Audio System, Visual System, Navigation System (Except Hybrid): Overview Nissan Altima L32

Diagnostic Work Flow Chart. Scheme 77

Component Description

COMPONENT DESCRIPTION

Diagnosis Description

Self-diagnosis mode can check the following items.

1. Audio unit hardware/software versions
2. Continuity of each speaker channel
3. Continuity of each audio unit switch

Scheme 78

Scheme 79

1. Turn ignition switch to the ACC position.
2. Turn the audio unit off.
3. While pressing the "AUDIO" button, turn the volume control dial clockwise or counterclockwise 30 clicks or more. When the self-diagnosis mode is started, a short beep will be heard. (Scheme 78): Turning Volume Control Dial Clockwise Or Counterclockwise
4. Initially, all display segments will be illuminated. (Scheme 79): Identifying Display Segments

Version Check

Scheme 80

Scheme 81

Scheme 82

Scheme 83

1. Press the "AUDIO" switch to enter version diagnostics. "Software" (audio software version) is displayed. (Scheme 80): Identifying Audio Software Version Screen Display
2. Press the "AUDIO" switch again to display the "Hardware" (audio hardware version). (Scheme 81): Identifying Audio Hardware Version Screen Display
3. Press the "AUDIO" switch again to display the "CD Mech" (CD mechanism version). (Scheme 82): Identifying CD Mechanism Version Screen Display
4. Press the "AUDIO" switch again to display the "SDARS" (satellite radio version). (Scheme 83): Identifying Satellite Radio Version Screen Display

Channel Check Diagnostics

When all segments are illuminated, press the "TUNE" up switch to enter channel check diagnostics. The self-diagnostic function will then send a tone to each channel (FL, RL, RR, FR) for 1 second.

Identifying Channel Check Screen Display. Scheme 84

Button Check Diagnostics

When all segments are illuminated, press the "TUNE" down switch to enter button check diagnostics. When each audio unit switch is pressed, a tone will sound and the switch name will be displayed.

Identifying Button Check Screen Display. Scheme 85

Scheme 86

1. CHECK FUSES Check that the following fuses are not blown. FUSES SPECIFICATION Unit Terminals Signal name Fuse No. Audio unit 19 Battery power 24 7 Ignition switch ACC or ON 19 OK or NG OK: GO TO 2. NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2. POWER SUPPLY CIRCUIT CHECK Disconnect audio unit connector M43. Check voltage between the audio unit connector M43 and ground. TERMINAL SPECIFICATION Unit Terminal No. OFF ACC ON (+) (-) Connector Terminal Audio unit M43 19 Ground Battery voltage Battery voltage Battery voltage 7 Ground 0V Battery voltage Battery voltage (Scheme 86): Checking Voltage Between Audio Unit Connector M43 Terminal 7, 19 And Ground OK or NG OK: GO TO 3. NG: Check connector housings for disconnected or loose terminals. Repair harness or connector.
3. GROUND CIRCUIT CHECK Inspect audio unit case ground. OK or NG OK: Inspection End. NG: Repair audio unit case ground.

Scheme 87

1. CHECK FUSES Check that the following fuses are not blown. FUSES SPECIFICATION Unit Terminals Signal name Fuse No. Satellite radio tuner (factory installed) 32 Battery power 24 36 Ignition switch ACC or ON 19 OK or NG OK: GO TO 2. NG: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2. POWER SUPPLY CIRCUIT CHECK Turn ignition switch OFF. Disconnect satellite radio tuner (factory installed) connector B123. Check voltage between the satellite radio tuner (factory installed) and ground. TERMINAL SPECIFICATION Unit Terminal No. OFF ACC ON (+) (-) Connector Terminal Satellite radio tuner (factory installed) B123 32 Ground Battery voltage Battery voltage Battery voltage 36 Ground 0V Battery voltage Battery voltage (Scheme 87): Checking Voltage Between Satellite Radio Tuner (Factory Installed) And Ground OK or NG OK: GO TO 3. NG: Check connector housings for disconnected or loose terminals. Repair harness or connector.
3. GROUND CIRCUIT CHECK Inspect satellite radio tuner (factory installed) case ground. OK or NG OK: Inspection End. NG: Repair satellite radio tuner (factory installed) case ground.

Description

The audio unit sends audio signals to the front door speakers using the front door speaker circuits.

Scheme 88

Scheme 89

Scheme 90

1. HARNESS CHECK Disconnect audio unit connector M43 (A) and suspect speaker connector (B). Check continuity between audio unit harness connector M43 (A) terminal and suspect speaker harness connector (B) terminal. TERMINAL CONTINUITY CHART Terminal Continuity Audio unit Speaker Connector Terminal Connector Terminal A: M43 2 B: D3 1 Yes 3 2 11 B: D103 1 12 2 Check continuity between audio unit harness connector M43 (A) terminal and ground. TERMINAL CONTINUITY CHART Terminals Continuity Audio unit - Connector Terminal A: M43 2 Ground No 3 11 12 OK or NG (Scheme 88): Checking Continuity Between Audio Unit Connector Terminal And Ground OK: GO TO 2. NG: Check connector housings for disconnected or loose terminals. Repair harness or connector.
2. FRONT SPEAKER SIGNAL CHECK Connect audio unit connector and front speaker connector. Turn ignition switch to ACC. Push "POWER" switch. Check the signal between audio unit harness connector terminals with CONSULT-III or oscilloscope. TERMINAL SIGNAL CHART Terminals Condition Reference signal (+) (-) Connector Terminal Connector Terminal M43 2 M43 3 Receive audio signal 11 12 OK or NG OK: Replace speaker. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S08416337072007112300000) ". NG: Replace audio unit. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S33460479952007112300000) ". (Scheme 89): Checking Signal Between Audio Unit Connector Terminals

The audio unit sends audio signals to the tweeters using the tweeter circuits.

Scheme 91

1. HARNESS CHECK Disconnect audio unit connector M43 (A) and suspect tweeter connector (B). Check continuity between audio unit harness connector M43 (A) and suspect tweeter harness connector (B). TERMINAL CONTINUITY CHART Terminals Continuity Audio unit Tweeter Connector Terminal Connector Terminal A: M43 2 B: M51 1 Yes 3 2 11 B: M52 1 12 2 Check continuity between audio unit harness connector M43 (A) and ground. TERMINAL CONTINUITY CHART Terminals Continuity Audio unit - Connector Terminal A: M43 2 Ground No 3 11 12 (Scheme 90): Checking Continuity Between Audio Unit Connector M43 (A) And Ground OK or NG OK: GO TO 2. NG: Check connector housings for disconnected or loose terminals. Repair harness or connector.
2. TWEETER SIGNAL CHECK Connect audio unit connector and tweeter connector. Turn ignition switch to ACC. Push "POWER" switch. Check the signal between audio unit harness connector terminals with CONSULT-III or oscilloscope. TERMINAL SIGNAL CHART Terminals Condition Reference signal (+) (-) Connector Terminal Connector Terminal M43 2 M43 3 Receive audio signal 11 12 OK or NG OK: Replace tweeter. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S08416337072007112300000) ". NG: Replace audio unit. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S33460479952007112300000) ". (Scheme 91): Checking Signal Between Audio Unit Connector Terminals

The audio unit sends audio signals to the rear speakers using the rear speaker circuits.

Scheme 92

Scheme 93

1. HARNESS CHECK Disconnect audio unit connector M43 (A) and suspect speaker connector. Check continuity between audio unit harness connector M43 (A) and suspect speaker harness connector (B). TERMINAL CONTINUITY CHART Terminals Continuity Audio unit Speaker Connector Terminal Connector Terminal A: M43 4 B: B26 1 Yes 5 2 13 B: B44 1 14 2 Check continuity between audio unit harness connector M43 (A) and ground. TERMINAL CONTINUITY CHART Terminals Continuity Audio unit - Connector Terminal A: M43 4 Ground No 5 13 14 see scheme 18: Checking Continuity Between Audio Unit Connector M43 (A) And Ground OK or NG OK: GO TO 2. NG: Check connector housings for disconnected or loose terminals. Repair harness or connector.
2. REAR SPEAKER SIGNAL CHECK Connect audio unit connector and rear speaker connector. Turn ignition switch to ACC. Push "POWER" switch. Check the signal between audio unit harness connector terminals with CONSULT-III or oscilloscope. TERMINAL SIGNAL CHART Terminals Condition Reference signal (+) (-) Connector Terminal Connector Terminal M43 4 M43 5 Receive audio signal 13 14 OK or NG OK: Replace rear speaker. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S32132941112007112300000) ". NG: Replace audio unit. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S33460479952007112300000) ". (Scheme 92): Checking Signal Between Audio Unit Connector Terminals

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

Scheme 94

Scheme 95

Scheme 96

1. CHECK STEERING SWITCH RESISTANCE Disconnect steering switch connector M88. Check resistance between steering switch connector terminals. TERMINAL RESISTANCE CHART Terminal Signal name Condition Resistance (ohms) (Approx.) 15 17 Seek (down) Depress (station) down switch. 165 Volume (down) Depress volume down switch. 487 14 17 Seek (up) Depress (station) up switch. 165 Source Depress source switch. 0 Volume (up) Depress volume up switch. 487 (Scheme 93): Checking Resistance Between Steering Switch Connector Terminals OK or NG OK: GO TO 2. NG: Replace steering switch. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S41132877832007112300000) ".
2. CHECK HARNESS Turn ignition switch OFF. Disconnect audio unit connector M43 (A) and spiral cable connector M30 (B). Check continuity between spiral cable harness connector M30 (B) and audio unit harness connector M43 (A). TERMINAL CONTINUITY CHART Terminals Continuity Spiral cable Audio Unit Connector Terminal Connector Terminal B: M30 24 A: M43 16 Yes 31 6 33 15 Check continuity between audio unit connector M43 (A) and ground. TERMINAL CONTINUITY CHART Terminals Continuity Audio unit - Connector Terminal A: M43 6 Ground No 15 16 OK or NG OK: GO TO 3. NG: Repair harness.
3. SPIRAL CABLE CHECK (Scheme 94): Checking Continuity Between Audio Unit Connector M43 (A) And Ground Disconnect spiral cable connector M88 (B). Check continuity between spiral cable harness connector M30 (A) and M88 (B). TERMINAL CONTINUITY CHART Terminals Continuity Spiral cable Connector Terminal Connector Terminal A: M30 24 B: M88 14 Yes 31 15 33 17 (Scheme 95): Checking Continuity Between Spiral Cable Connector M30 And M88 OK or NG OK: Inspection End. NG: Replace spiral cable. Refer to " «REMOVAL AND INSTALLATION»(ref-272591-S34071173062007112300000) ".

SATELLITE RADIO TUNER: Description

Communication signals are exchanged between the audio unit and satellite radio tuner using the communication circuits.

Scheme 97

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Scheme 105

1. CHECK HARNESS-1 Turn ignition switch OFF. Disconnect satellite radio tuner (factory installed) connector B123 and audio unit connector M45. Check continuity between satellite radio tuner (factory installed) harness connector B123 (A) terminal 28 and audio unit harness connector M45 (B) terminal 38. Continuity should exist. Check continuity between satellite radio tuner (factory installed) harness connector B123 (A) terminal 28 and ground. Continuity should not exist. (Scheme 96): Checking Continuity Between Satellite Radio Tuner Connector Terminal 28 And Audio Unit Connector Terminal 38 OK or NG OK: GO TO 2. NG: Repair harness or connector.
2. CHECK HARNESS-2 Check continuity between satellite radio tuner (factory installed) harness connector B123 (A) terminal 29 and audio unit harness connector M45 (B) terminal 39. Continuity should exist. Check continuity between satellite radio tuner (factory installed) harness connector B123 (A) terminal 29 and ground. Continuity should not exist. (Scheme 97): Checking Continuity Between Satellite Radio Tuner Connector Terminal 29 And Audio Unit Connector Terminal 39 OK or NG OK: GO TO 3. NG: Repair harness or connector.
3. CHECK HARNESS-3 Check continuity between satellite radio tuner (factory installed) harness connector B123 (A) terminal 30 and audio unit harness connector M45 (B) terminal 40. Continuity should exist. Check continuity between satellite radio tuner (factory installed) harness connector B123 (A) terminal 30 and ground. Continuity should not exist. (Scheme 98): Checking Continuity Between Satellite Radio Tuner Connector Terminal 30 And Audio Unit Connector Terminal 40 OK or NG OK: GO TO 4. NG: Repair harness or connector.
4. CHECK REQ1 SIGNAL Connect satellite radio tuner (factory installed) connector and audio unit connector. Turn ignition switch to ACC Check signal between satellite radio tuner (factory installed) harness connector B123 terminal 28 and ground with CONSULT-III or oscilloscope. 28-Ground (Scheme 99): Identifying Signal Waveform (Scheme 100): Checking Signal Between Satellite Radio Tuner Harness Connector B30 Terminal 28 And Ground OK or NG OK: GO TO 5. NG: Replace audio unit. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S33460479952007112300000) ".
5. CHECK TXD SIGNAL Check signal between satellite radio tuner (factory installed) harness connector B123 terminal 29 and ground with CONSULT-III or oscilloscope. 29-Ground (Scheme 101): Identifying Signal Waveform (Scheme 102): Checking Signal Between Satellite Radio Tuner Harness Connector B30 Terminal 29 And Ground OK or NG OK: GO TO 6. NG: Replace satellite radio tuner.
6. CHECK RXD SIGNAL Check signal between satellite radio tuner (factory installed) harness connector B123 terminal 30 and ground with CONSULT-III or oscilloscope. 30-Ground (Scheme 103): Identifying Signal Waveform (Scheme 104): Checking Signal Between Satellite Radio Tuner Harness Connector B30 Terminal 30 And Ground OK or NG OK: Replace satellite radio tuner. NG: Replace audio unit. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S33460479952007112300000) ".

Left and right channel audio signals are supplied from the satellite radio tuner to the audio unit through the sound signal circuits.

The majority of the audio troubles are the result of outside causes (bad CD, electromagnetic interference, etc.).

COMPONENT DESCRIPTION

Hands-Free Phone System - System Diagram. Scheme 106

System Description

Refer to the owners 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 cellular telephone to make a wireless connection between their cellular telephone and the Bluetooth 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 Bluetooth control unit. When a cellular telephone or the Bluetooth control unit is replaced, the telephone must be paired with the Bluetooth control unit. Different cellular telephones may have different pairing procedures. Refer to the cellular telephone operating manual.

COMPONENT DESCRIPTION

Self-diagnosis mode can check the following items.

1. Audio unit hardware/software versions
2. Continuity of each speaker channel
3. Continuity of each audio unit switch

OPERATION PROCEDURE

1. Turn ignition switch to the ACC position.
2. Turn the audio unit off.
3. While pressing the "AUDIO" button, turn the volume control dial clockwise or counterclockwise 30 clicks or more. When the self-diagnosis mode is started, a short beep will be heard. see scheme 65: Turning Volume Control Dial Clockwise Or Counterclockwise
4. Initially, all display segments will be illuminated. see scheme 66: Identifying Display Segments

Version Check

1. Press the "AUDIO" switch to enter version diagnostics. "Software" (audio software version) is displayed. see scheme 67: Identifying Audio Software Version Screen Display
2. Press the "AUDIO" switch again to display the "Hardware" (audio hardware version). see scheme 68: Identifying Audio Hardware Version Screen Display
3. Press the "AUDIO" switch again to display the "CD Mech" (CD mechanism version). see scheme 69: Identifying CD Mechanism Version Screen Display
4. Press the "AUDIO" switch again to display the "SDARS" (satellite radio version). see scheme 70: Identifying Satellite Radio Version Screen Display

Channel Check Diagnostics

When all segments are illuminated, press the "TUNE" up switch to enter channel check diagnostics. The self-diagnostic function will then send a tone to each channel (FL, RL, RR, FR) for 1 second.

Button Check Diagnostics

When all segments are illuminated, press the "TUNE" down switch to enter button check diagnostics. When each audio unit switch is pressed, a tone will sound and the switch name will be displayed.

The Bluetooth control unit has two diagnostic checks. The first diagnostic check is performed automatically every ignition cycle during control unit initialization. The second diagnostic check is performed by the technician using the steering wheel audio control switches prior to trouble diagnosis.

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

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

When the audio system is turned on, a voltage signal is supplied from the audio 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 switch circuit changes depending on which button is pushed.

Scheme 107

1. CHECK HARNESS Turn ignition switch OFF. Disconnect Bluetooth control unit connector and spiral cable connector M30. Check continuity between Bluetooth control unit connector B126 terminals 12, 14, and 13 and spiral cable connector M30 terminals 24, 31, and 33. TERMINAL CONTINUITY CHART Terminals Continuity Connector Terminal Connector Terminal B126 12 M30 24 Yes 13 31 14 33 Check continuity between Bluetooth control unit and ground. TERMINAL CONTINUITY CHART Terminals Continuity (+) (-) Connector Terminal B126 12 Ground No 13 14 OK or NG OK: GO TO 2. NG: Repair harness.
2. CHECK HARNESS Disconnect audio unit connector. Check continuity between audio unit connector M43 (A) terminals 6, 15, and 16 and Bluetooth control unit connector B126 (B) terminals 17, 19, and 18. TERMINAL CONTINUITY CHART Terminals Continuity Connector Terminal Connector Terminal A: M43 6 B: B126 17 Yes 15 19 16 18 OK or NG OK: GO TO 3. NG: Repair harness.
3. SPIRAL CABLE CHECK see scheme 77: Checking Continuity Between Audio Unit Connector Terminals 6, 15, And 16 And Bluetooth Control Unit Connector Terminals 17, 19 Disconnect spiral cable connector M88. Check continuity between spiral cable terminals. 14-24: Continuity should exist. 15-31: Continuity should exist. 17-33: Continuity should exist. OK or NG see scheme 78: Checking Continuity Between Spiral Cable Terminals OK: GO TO 4. NG: Replace spiral cable. Refer to " «REMOVAL AND INSTALLATION»(ref-272591-S34071173062007112300000) ".
4. CHECK STEERING SWITCH Check steering switch. Refer to " «COMPONENT INSPECTION»(ref-272638-S42152551162007112300000) ". OK or NG OK: Replace Bluetooth control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S21739650372007112300000) " NG: Replace steering switch. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S25016156322007112300000) ".

Communication signals are exchanged between the audio unit and satellite radio tuner using the communication circuits.

Left and right channel audio signals are supplied from the satellite radio tuner to the audio unit through the sound signal circuits.

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

Scheme 108

Scheme 109

Scheme 110

Scheme 111

1. CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE Turn ignition switch OFF. Disconnect Bluetooth control unit connector and microphone connector. Check continuity between Bluetooth control unit harness connector B126 (A) and microphone harness connector R7 (B). TERMINAL CONTINUITY CHART Terminals Continuity Bluetooth control unit Microphone Connector Terminal Connector Terminal A: B126 7 B: R7 1 Yes 8 2 29 4 Check continuity between Bluetooth control unit harness connector B126 (A) and ground. TERMINAL CONTINUITY CHART Terminals Continuity Bluetooth control unit - Connector Terminal A: B126 7 Ground No 8 29 see scheme 98: Checking Continuity Between Bluetooth Control Unit Connector B126 (A) And Ground OK or NG OK: GO TO 2. NG: Repair harness or connector.
2. CHECK MICROPHONE POWER SUPPLY Connect Bluetooth control unit connector and microphone connector. Turn ignition switch ON. Check voltage between microphone harness connector R7 terminal 4 and ground. 4-Ground: Approx. 5V OK or NG OK: GO TO 3. NG: Replace Bluetooth control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S21739650372007112300000) ". see scheme 99: Checking Voltage Between Microphone Connector R7 Terminal 4 And Ground
3. CHECK MICROPHONE SIGNAL Check signal between Bluetooth control unit harness connector B126 terminals 7 and 8. 7-8: see scheme 100: Identifying Signal Waveform (Scheme 108): Checking Signal Between Bluetooth Control Unit Connector B126 Terminals 7 And 8 OK or NG OK: Replace Bluetooth control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S21739650372007112300000) ". NG: Replace microphone. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S31565321592007112300000) ".

Audio Unit Wiring Diagram (3 Of 3). Scheme 112

The majority of the audio troubles are the result of outside causes (bad CD, electromagnetic interference, etc.).

REAR VIEW MONITOR GUIDING LINE ADJUSTMENT: Description

This mode is used to modify the side distance guidelines if they are dislocated from the rear view monitor image, because of variations of body/camera mounting conditions.

Scheme 113

Scheme 114

1. Create a correction line to modify the screen. Draw lines on the rearward of the vehicle passing through the following points: 200 mm (7.87 inch) from both sides of the vehicle, and *1: 0.5 m (1.5 feet) *2: 1 m (3 feet) *3: 2 m (7 feet) *4: 3 m (10 feet) and from the rear end of the bumper
2. With the ignition switch OFF, connect CONSULT-III, then turn ignition switch ON. Select "REARVIEW CAMERA". CAUTION: Stop engine for safety when correcting side distance guideline. see scheme 135: Identifying Side Distance Guideline Correction
3. Shift the A/T selector lever to R position. see scheme 136: Identifying A/T Selector Lever To R Position
4. Touch "SELECT GUIDELINE PATTERN" under "WORK SUPPORT" menu.
5. Touch "UP" or "DOWN", and select the guide line, "PATTERN NO. 0" or "PATTERN NO. 1", which is the closest to the corrected line.
6. Touch "SAVE", and confirm the guide line.
7. Touch "END".
8. Touch "ADJ GUIDELINE POSITION" under the "WORK SUPPORT" menu.
9. Adjust the guide line touching "X UP", "X DOWN", "Y UP" or "Y DOWN" so that the corrected line can fit the guide line.
10. Touch "SAVE", and confirm the guide line.
11. Touch "END" to finish correcting.

Navigation System - System Diagram. Scheme 115

The multi AV system consists of the following systems.

1. Navigation system
2. Audio system
3. Rear view monitor
4. Hands-free phone system

Refer to the following table for multi AV system descriptions.

SYSTEM DESCRIPTION

COMPONENT DESCRIPTION

Note. Refer to NAVI System owners 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 DVD-ROM, which is stored in the DVD-ROM drive (map-matching), and indicated on the screen with a current-location mark.

Global Positioning System. Scheme 116

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.

Rear View Monitor System - System Diagram. Scheme 117

COMPONENT DESCRIPTION

When the selector is in the R position, the display will show a view to the rear of the vehicle. Lines which indicate the vehicle clearance and distances are also displayed.

COMPONENT DESCRIPTION

Audio System - System Diagram. Scheme 118

The audio system consists of the following components

1. AV control unit (audio unit)
2. BOSE speaker amp.
3. Window antenna
4. Antenna amp.
5. Steering switches
6. Front door speakers
7. Tweeters
8. Center speaker
9. Rear door speakers
10. Woofers
11. CD changer

When the audio system is on, radio signals are received by the window antenna. These signals are amplified by the antenna amp. before reaching the audio unit. The audio unit then sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the front door speakers, tweeters, center speaker, rear door speakers and woofers.

Refer to Owner's Manual for audio system operating instructions.

COMPONENT DESCRIPTION

Scheme 119

Refer to the owners 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 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.

COMPONENT 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 History of Errors of the multi AV system.

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

The audio 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 audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the woofers 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 switch circuit changes depending on which button is pushed.

Power is supplied to the microphone from the AV control unit. The microphone transmits voice signals to the AV control unit.

Rear view camera images are transmitted to the rear view camera control unit using the camera image signal circuits.

Scheme 120

1. CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUITY Turn ignition switch OFF. Disconnect rear view camera control unit connector and rear view camera connector. Check continuity between rear view camera control unit harness connector B31 terminals 9, 10 and rear view camera harness connector B35 terminals 3, 4. 9-4: Continuity should exist. 10-3: Continuity should exist. Check continuity between rear view camera control unit harness connector B31 terminals 9, 10 and ground. 9, 10-Ground: Continuity should not exist. Is inspection result OK? YES: GO TO 2. NO: Repair harness or connector.
2. CHECK CAMERA IMAGE SIGNAL Connect rear view camera control unit connector and rear view camera connector. Turn ignition switch ON. Check signal between rear view camera control unit harness connector B31 terminals 10 and 9. 10-9: see scheme 174: Identifying Signal Waveform Is inspection result OK? YES: Replace rear view camera control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S35978395872007112300000) ". NO: Replace rear view camera. Refer to " «REMOVAL AND INSTALLATION»(ref-272638-S19858945242007112300000) ".

When the selector lever is placed in the R position, the rear view camera control unit sends a camera ON signal to the rear view camera.

Rear view camera image signals are transmitted from the rear view camera control unit to the AV control unit using the image signal circuits.

A reverse signal is supplied from the back-up lamp relay (with CVT and VQ35DE), park/neutral position switch (with CVT and QR25DE) or backup lamp switch (with M/T) to the rear view camera control unit. When this signal is received, the display shows a view to the rear of the vehicle.

Scheme 121

1. BACK-UP LAMP INSPECTION Turn ignition switch ON. Shift A/T selector lever to R position. Does back-up lamp illuminate? YES: GO TO 2. NO: Check back-up lamp system. Refer to " «WORK FLOW»(ref-272624-S02151574032007112300000) ".
2. CHECK REVERSE POSITION INPUT SIGNAL With CONSULT-III Select "DATA MONITOR" of "REARVIEW CAMERA". Operate ignition switch with "R POSI SIG" of "DATA MONITOR" and check operate status. Without CONSULT-III Turn ignition switch OFF. Disconnect rear view camera control unit connector. Turn ignition switch ON. Shift selector lever to R position. Check voltage between rear view camera control unit harness connector B31 terminal 4 and ground. Battery voltage should exist. OK or NG OK: Inspection End. NG: Check harness for open or short between rear view camera control unit and back-up lamp relay (with CVT and VQ35DE), park/neutral position switch (with CVT and QR25DE) or backup lamp switch (with M/T). see scheme 176: Checking Voltage Between Rear View Camera Control Unit Harness Connector B73 Terminal 4 And Ground

Basic Operation

SYMPTOM CHART