Nissan Maxima. CHANNEL CHECK DIAGNOSIS FUNCTION](/images/manuals/399/nissan_maxima_diagnosis_system_audio_unit__6910.jpg)
- The diagnosis default screen of audio display unit is displayed.
NOTE: Diagnosis default screen = All
icons and segments of the audio display unit are turned on.
- Turning the TUNE/FOLDER dial clockwise displays the channel check mode.
Pressing and holding the AUDIO switch during each channel check or
waiting approximately 1 second after finishing all channel checks returns
to the diagnosis default screen.
- Self-diagnosis mode is canceled when the ignition switch is turned OFF.
![Nissan Maxima. CHANNEL CHECK DIAGNOSIS FUNCTION](/images/manuals/399/nissan_maxima_diagnosis_system_audio_unit__6911.jpg)
KEY CHECK DIAGNOSIS FUNCTION
![Nissan Maxima. KEY CHECK DIAGNOSIS FUNCTION](/images/manuals/399/nissan_maxima_diagnosis_system_audio_unit__6912.jpg)
- Turn ignition switch ON.
- Turn the audio unit off.
- While pressing the "1" button, turn the volume control dial
clockwise or counterclockwise for 30 clicks or more.
- The diagnosis default screen of audio display unit is displayed.
NOTE: Diagnosis default screen = All
icons and segments of the audio display unit are turned on.
- Turning the TUNE/FOLDER dial counterclockwise displays the key check
mode, and the pressed switch name is shown. Pressing and holding the
AUDIO switch during the key check mode returns to the diagnosis default
screen.
- Self-diagnosis mode is canceled when the ignition switch is turned OFF.
![Nissan Maxima. KEY CHECK DIAGNOSIS FUNCTION](/images/manuals/399/nissan_maxima_diagnosis_system_audio_unit__6913.jpg)
AV COMMUNICATION DIAGNOSIS FUNCTION
![Nissan Maxima. AV COMMUNICATION DIAGNOSIS FUNCTION](/images/manuals/399/nissan_maxima_diagnosis_system_audio_unit__6914.jpg)
- Turn ignition switch ON.
- Turn the audio unit off.
- While pressing the "6" button, turn the volume control dial
clockwise or counterclockwise for 30 clicks or more.
- Returns to diagnosis default screen and displays "AV DIAGNOSIS".
- Pressing the AUDIO switch briefly displays the AV communication
diagnosis mode. Pressing the AUDIO switch briefly again switches to each
AV communication display
- Pressing the SEEK up switch displays the confirmation screen of "delete
error record". Press the SEEK down switch if returning from RECORD DEL
YES? to RECORD DEL NO? The item is automatically determined approximately
6 seconds after it is displayed. Then the display returns to AV TROUBLE
DEL display item.
- Self-diagnosis mode is canceled when the ignition switch is turned OFF.
![Nissan Maxima. AV COMMUNICATION DIAGNOSIS FUNCTION](/images/manuals/399/nissan_maxima_diagnosis_system_audio_unit__6915.jpg)
![Nissan Maxima. AV COMMUNICATION DIAGNOSIS FUNCTION](/images/manuals/399/nissan_maxima_diagnosis_system_audio_unit__6916.jpg)
System Diagram
System Description
Refer to the Owner's Manual for Bluetooth telephone system operating
instructions.
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Diagnosis Description
The Bluetooth control unit has two diagnostic checks. The first diagnostic
check is performed automatically every ignition cycle during control unit
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ICC system operation
The ICC system maintains a selected distance
from the vehicle in front of you within the speed
range 0 to 90 mph (0 to 144km/h) up to the set
speed. The set speed can be selected by the
driver between 20 to 90 mph (32 to 144 km/h),
based on road conditions.
The vehicle travels at the set ...
Floor trim
Exploded View
Spacer (RH)
Spacer (LH)
Floor mat hook
Floor carpet
Harness clamp Front
Removal and Installation
REMOVAL
Disconnect the negative and positive battery terminals. Refer to
PG-68, "Removal and Installation (Battery Tray)".
Remove front seat (RH/LH). Refer t ...
RGB (R: red) signal circuit
Description
Transmit the image displayed with AV control unit with RGB signal to the
display unit.
Diagnosis Procedure
1.CHECK CONTINUITY RGB (R: RED) SIGNAL CIRCUIT
Turn ignition switch OFF.
Disconnect display unit connector M141 and AV control unit
connector
M154.
Check cont ...