radio NISSAN LATIO 2007 Service Repair Manual

AV-1
AUDIO, VISUAL, NAVIGATION & TELEPHONE SYS-
TEM
K ELECTRICAL
CONTENTS
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SECTION AV
A
B
AV
Revision: June 20062007 Versa PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
PREPARATION ........................................................... 4
Commercial Service Tool ......................................... 4
AUDIO ......................................................................... 5
Component Parts Location ....................................... 5
System Description .................................................. 5
BASE SYSTEM ..................................................... 5
MID LEVEL AND PREMIUM SYSTEM ................. 5
SPEED SENSITIVE VOLUME SYSTEM (MID
LEVEL AND PREMIUM SYSTEM) ....................... 6
Schematic ................................................................ 7
MID LEVEL SYSTEM ............................................ 7
PREMIUM SYSTEM ............................................. 8
Wiring Diagram — AUDIO — ................................... 9
BASE SYSTEM ..................................................... 9
MID LEVEL SYSTEM .......................................... 10
PREMIUM SYSTEM ........................................... 12
Audio Unit (Base System) Harness Connector Ter-
minal Layout ........................................................... 16
Terminals and Reference Value for Audio Unit (Base
System) .................................................................. 16
Audio Unit (Mid Level and Premium System) Har-
ness Connector Terminal Layout ............................ 17
Terminals and Reference Value for Audio Unit (Mid
Level and Premium System) .................................. 17
Subwoofer Harness Connector Terminal Layout
(Premium Audio System) ....................................... 20
Terminals and Reference Value for Subwoofer (Pre-
mium Audio System) .............................................. 20
Satellite Radio Tuner Harness Connector Terminal
Layout .................................................................... 21
Terminals and Reference Value for Satellite Radio
Tuner ...................................................................... 21
Trouble Diagnosis .................................................. 23
Noise Inspection ..................................................... 23
TYPE OF NOISE AND POSSIBLE CAUSE ........ 24
Power Supply Circuit Inspection ............................ 24Satellite Radio Tuner (Factory Installed) Power and
Ground Supply Circuit Inspection ........................... 25
Satellite Radio Tuner (Factory Installed) Commu-
nication Circuit Inspection ....................................... 26
Satellite Radio Tuner (Factory Installed) Left Chan-
nel Audio Signal Circuit Inspection ......................... 28
Satellite Radio Tuner (Factory Installed) Right
Channel Audio Signal Circuit Inspection ................ 29
Steering Switch Check (With Bluetooth) ................. 30
Sound Is Not Heard From Front Door Speaker (Base
System) .................................................................. 32
Sound Is Not Heard From Rear Door Speaker (Base
System) .................................................................. 34
Sound Is Not Heard From Front Door Speaker or
Tweeter (Mid Level and Premium System) ............. 36
Sound Is Not Heard From Rear Door Speaker (Mid
Level and Premium System) .................................. 38
Sound Is Not Heard From Subwoofer (Premium
System) .................................................................. 40
Removal and Installation ........................................ 43
AUDIO UNIT ........................................................ 43
FRONT DOOR SPEAKER .................................. 43
REAR DOOR SPEAKER ..................................... 43
TWEETER ........................................................... 43
SATELLITE TUNER MODULE ............................ 44
SATELLITE TUNER ANTENNA .......................... 45
STEERING WHEEL AUDIO CONTROL
SWITCHES ......................................................... 46
SUBWOOFER ..................................................... 47
AUDIO ANTENNA .................................................... 48
Location of Antenna ................................................ 48
Removal and Installation of Roof Antenna ............. 48
REMOVAL ........................................................... 48
INSTALLATION ................................................... 48
TELEPHONE ............................................................. 49
Component Parts and Harness Connector Location ... 49
System Description ................................................. 49
BLUETOOTH® HANDS-FREE PHONE SYS-
TEM ..................................................................... 49
Wiring Diagram — H/PHON — ............................... 52

AUDIO
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AUDIOPFP:28111
Component Parts LocationEKS00I4B
System DescriptionEKS00IA5
BASE SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 20A fuse (No. 27, located in the fuse and fusible link box)

to audio unit terminal 19.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse (No. 20, located in the fuse and fusible link box)

to audio unit terminal 7.
Ground is supplied through the case of the audio unit.
Then audio signals are supplied

through audio unit terminals 2, 3, 4, 5, 11, 12, 13 and 14

to terminals + and - of front door speaker LH and RH and

to terminals + and - of rear door speaker LH and RH.
MID LEVEL AND PREMIUM SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 20A fuse (No. 27, located in the fuse and fusible link box)

to audio unit terminal 19 and

to subwoofer terminal 1 (with premium system).
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse (No. 20, located in the fuse and fusible link box)

to audio unit terminal 7.
Ground is supplied through the case of the audio unit.
Ground is also supplied

to audio unit terminal 21 (with premium system)
1. Audio unit M43, M44 and M45 2. Front door speaker LH D12, RH
D1123. Rear door speaker LH D207, RH
D307
4. Tweeter LH M46, RH M47 (view with
front pillar garnish removed) 5. Subwoofer B29 (premium system)
[view with luggage side lower fin-
isher (LH) removed]6. Satellite radio tuner B30 and B31 (if
equipped)
WKIA5422E

AV-6
AUDIO
Revision: June 20062007 Versa

through body grounds M57 and M61 and

to subwoofer terminal 3 (with premium system)

through body grounds B7 and B19.
Then audio signals are supplied

through audio unit terminals 2, 3, 4, 5, 11, 12, 13, and 14

to terminals + and - of front door speaker LH and RH and

to terminals + and - of tweeter LH and RH and

to terminals + and - of rear door speaker LH and RH and

to terminals 2 and 6 of subwoofer (with premium system).
Steering Wheel Audio Control Switches (with Bluetooth)
When one of steering wheel audio control switches is pushed, the resistance in steering switch circuit changes
depending on which button is pushed.
Satellite Radio Tuner (Pre-wiring)
The satellite radio tuner pre-wiring allows connection of a satellite radio tuner.
Power is supplied at all times

through 20A fuse (No. 27, located in the fuse and fusible link box)

to satellite radio tuner pre-wiring terminal 32.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse (No. 20, located in the fuse and fusible link box)

to satellite radio tuner pre-wiring terminal 36.
Then audio signals are supplied

through satellite radio tuner pre-wiring terminals 21, 22, 23 and 24

to audio unit terminals 41, 42, 43 and 44.
Satellite Radio Tuner (Factory Installed)
Power is supplied at all times

through 20A fuse (No. 27, located in the fuse and fusible link box)

to satellite radio tuner terminal 32.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse (No. 20, located in the fuse and fusible link box)

to satellite radio tuner terminal 36.
Ground is supplied through the case of the satellite radio tuner.
Then audio signals are supplied

through satellite radio tuner terminals 21, 22, 23 and 24

to audio unit terminals 41, 42, 43 and 44.
Ground is supplied through the case of the satellite radio tuner.
SPEED SENSITIVE VOLUME SYSTEM (MID LEVEL AND PREMIUM SYSTEM)
Volume level of this system goes up and down automatically in proportion to the vehicle speed. The control
level can be selected by the customer. Refer to Owner's Manual for operating instructions.

AUDIO
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*1: With premium system
*2: With Bluetooth42 (R) 41 (G)Audio left
channel
sound sig-
nal from sat-
ellite radio
tunerInput ONReceive audio
signalNo sound from
satellite radio
tuner left channel.
44 (B) 43 (W)Audio right
channel
sound sig-
nal from sat-
ellite radio
tunerInput ONReceive audio
signalNo sound from
satellite radio
tuner right chan-
nel.
45 –Shield
ground
(audio sig-
nal)–– – 0V –
46 –Shield
ground
(data)–– – 0V –
48 (B) GroundSatellite
radio tuner
request to
audio unitInput ONTurn audio unit
ON 5VSatellite radio
tuner does not
operate properly.
49 (L) Ground Audio RX Input ONOperate audio
volume Satellite radio
tuner audio infor-
mation does not
display properly.
50 (Y) Ground Audio TX Output ONOperate audio
volume Satellite radio
tuner audio infor-
mation does not
display properly. Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
(Approx.)Example of symp-
tom
+–Ignition
switchOperation
SKIA0177E
SKIA0177E
SKIA4403E
SKIA4402E

AUDIO
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Satellite Radio Tuner Harness Connector Terminal LayoutEKS00I9R
Terminals and Reference Value for Satellite Radio TunerEKS00I9S
LKIA0735E
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Voltage
(Approx.)
+–Ignition
switchOperation
22 (R) 21 (G) Audio signal LH Output ON Receive audio signal.
24 (B) 23 (W) Audio signal RH Output ON Receive audio signal.
25 – Shield – – – –
26 – Data ground ON 0V
28 (B) GroundREQ1
(SAT-AUDIO)Output ONSet to the satellite radio
mode
29 (R/L) GroundCommunication signal
(SAT-AUDIO)Output ONSet to the satellite radio
mode
30 (R/W) GroundCommunication signal
(AUDIO-SAT)Input ONSet to the satellite radio
mode
SKIB3609E
SKIB3609E
SKIB3825E
SKIB3824E
SKIB3826E

AUDIO
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Trouble DiagnosisEKS00I4F
NOTE:
The subwoofer (premium system) may be inoperative if the audio unit harness connectors have not been con-
nected in the proper sequence (when the battery remains connected). The proper sequence is to connect M44
and M45 first followed by M43 last. If the subwoofer is inoperative, be sure to check this condition. Refer to AV-
40, "Sound Is Not Heard From Subwoofer (Premium System)" .

The majority of the audio malfunctions are the result of outside causes (damaged CD, electromagnetic
interference, etc.). Check the symptoms below to diagnose the malfunction.

The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction-
ing. Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment, and then determine the cause.
NOTE:
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise
from trains and other sources. It is not a malfunction.

Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.

Multi-path noise: This noise results from the waves sent directly from the broadcast station arriving at the
antenna at a different time from the waves that reflect off of mountains or buildings.
Noise InspectionEKS00I9T
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
Symptom Check item
Audio system does not work properly.

Audio unit power supply circuit. Refer to AV- 2 4 , "Power Supply
Circuit Inspection" .

Audio unit. Refer to AV- 2 3 , "Trouble Diagnosis" .
No sound can be heard from all speakers. Audio unit. Refer to AV- 2 3 , "
Trouble Diagnosis" .
No sound can be heard from one or several speakers.

Open or short in audio signal circuit between audio unit and
front speaker. Refer to AV- 3 2 , "
Sound Is Not Heard From Front
Door Speaker (Base System)" or AV- 3 6 , "Sound Is Not Heard
From Front Door Speaker or Tweeter (Mid Level and Premium
System)" .

Front speaker. Refer to AV- 3 2 , "Sound Is Not Heard From Front
Door Speaker (Base System)" or AV- 3 6 , "Sound Is Not Heard
From Front Door Speaker or Tweeter (Mid Level and Premium
System)" .

Open or short in audio signal circuit between audio unit and
rear speaker. Refer to AV - 3 4 , "
Sound Is Not Heard From Rear
Door Speaker (Base System)" or AV- 3 8 , "Sound Is Not Heard
From Rear Door Speaker (Mid Level and Premium System)" .

Rear speaker. Refer to AV- 3 4 , "Sound Is Not Heard From Rear
Door Speaker (Base System)" or AV- 3 8 , "Sound Is Not Heard
From Rear Door Speaker (Mid Level and Premium System)" .

Tweeter (mid level and premium system) AV- 3 6 , "Sound Is Not
Heard From Front Door Speaker or Tweeter (Mid Level and
Premium System)" or AV-38, "Sound Is Not Heard From Rear
Door Speaker (Mid Level and Premium System)" .

Subwoofer (premium system). Refer to AV-40, "Sound Is Not
Heard From Subwoofer (Premium System)" .

Audio unit. Refer to AV- 2 4 , "Power Supply Circuit Inspection" .
No sound can be heard from radio or noise is heard.

Antenna feeder. Refer to AV- 4 8 , "AUDIO ANTENNA" .

Antenna. Refer to AV- 4 8 , "AUDIO ANTENNA" .

Audio unit. Refer to AV- 2 4 , "Power Supply Circuit Inspection" .

AV-24
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Revision: June 20062007 Versa
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Power Supply Circuit InspectionEKS00I9U
1. CHECK FUSE
Check that the following fuses of the subwoofer (premium system) and audio unit are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of blown fuse before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. AUDIO UNIT POWER SUPPLY CIRCUIT CHECK
1. Disconnect audio unit connector.
2. Check voltage between the audio unit and ground.
OK or NG
OK >> With premium system, GO TO 3.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
Occurrence condition Possible cause
Occurs only when engine is ON.A continuous growling noise occurs. The speed of
the noise varies with changes in the engine speed.Ignition components
A whistling noise occurs while the engine speed is
high. A booming noise occurs while the engine is
running and the lighting switch is ON.Generator
Noise only occurs when various
electrical components are oper-
ating.A cracking or snapping sound occurs with the
operation of various switches.Relay malfunction, radio malfunction
The noise occurs when various motors are operat-
ing.

Motor case ground

Motor
The noise occurs constantly, not just under certain conditions.

Rear defogger coil malfunction

Open circuit in printed heater
A cracking or snapping sound occurs while the vehicle is being driven, especially
when it is vibrating excessively.

Ground wire of body parts.

Ground due to improper part installation

Wiring connections or a short circuit
Unit Terminals Signal name Fuse No.
Audio unit19 Battery power 27
7 Ignition switch ACC or ON 20
Subwoofer (with premium audio) 1 Ignition switch ACC or ON 27
UnitTe r m i n a l N o .
OFF ACC ON (+)
(-)
Connector Terminal
Audio unit M4319 GroundBattery
voltageBattery
voltageBattery
voltage
7 Ground 0VBattery
voltageBattery
voltage
WKIA5345E

AUDIO
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3. SUBWOOFER (PREMIUM SYSTEM) POWER SUPPLY CIRCUIT CHECK
1. Disconnect subwoofer connector.
2. Check voltage between subwoofer (premium system) and
ground.
OK or NG
OK >> GO TO 4.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
4. GROUND CIRCUIT CHECK
Check continuity between subwoofer (premium system) harness
connector B29 terminal 3 and ground.
OK or NG
OK >> Inspection End.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness or connector.
Satellite Radio Tuner (Factory Installed) Power and Ground Supply Circuit
Inspection
EKS00I9V
1. CHECK FUSES
Check that the following fuses are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of blown fuse before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
UnitTerminal No.
OFF ACC ON (+)
(-)
Connector Terminal
Sub-
wooferB29 1 Ground 0VBattery
voltageBattery
voltage
WKIA5442E
Continuity should exist.
WKIA5443E
Unit Terminals Signal name Fuse No.
Satellite radio tuner (factory
installed)32 Battery power 27
36 Ignition switch ACC or ON 20

AV-26
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2. POWER SUPPLY CIRCUIT CHECK
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector B30.
3. Check voltage between the 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
1. Turn ignition switch OFF.
2. Inspect satellite radio tuner (factory installed) case ground.
3. Disconnect satellite radio tuner (factory installed) connector B30 (A) and audio unit connector M45 (B).
4. Check continuity between satellite radio tuner (factory installed) and audio unit.
OK or NG
OK >> Inspection End.
NG >>

Check connector housings for disconnected or loose
terminals.

Repair harness, connector or satellite radio tuner (fac-
tory installed) case ground.
Satellite Radio Tuner (Factory Installed) Communication Circuit InspectionEKS00I9W
1. CHECK HARNESS - 1
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner (factory installed) connector B30 and audio unit connector M45.
3. Check continuity between satellite radio tuner (factory installed)
harness connector B30 (A) terminal 28 and audio unit harness
connector M45 (B) terminal 48
4. Check continuity between satellite radio tuner (factory installed)
harness connector B30 (A) terminal 28 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
UnitTe r m i n a l N o .
OFF ACC ON (+)
(-)
Connector Terminal
Satellite
radio tuner
(factory
installed)B3032 GroundBattery
voltageBattery
voltageBattery
voltage
36 Ground 0VBattery
voltageBattery
voltage
WKIA4539E
Te r m i n a l s
Continuity Satellite radio tuner Audio unit
Connector Terminal Connector Terminal
A: B3025
B: M4545
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WKIA4540E
Continuity should exist.
Continuity should not exist.
WKIA4541E

AUDIO
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2. CHECK HARNESS - 2
1. Check continuity between satellite radio tuner (factory installed)
harness connector B30 (A) terminal 29 and audio unit harness
connector M45 (B) terminal 49
2. Check continuity between satellite radio tuner (factory installed)
harness connector B30 (A) terminal 29 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK HARNESS - 3
1. Check continuity between satellite radio tuner (factory installed)
harness connector B30 (A) terminal 30 and audio unit harness
connector M45 (B) terminal 50
2. Check continuity between satellite radio tuner (factory installed)
harness connector B30 (A) terminal 30 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK REQ1 SIGNAL
1. Connect satellite radio tuner (factory installed) connector and audio unit connector.
2. Turn ignition switch to ACC
3. Check signal between satellite radio tuner (factory installed) har-
ness connector B30 terminal 28 and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK >> GO TO 5.
NG >> Replace audio unit. Refer to AV- 4 3 , "
AUDIO UNIT" .
5. CHECK TXD SIGNAL
Check signal between satellite radio tuner (factory installed) harness
connector B30 terminal 29 and ground with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> GO TO 6.
NG >> Replace audio unit. Refer to AV- 4 3 , "
AUDIO UNIT" . Continuity should exist.
Continuity should not exist.
WKIA4542E
Continuity should exist.
Continuity should not exist.
WKIA4543E
28 - Ground : Refer to AV-21, "Terminals
and Reference Value for Sat-
ellite Radio Tuner" .
WKIA4544E
29 - Ground : Refer to AV-21, "Terminals
and Reference Value for Sat-
ellite Radio Tuner" .
WKIA4545E