Contents Section: Entertainment Systems All sections

Audio, Visual, Navigation System (Bose Audio with Navigation): Overview Nissan Pathfinder III рестайлинг

Entertainment Systems 8 illustrations ~1542 words

Scheme 1

Scheme 1: OVERALL SEQUENCE
  1. Reference 1... Refer to " «AV CONTROL UNIT: CONSULT FUNCTION»(ref-519821-S33907081052012122900000) ".
  2. Reference 2... Refer to " «SYMPTOM TABLE»(ref-519821-S07162284922012122900000) ".

Component Description

Part nameDescription
AV control unitControls audio system and satellite radio system functions
Display unitTouch screen controls all audio and A/C operations Displays all audio and climate control related information
BOSE speaker amp.Receives power (amp ON) and audio signals from AV control unit and outputs audio signals to each speaker.
Steering wheel audio control switchesAudio operation can be operated Steering wheel audio control switch signal is output to AV control unit
Front door speakersOutputs audio signal from BOSE speaker amp. Outputs high, mid and low range sounds
Front tweetersOutputs audio signal from BOSE speaker amp. Outputs high range sounds
Rear door speakersOutputs audio signal from BOSE speaker amp. Outputs high, mid and low range sounds
Rear tweetersOutputs audio signal from BOSE speaker amp. Outputs high range sounds
SubwooferOutputs audio signal from BOSE speaker amp. Outputs low range sounds
Satellite antennaAudio signal (satellite radio) is received and output to AV control unit.

Scheme 2

Scheme 2: System Diagram

System Description

Note. Refer to NAVIGATION System Owner's Manual for system operation.

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 data, which is stored in the hard disk drive (HDD) (map-matching), and indicated on the screen with a current-location mark.

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.

Scheme 3

Scheme 3: System Description
Part nameDescription
AV control unitControls each operation of the navigation system DVD-ROM drive is built in Voice guidance signal is output to BOSE speaker amp.
BOSE speaker amp.Voice guidance signal is input from AV control unit, and it is output to speakers.
TweeterVoice guidance signal from BOSE speaker amp. is output.
Steering wheel audio control switchesEach operation of navigation system can be performed Switch operating signal is output to AV control unit
MicrophoneSends voice signals to AV control unit
GPS antennaGPS signal is received and is output to AV control unit.

Scheme 4

Scheme 4: System Diagram

When the shift selector is in the R position, the display unit receives camera image signals from the rear view camera which shows a view to the rear of the vehicle. Lines which indicate the vehicle clearance and distances are also displayed.

Scheme 5

Scheme 5: Component Parts Location
Part nameDescription
AV control unitReceives reverse signal from back-up lamp relay Sends camera ON signal to rear view camera
Rear view cameraReceives camera ON signal from AV control unit Sends image signal to the display unit
Display unitReceives image signal from rear view camera

Scheme 6

Scheme 6: System Diagram

The DVD entertainment system consists of the following components

  1. AV control unit
  2. Display unit
  3. DVD player
  4. Video monitor
  5. A/C and AV switch assembly
  6. Steering wheel audio control switches
  7. BOSE speaker amp.
  8. Front tweeters
  9. Front door speakers
  10. Rear tweeters
  11. Rear door speakers
  12. Subwoofer

When the DVD entertainment system is on, video signals are sent from the DVD player to the video monitor. Audio signals are sent to the AV control unit. Audio signals can be directed through wireless infrared headphones or through the BOSE speaker amp. to the vehicle speakers. Refer to the Owner's Manual for complete DVD entertainment system operating instructions.

Scheme 7

Scheme 7: Component Parts Location
Part nameDescription
DVD playerOutputs DVD video to video monitor Outputs DVD audio to the AV control unit
Video monitorReceives and displays the DVD video signal
AV control unitControls audio system and DVD entertainment system functions
BOSE speaker amp.Receives audio signals from the AV control unit Outputs amplified audio signals to the speakers
A/C and AV switch assemblyAll audio and A/C operations can be operated Switch signal is output to the AV control unit and A/C auto amp
Steering wheel audio control switchesAudio operation can be operated Steering switch signal (operation signal) is output to AV control unit
Front door speakersOutputs audio signal from BOSE speaker amp. Outputs high, mid and low range sounds
Front and rear tweetersOutputs audio signal from BOSE speaker amp. Outputs high range sounds
Rear door speakersOutputs audio signal from BOSE speaker amp. Outputs high, mid and low range sounds
SubwooferOutputs audio signal from BOSE speaker amp. Outputs low range sounds

Scheme 8

Scheme 8: System Diagram

Refer to the Owner's Manual for Bluetooth telephone system operating instructions.

Note. Cellular telephones must have their wireless connection set up (paired) before using the Bluetooth telephone system.

Bluetooth telephone system allows users who have a Bluetooth equipped cellular telephone to make a wireless connection between their cellular telephone and the AV control unit. Hands-free cellular telephone calls can be sent and received. Personal memos can be created using the Nissan Voice Recognition system. Some Bluetooth cellular telephones may not be recognized by the AV control unit. When a cellular telephone or the AV control unit is replaced, the telephone must be paired with the AV control unit. Different cellular telephones may have different pairing procedures. Refer to the cellular telephone operating manual and the vehicle Owner's Manual for more information.

Part nameDescription
AV control unitReceives telephone voice signal from Antenna and Microphone Sends telephone voice and voice guidance signals to the speakers
BOSE speaker amp.Receives audio signals from the AV control unit Outputs amplified audio signals to the speakers.
Front door speakerReceives telephone voice and voice guidance signals from the AV control unit through the BOSE speaker amp.
Front tweeter
Steering wheel audio control switchesStart a voice recognition session Answer and end telephone calls Adjust the volume level
MicrophoneSends voice signals to Bluetooth control unit
Bluetooth antennaSends telephone voice signal to Bluetooth control unit

DESCRIPTION

  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 requires 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 error history of the AV control unit.

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. Refer to " HOW TO USE CAN COMMUNICATION SIGNAL CHART ".

Initial diagnosis of AV control unit.

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIt is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIt is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIt is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIt is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIt is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIt is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIt is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIt is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIntegrates HDD (hard disk drive) allowing map data and music data to be stored. It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. The AV control unit includes the audio, hands-free phone, voice control, navigation, and vehicle information functions. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIntegrates HDD (hard disk drive) allowing map data and music data to be stored. It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. The AV control unit includes the audio, hands-free phone, voice control, navigation, and vehicle information functions. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIt is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIntegrates HDD (hard disk drive) allowing map data and music data to be stored. It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. The AV control unit includes the audio, hands-free phone, voice control, navigation, and vehicle information functions. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIntegrates HDD (hard disk drive) allowing map data and music data to be stored. It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. The AV control unit includes the audio, hands-free phone, voice control, navigation, and vehicle information functions. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIntegrates HDD (hard disk drive) allowing map data and music data to be stored. It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. The AV control unit includes the audio, hands-free phone, voice control, navigation, and vehicle information functions. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIntegrates HDD (hard disk drive) allowing map data and music data to be stored. It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. The AV control unit includes the audio, hands-free phone, voice control, navigation, and vehicle information functions. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIntegrates HDD (hard disk drive) allowing map data and music data to be stored. It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. The AV control unit includes the audio, hands-free phone, voice control, navigation, and vehicle information functions. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).
Part nameDescription
AV CONTROL UNITIntegrates HDD (hard disk drive) allowing map data and music data to be stored. It is the master unit of the MULTI AV system, and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. The AV control unit includes the audio, hands-free phone, voice control, navigation, and vehicle information functions. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).
Part nameDescription
DISPLAY UNITDisplay image is controlled by the serial communication from AV control unit. RGB image signal is input from AV control unit (RGB, RGB area and RGB synchronizing). Auxiliary image signal is input from the auxiliary input jack. Camera image signal is input from the rear view camera. Synchronize signal (HP, VP) is output to AV control unit. Touch panel function can be operated for each system by touching a display directly.

The GPS antenna receives satellite GPS signals.

Part nameDescription
SATELLITE RADIO ANTENNASatellite radio signal is received and sent to audio control unit.

U1300 is indicated when malfunction occurs in communication signal of multi AV system. Indicated simultaneously, without fail, with the malfunction of control units connected to AV control unit with communication line. Determine the possible malfunction cause from the table below.

Self-diagnosis results display item

DTCDisplay contents of CONSULTDTC Detection ConditionPossible causes
U1300 U1240AV COMM CIRCUIT [U1300] SWITCH CONN [U1240]A/C and AV switch assembly power supply and ground circuit malfunction is detected A malfunction is detected in communication circuit between AV control unit and A/C and AV switch assembly A malfunction is detected in communication signal between AV control unit and A/C and AV switch assemblyA/C and AV switch assembly power supply and ground circuits Communication circuit between AV control unit and A/C and AV switch assembly

Replace the AV control unit if this DTC is displayed. Refer to " REMOVAL AND INSTALLATION ".

Part nameDescription
AV CONTROL UNITIt is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function. It inputs the automatic brightness ON/OFF signals that are required for the display dimming control. It inputs the signals for driving status recognition (vehicle speed, reverse and parking brake).

Transmit the image displayed with audio control unit with RGB signal to the display unit.

Transmit the image displayed with AV control unit with RGB signal to the display unit.

Transmit the image displayed with AV control unit with RGB signal to the display unit.

Transmit the RGB synchronizing signal to the display unit so as to synchronize the RGB image displayed with AV control unit.

Transmits the display area of RGB image displayed by AV control unit with RGB area (YS) signal to display unit.

In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizontal synchronizing (HP) signal from display unit to AV control unit so as to synchronize the RGB images displayed with AV control unit such as the image quality adjusting menu, etc.

In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizontal synchronizing (HP) signal from display unit to AV control unit so as to synchronize the RGB images displayed with AV control unit such as the image quality adjusting menu, etc.

The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the front door speakers using the audio signal circuits.

The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the tweeters using the audio signal circuits.

The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the rear door speakers using the audio signal circuits.

The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the rear tweeters using the audio signal circuits.

The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the subwoofer using the audio signal circuits.

When the audio system is turned on, a voltage signal is supplied from the AV control unit to the BOSE speaker amp. When this signal is received, the BOSE speaker amp. will turn on.

When one of the steering wheel audio control switches is pushed, the resistance in the steering wheel audio control switch circuit changes depending on which button is pushed.

Voice signals are transmitted from the microphone to the AV control unit using the microphone signal circuits.

Rear view camera signals are transmitted from the rear view camera to the display unit using the camera signal circuits.

OPERATION PROCEDURE

  1. Connect both battery cables. NOTE: Supply power using jumper cables if battery is discharged.
  2. Use the Intelligent Key or mechanical key to turn the ignition switch to the "ACC" position. At this time, the steering lock will be released.
  3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
  4. Perform the necessary repair operation.
  5. When the repair work is completed, return the ignition switch to the "LOCK" position before connecting the battery cables. (At this time, the steering lock mechanism will engage.)
  6. Perform a self-diagnosis check of all control units using CONSULT.